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The Un-Openable Box (Forum Game)

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  • BrainstormBrainstorm Posts: 11,223Member ✭✭✭✭✭

    5/15

    NickCyden said:

    I walk up to the main gate. As I get there, a pair of guards stop me.
    "Halt! No one is allowed to enter the castle without Ric-... Hold on, Lord Nick? Oh, uh, please, come in."
    As I walk into the castle, I am escorted to the throne room.
    6/?

    Karciama said:

    challenge the reaper

    “I’m afraid I can’t do this,” Says the reaper. “If I touch you, you’ll die.”
    "Calm your caps, bro." -Brainstorm

    the following link is the best thing that could happen to you: http://forum.dashnet.org/discussions/tagged/brainstormgame

    Currently managing a large-based forum game.. DashNet RPG! Play it now: http://forum.dashnet.org/discussion/15882/dashnet-rpg-dashnets-greatest-forum-game-of-all-time
    Dashnet RPG Pastebin: https://pastebin.com/6301gzzx
  • NickCydenNickCyden Posts: 373Member ✭✭
    One of the Guards that was escorting me opens the doors to the throne room. Once open, a blond haired man looks up from a desk. He's wearing very decorative and light knight armor. He smiles once he sees me.
    "Ah, Nick! This is quite unexpected."
    "Yea. Long time no see Richter." I respond
    7/?
  • YosukeHanamuraYosukeHanamura Posts: 952Member, Helpful ✭✭
    6/15
    Now it is clear what i'm doing; charging an attack known as Kuro Ikazuchi (Lit. Black Thunder)
    In modern physics, antimatter is defined as a material composed of the antiparticle (or "partners") to the corresponding particles of ordinary matter.

    In theory, a particle and its anti-particle have the same mass as one another, but opposite electric charge, and other differences in quantum numbers. For example, a proton has positive charge while an antiproton has negative charge. A collision between any particle and its anti-particle partner is known to lead to their mutual annihilation, giving rise to various proportions of intense photons (gamma rays), neutrinos, and sometimes less-massive particle–antiparticle pairs.

    Annihilation usually results in a release of energy that becomes available for heat or work. The amount of the released energy is usually proportional to the total mass of the collided matter and antimatter, in accord with the mass–energy equivalence equation, E = mc2.

    Antimatter particles bind with one another to form antimatter, just as ordinary particles bind to form normal matter. For example, a positron (the antiparticle of the electron) and an antiproton (the antiparticle of the proton) can form an antihydrogen atom. Physical principles indicate that complex antimatter atomic nuclei are possible, as well as anti-atoms corresponding to the known chemical elements.

    There is considerable speculation as to why the observable universe is composed almost entirely of ordinary matter, as opposed to an equal mixture of matter and antimatter. This asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics. The process by which this inequality between matter and antimatter particles developed is called baryogenesis.

    Antimatter in the form of anti-atoms is one of the most difficult materials to produce. Individual antimatter particles, however, are commonly produced by particle accelerators and in some types of radioactive decay. The nuclei of antihelium have been artificially produced with difficulty. These are the most complex anti-nuclei so far observed.

    Formally, antimatter particles can be defined by their negative baryon number or lepton number, while "normal" (non-antimatter) matter particles have a positive baryon or lepton number. These two classes of particles are the antiparticle partners of one another.

    The idea of negative matter appears in past theories of matter that have now been abandoned. Using the once popular vortex theory of gravity, the possibility of matter with negative gravity was discussed by William Hicks in the 1880s. Between the 1880s and the 1890s, Karl Pearson proposed the existence of "squirts" and sinks of the flow of aether. The squirts represented normal matter and the sinks represented negative matter. Pearson's theory required a fourth dimension for the aether to flow from and into.

    The term antimatter was first used by Arthur Schuster in two rather whimsical letters to Nature in 1898, in which he coined the term. He hypothesized antiatoms, as well as whole antimatter solar systems, and discussed the possibility of matter and antimatter annihilating each other. Schuster's ideas were not a serious theoretical proposal, merely speculation, and like the previous ideas, differed from the modern concept of antimatter in that it possessed negative gravity.

    The modern theory of antimatter began in 1928, with a paper by Paul Dirac. Dirac realised that his relativistic version of the Schrödinger wave equation for electrons predicted the possibility of antielectrons. These were discovered by Carl D. Anderson in 1932 and named positrons (a portmanteau of "positive electron"). Although Dirac did not himself use the term antimatter, its use follows on naturally enough from antielectrons, antiprotons, etc. A complete periodic table of antimatter was envisaged by Charles Janet in 1929.

    The Feynman–Stueckelberg interpretation states that antimatter and antiparticles are regular particles traveling backward in time.

    There are compelling theoretical reasons to believe that, aside from the fact that antiparticles have different signs on all charges (such as electric charge and spin), matter and antimatter have exactly the same properties. This means a particle and its corresponding antiparticle must have identical masses and decay lifetimes (if unstable). It also implies that, for example, a star made up of antimatter (an "antistar") will shine just like an ordinary star. This idea was tested experimentally in 2016 by the ALPHA experiment, which measured the transition between the two lowest energy states of antihydrogen. The results, which are identical to that of hydrogen, confirmed the validity of quantum mechanics for antimatter.

    Positrons were reported in November 2008 to have been generated by Lawrence Livermore National Laboratory in larger numbers than by any previous synthetic process. A laser drove electrons through a gold target's nuclei, which caused the incoming electrons to emit energy quanta that decayed into both matter and antimatter. Positrons were detected at a higher rate and in greater density than ever previously detected in a laboratory. Previous experiments made smaller quantities of positrons using lasers and paper-thin targets; however, new simulations showed that short, ultra-intense lasers and millimeter-thick gold are a far more effective source.

    Antimatter cannot be stored in a container made of ordinary matter because antimatter reacts with any matter it touches, annihilating itself and an equal amount of the container. Antimatter in the form of charged particles can be contained by a combination of electric and magnetic fields, in a device called a Penning trap. This device cannot, however, contain antimatter that consists of uncharged particles, for which atomic traps are used. In particular, such a trap may use the dipole moment (electric or magnetic) of the trapped particles. At high vacuum, the matter or antimatter particles can be trapped and cooled with slightly off-resonant laser radiation using a magneto-optical trap or magnetic trap. Small particles can also be suspended with optical tweezers, using a highly focused laser beam.

    In 2011, CERN scientists were able to preserve antihydrogen for approximately 17 minutes.

    Scientists claim that antimatter is the costliest material to make. In 2006, Gerald Smith estimated $250 million could produce 10 milligrams of positrons (equivalent to $25 billion per gram); in 1999, NASA gave a figure of $62.5 trillion per gram of antihydrogen. This is because production is difficult (only very few antiprotons are produced in reactions in particle accelerators), and because there is higher demand for other uses of particle accelerators. According to CERN, it has cost a few hundred million Swiss francs to produce about 1 billionth of a gram (the amount used so far for particle/antiparticle collisions). In comparison, to produce the first atomic weapon, the cost of the Manhattan Project was estimated at $23 billion with inflation during 2007.

    Several studies funded by the NASA Institute for Advanced Concepts are exploring whether it might be possible to use magnetic scoops to collect the antimatter that occurs naturally in the Van Allen belt of the Earth, and ultimately, the belts of gas giants, like Jupiter, hopefully at a lower cost per gram.

    Matter–antimatter reactions have practical applications in medical imaging, such as positron emission tomography (PET). In positive beta decay, a nuclide loses surplus positive charge by emitting a positron (in the same event, a proton becomes a neutron, and a neutrino is also emitted). Nuclides with surplus positive charge are easily made in a cyclotron and are widely generated for medical use. Antiprotons have also been shown within laboratory experiments to have the potential to treat certain cancers, in a similar method currently used for ion (proton) therapy.

    Antimatter has been considered as a trigger mechanism for nuclear weapons. A major obstacle is the difficulty of producing antimatter in large enough quantities, and there is no evidence that it will ever be feasible. However, the U.S. Air Force funded studies of the physics of antimatter in the Cold War, and began considering its possible use in weapons, not just as a trigger, but as the explosive itself.
  • KarciamaKarciama Posts: 70Member ✭✭
    1/? go somewhere
  • BrainstormBrainstorm Posts: 11,223Member ✭✭✭✭✭
    NickCyden said:

    One of the Guards that was escorting me opens the doors to the throne room. Once open, a blond haired man looks up from a desk. He's wearing very decorative and light knight armor. He smiles once he sees me.
    "Ah, Nick! This is quite unexpected."
    "Yea. Long time no see Richter." I respond
    7/?

    “What the fuck kind of name is richter?” Remarks the reaper.

    6/15
    Now it is clear what i'm doing; charging an attack known as Kuro Ikazuchi (Lit. Black Thunder)

    Lit. AF
    Karciama said:

    1/? go somewhere

    Cool, you’re getting somewhere now (ba dum ts)
    "Calm your caps, bro." -Brainstorm

    the following link is the best thing that could happen to you: http://forum.dashnet.org/discussions/tagged/brainstormgame

    Currently managing a large-based forum game.. DashNet RPG! Play it now: http://forum.dashnet.org/discussion/15882/dashnet-rpg-dashnets-greatest-forum-game-of-all-time
    Dashnet RPG Pastebin: https://pastebin.com/6301gzzx
  • YosukeHanamuraYosukeHanamura Posts: 952Member, Helpful ✭✭
    (Lit: Literal translation xd)
    7/15
    In modern physics, antimatter is defined as a material composed of the antiparticle (or "partners") to the corresponding particles of ordinary matter.

    In theory, a particle and its anti-particle have the same mass as one another, but opposite electric charge, and other differences in quantum numbers. For example, a proton has positive charge while an antiproton has negative charge. A collision between any particle and its anti-particle partner is known to lead to their mutual annihilation, giving rise to various proportions of intense photons (gamma rays), neutrinos, and sometimes less-massive particle–antiparticle pairs.

    Annihilation usually results in a release of energy that becomes available for heat or work. The amount of the released energy is usually proportional to the total mass of the collided matter and antimatter, in accord with the mass–energy equivalence equation, E = mc2.

    Antimatter particles bind with one another to form antimatter, just as ordinary particles bind to form normal matter. For example, a positron (the antiparticle of the electron) and an antiproton (the antiparticle of the proton) can form an antihydrogen atom. Physical principles indicate that complex antimatter atomic nuclei are possible, as well as anti-atoms corresponding to the known chemical elements.

    There is considerable speculation as to why the observable universe is composed almost entirely of ordinary matter, as opposed to an equal mixture of matter and antimatter. This asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics. The process by which this inequality between matter and antimatter particles developed is called baryogenesis.

    Antimatter in the form of anti-atoms is one of the most difficult materials to produce. Individual antimatter particles, however, are commonly produced by particle accelerators and in some types of radioactive decay. The nuclei of antihelium have been artificially produced with difficulty. These are the most complex anti-nuclei so far observed.

    Formally, antimatter particles can be defined by their negative baryon number or lepton number, while "normal" (non-antimatter) matter particles have a positive baryon or lepton number. These two classes of particles are the antiparticle partners of one another.

    The idea of negative matter appears in past theories of matter that have now been abandoned. Using the once popular vortex theory of gravity, the possibility of matter with negative gravity was discussed by William Hicks in the 1880s. Between the 1880s and the 1890s, Karl Pearson proposed the existence of "squirts" and sinks of the flow of aether. The squirts represented normal matter and the sinks represented negative matter. Pearson's theory required a fourth dimension for the aether to flow from and into.

    The term antimatter was first used by Arthur Schuster in two rather whimsical letters to Nature in 1898, in which he coined the term. He hypothesized antiatoms, as well as whole antimatter solar systems, and discussed the possibility of matter and antimatter annihilating each other. Schuster's ideas were not a serious theoretical proposal, merely speculation, and like the previous ideas, differed from the modern concept of antimatter in that it possessed negative gravity.

    The modern theory of antimatter began in 1928, with a paper by Paul Dirac. Dirac realised that his relativistic version of the Schrödinger wave equation for electrons predicted the possibility of antielectrons. These were discovered by Carl D. Anderson in 1932 and named positrons (a portmanteau of "positive electron"). Although Dirac did not himself use the term antimatter, its use follows on naturally enough from antielectrons, antiprotons, etc. A complete periodic table of antimatter was envisaged by Charles Janet in 1929.

    The Feynman–Stueckelberg interpretation states that antimatter and antiparticles are regular particles traveling backward in time.

    There are compelling theoretical reasons to believe that, aside from the fact that antiparticles have different signs on all charges (such as electric charge and spin), matter and antimatter have exactly the same properties. This means a particle and its corresponding antiparticle must have identical masses and decay lifetimes (if unstable). It also implies that, for example, a star made up of antimatter (an "antistar") will shine just like an ordinary star. This idea was tested experimentally in 2016 by the ALPHA experiment, which measured the transition between the two lowest energy states of antihydrogen. The results, which are identical to that of hydrogen, confirmed the validity of quantum mechanics for antimatter.

    Positrons were reported in November 2008 to have been generated by Lawrence Livermore National Laboratory in larger numbers than by any previous synthetic process. A laser drove electrons through a gold target's nuclei, which caused the incoming electrons to emit energy quanta that decayed into both matter and antimatter. Positrons were detected at a higher rate and in greater density than ever previously detected in a laboratory. Previous experiments made smaller quantities of positrons using lasers and paper-thin targets; however, new simulations showed that short, ultra-intense lasers and millimeter-thick gold are a far more effective source.

    Antimatter cannot be stored in a container made of ordinary matter because antimatter reacts with any matter it touches, annihilating itself and an equal amount of the container. Antimatter in the form of charged particles can be contained by a combination of electric and magnetic fields, in a device called a Penning trap. This device cannot, however, contain antimatter that consists of uncharged particles, for which atomic traps are used. In particular, such a trap may use the dipole moment (electric or magnetic) of the trapped particles. At high vacuum, the matter or antimatter particles can be trapped and cooled with slightly off-resonant laser radiation using a magneto-optical trap or magnetic trap. Small particles can also be suspended with optical tweezers, using a highly focused laser beam.

    In 2011, CERN scientists were able to preserve antihydrogen for approximately 17 minutes.

    Scientists claim that antimatter is the costliest material to make. In 2006, Gerald Smith estimated $250 million could produce 10 milligrams of positrons (equivalent to $25 billion per gram); in 1999, NASA gave a figure of $62.5 trillion per gram of antihydrogen. This is because production is difficult (only very few antiprotons are produced in reactions in particle accelerators), and because there is higher demand for other uses of particle accelerators. According to CERN, it has cost a few hundred million Swiss francs to produce about 1 billionth of a gram (the amount used so far for particle/antiparticle collisions). In comparison, to produce the first atomic weapon, the cost of the Manhattan Project was estimated at $23 billion with inflation during 2007.

    Several studies funded by the NASA Institute for Advanced Concepts are exploring whether it might be possible to use magnetic scoops to collect the antimatter that occurs naturally in the Van Allen belt of the Earth, and ultimately, the belts of gas giants, like Jupiter, hopefully at a lower cost per gram.

    Matter–antimatter reactions have practical applications in medical imaging, such as positron emission tomography (PET). In positive beta decay, a nuclide loses surplus positive charge by emitting a positron (in the same event, a proton becomes a neutron, and a neutrino is also emitted). Nuclides with surplus positive charge are easily made in a cyclotron and are widely generated for medical use. Antiprotons have also been shown within laboratory experiments to have the potential to treat certain cancers, in a similar method currently used for ion (proton) therapy.

    Antimatter has been considered as a trigger mechanism for nuclear weapons. A major obstacle is the difficulty of producing antimatter in large enough quantities, and there is no evidence that it will ever be feasible. However, the U.S. Air Force funded studies of the physics of antimatter in the Cold War, and began considering its possible use in weapons, not just as a trigger, but as the explosive itself.
  • wadimwadim Posts: 9Member
    I drop a anvil on the box
  • NickCydenNickCyden Posts: 373Member ✭✭
    (Pronounced Rick-ter. Actually very popular in Asian culture, if I'm not mistaken.)

    "So, why have you come to visit me today?" Richter Inquires.

    "Well, you see, I need some help with this...box."

    "A box?" Richter looks at me as if I were a madman, until his face lights up. "Oh! That's right! I've heard of your tales! I'm surprised you're part of it. Well, anyways, how can I help?"

    "Well, you see, I realized that I'm not strong enough for this. I was hoping that, with you on our side, it could give us that slight edge in combat."

    "Hmm..." Richter thinks for a moment. "I understand. I will try to help any way I can, but that's if our god, Brainstorm, allows me into battle. If not, I could always try sending some supplies and men your way."

    I nod, "I understand. Well, that is all I came for, so I must be on my way."

    "Farewell!" Richter says as he waves me off, and I start heading back to the box.
    8/9
  • KarciamaKarciama Posts: 70Member ✭✭
    2/? train somewhere
  • BrainstormBrainstorm Posts: 11,223Member ✭✭✭✭✭

    (Lit: Literal translation xd)
    7/15

    wadim said:

    I drop a anvil on the box

    The anvil splits into two upon collision, it still manages to leave a small mark that disappears seconds later.
    “That totally hurt.” Says the box, sarcastically

    +600,000 XP
    LEVEL UP
    NickCyden said:

    (Pronounced Rick-ter. Actually very popular in Asian culture, if I'm not mistaken.)

    "So, why have you come to visit me today?" Richter Inquires.

    "Well, you see, I need some help with this...box."

    "A box?" Richter looks at me as if I were a madman, until his face lights up. "Oh! That's right! I've heard of your tales! I'm surprised you're part of it. Well, anyways, how can I help?"

    "Well, you see, I realized that I'm not strong enough for this. I was hoping that, with you on our side, it could give us that slight edge in combat."

    "Hmm..." Richter thinks for a moment. "I understand. I will try to help any way I can, but that's if our god, Brainstorm, allows me into battle. If not, I could always try sending some supplies and men your way."

    I nod, "I understand. Well, that is all I came for, so I must be on my way."

    "Farewell!" Richter says as he waves me off, and I start heading back to the box.
    8/9

    “You return..” Says the box, cracking its nonexistent knuckles
    Karciama said:

    2/? train somewhere

    "Calm your caps, bro." -Brainstorm

    the following link is the best thing that could happen to you: http://forum.dashnet.org/discussions/tagged/brainstormgame

    Currently managing a large-based forum game.. DashNet RPG! Play it now: http://forum.dashnet.org/discussion/15882/dashnet-rpg-dashnets-greatest-forum-game-of-all-time
    Dashnet RPG Pastebin: https://pastebin.com/6301gzzx
  • YosukeHanamuraYosukeHanamura Posts: 952Member, Helpful ✭✭
    8/15
    In modern physics, antimatter is defined as a material composed of the antiparticle (or "partners") to the corresponding particles of ordinary matter.

    In theory, a particle and its anti-particle have the same mass as one another, but opposite electric charge, and other differences in quantum numbers. For example, a proton has positive charge while an antiproton has negative charge. A collision between any particle and its anti-particle partner is known to lead to their mutual annihilation, giving rise to various proportions of intense photons (gamma rays), neutrinos, and sometimes less-massive particle–antiparticle pairs.

    Annihilation usually results in a release of energy that becomes available for heat or work. The amount of the released energy is usually proportional to the total mass of the collided matter and antimatter, in accord with the mass–energy equivalence equation, E = mc2.

    Antimatter particles bind with one another to form antimatter, just as ordinary particles bind to form normal matter. For example, a positron (the antiparticle of the electron) and an antiproton (the antiparticle of the proton) can form an antihydrogen atom. Physical principles indicate that complex antimatter atomic nuclei are possible, as well as anti-atoms corresponding to the known chemical elements.

    There is considerable speculation as to why the observable universe is composed almost entirely of ordinary matter, as opposed to an equal mixture of matter and antimatter. This asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics. The process by which this inequality between matter and antimatter particles developed is called baryogenesis.

    Antimatter in the form of anti-atoms is one of the most difficult materials to produce. Individual antimatter particles, however, are commonly produced by particle accelerators and in some types of radioactive decay. The nuclei of antihelium have been artificially produced with difficulty. These are the most complex anti-nuclei so far observed.

    Formally, antimatter particles can be defined by their negative baryon number or lepton number, while "normal" (non-antimatter) matter particles have a positive baryon or lepton number. These two classes of particles are the antiparticle partners of one another.

    The idea of negative matter appears in past theories of matter that have now been abandoned. Using the once popular vortex theory of gravity, the possibility of matter with negative gravity was discussed by William Hicks in the 1880s. Between the 1880s and the 1890s, Karl Pearson proposed the existence of "squirts" and sinks of the flow of aether. The squirts represented normal matter and the sinks represented negative matter. Pearson's theory required a fourth dimension for the aether to flow from and into.

    The term antimatter was first used by Arthur Schuster in two rather whimsical letters to Nature in 1898, in which he coined the term. He hypothesized antiatoms, as well as whole antimatter solar systems, and discussed the possibility of matter and antimatter annihilating each other. Schuster's ideas were not a serious theoretical proposal, merely speculation, and like the previous ideas, differed from the modern concept of antimatter in that it possessed negative gravity.

    The modern theory of antimatter began in 1928, with a paper by Paul Dirac. Dirac realised that his relativistic version of the Schrödinger wave equation for electrons predicted the possibility of antielectrons. These were discovered by Carl D. Anderson in 1932 and named positrons (a portmanteau of "positive electron"). Although Dirac did not himself use the term antimatter, its use follows on naturally enough from antielectrons, antiprotons, etc. A complete periodic table of antimatter was envisaged by Charles Janet in 1929.

    The Feynman–Stueckelberg interpretation states that antimatter and antiparticles are regular particles traveling backward in time.

    There are compelling theoretical reasons to believe that, aside from the fact that antiparticles have different signs on all charges (such as electric charge and spin), matter and antimatter have exactly the same properties. This means a particle and its corresponding antiparticle must have identical masses and decay lifetimes (if unstable). It also implies that, for example, a star made up of antimatter (an "antistar") will shine just like an ordinary star. This idea was tested experimentally in 2016 by the ALPHA experiment, which measured the transition between the two lowest energy states of antihydrogen. The results, which are identical to that of hydrogen, confirmed the validity of quantum mechanics for antimatter.

    Positrons were reported in November 2008 to have been generated by Lawrence Livermore National Laboratory in larger numbers than by any previous synthetic process. A laser drove electrons through a gold target's nuclei, which caused the incoming electrons to emit energy quanta that decayed into both matter and antimatter. Positrons were detected at a higher rate and in greater density than ever previously detected in a laboratory. Previous experiments made smaller quantities of positrons using lasers and paper-thin targets; however, new simulations showed that short, ultra-intense lasers and millimeter-thick gold are a far more effective source.

    Antimatter cannot be stored in a container made of ordinary matter because antimatter reacts with any matter it touches, annihilating itself and an equal amount of the container. Antimatter in the form of charged particles can be contained by a combination of electric and magnetic fields, in a device called a Penning trap. This device cannot, however, contain antimatter that consists of uncharged particles, for which atomic traps are used. In particular, such a trap may use the dipole moment (electric or magnetic) of the trapped particles. At high vacuum, the matter or antimatter particles can be trapped and cooled with slightly off-resonant laser radiation using a magneto-optical trap or magnetic trap. Small particles can also be suspended with optical tweezers, using a highly focused laser beam.

    In 2011, CERN scientists were able to preserve antihydrogen for approximately 17 minutes.

    Scientists claim that antimatter is the costliest material to make. In 2006, Gerald Smith estimated $250 million could produce 10 milligrams of positrons (equivalent to $25 billion per gram); in 1999, NASA gave a figure of $62.5 trillion per gram of antihydrogen. This is because production is difficult (only very few antiprotons are produced in reactions in particle accelerators), and because there is higher demand for other uses of particle accelerators. According to CERN, it has cost a few hundred million Swiss francs to produce about 1 billionth of a gram (the amount used so far for particle/antiparticle collisions). In comparison, to produce the first atomic weapon, the cost of the Manhattan Project was estimated at $23 billion with inflation during 2007.

    Several studies funded by the NASA Institute for Advanced Concepts are exploring whether it might be possible to use magnetic scoops to collect the antimatter that occurs naturally in the Van Allen belt of the Earth, and ultimately, the belts of gas giants, like Jupiter, hopefully at a lower cost per gram.

    Matter–antimatter reactions have practical applications in medical imaging, such as positron emission tomography (PET). In positive beta decay, a nuclide loses surplus positive charge by emitting a positron (in the same event, a proton becomes a neutron, and a neutrino is also emitted). Nuclides with surplus positive charge are easily made in a cyclotron and are widely generated for medical use. Antiprotons have also been shown within laboratory experiments to have the potential to treat certain cancers, in a similar method currently used for ion (proton) therapy.

    Antimatter has been considered as a trigger mechanism for nuclear weapons. A major obstacle is the difficulty of producing antimatter in large enough quantities, and there is no evidence that it will ever be feasible. However, the U.S. Air Force funded studies of the physics of antimatter in the Cold War, and began considering its possible use in weapons, not just as a trigger, but as the explosive itself.
  • NickCydenNickCyden Posts: 373Member ✭✭
    I stand there, readying up for combat again, and awaiting Richter's appearance, if he can.
    9/9
  • PointedBatPointedBat Posts: 47Member ✭✭
    I throw the box into a f***ing black hole.
    You don't matter. Give up.
  • KarciamaKarciama Posts: 70Member ✭✭
    3/? exist?
  • BrainstormBrainstorm Posts: 11,223Member ✭✭✭✭✭

    8/15

    NickCyden said:

    I stand there, readying up for combat again, and awaiting Richter's appearance, if he can.
    9/9

    I throw the box into a f***ing black hole.

    The box absorbs the black hole, and gets shot back to earth, leaving a crater near the city. You run to catch up to its location and find it containing many scratches, which heal later.

    +1.9M XP
    NEW LOCATION: Hadrik Forest
    Karciama said:

    3/? exist?

    "Calm your caps, bro." -Brainstorm

    the following link is the best thing that could happen to you: http://forum.dashnet.org/discussions/tagged/brainstormgame

    Currently managing a large-based forum game.. DashNet RPG! Play it now: http://forum.dashnet.org/discussion/15882/dashnet-rpg-dashnets-greatest-forum-game-of-all-time
    Dashnet RPG Pastebin: https://pastebin.com/6301gzzx
  • YosukeHanamuraYosukeHanamura Posts: 952Member, Helpful ✭✭
    9/15 The attack being charged starts to become noticeable
    In modern physics, antimatter is defined as a material composed of the antiparticle (or "partners") to the corresponding particles of ordinary matter.

    In theory, a particle and its anti-particle have the same mass as one another, but opposite electric charge, and other differences in quantum numbers. For example, a proton has positive charge while an antiproton has negative charge. A collision between any particle and its anti-particle partner is known to lead to their mutual annihilation, giving rise to various proportions of intense photons (gamma rays), neutrinos, and sometimes less-massive particle–antiparticle pairs.

    Annihilation usually results in a release of energy that becomes available for heat or work. The amount of the released energy is usually proportional to the total mass of the collided matter and antimatter, in accord with the mass–energy equivalence equation, E = mc2.

    Antimatter particles bind with one another to form antimatter, just as ordinary particles bind to form normal matter. For example, a positron (the antiparticle of the electron) and an antiproton (the antiparticle of the proton) can form an antihydrogen atom. Physical principles indicate that complex antimatter atomic nuclei are possible, as well as anti-atoms corresponding to the known chemical elements.

    There is considerable speculation as to why the observable universe is composed almost entirely of ordinary matter, as opposed to an equal mixture of matter and antimatter. This asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics. The process by which this inequality between matter and antimatter particles developed is called baryogenesis.

    Antimatter in the form of anti-atoms is one of the most difficult materials to produce. Individual antimatter particles, however, are commonly produced by particle accelerators and in some types of radioactive decay. The nuclei of antihelium have been artificially produced with difficulty. These are the most complex anti-nuclei so far observed.

    Formally, antimatter particles can be defined by their negative baryon number or lepton number, while "normal" (non-antimatter) matter particles have a positive baryon or lepton number. These two classes of particles are the antiparticle partners of one another.

    The idea of negative matter appears in past theories of matter that have now been abandoned. Using the once popular vortex theory of gravity, the possibility of matter with negative gravity was discussed by William Hicks in the 1880s. Between the 1880s and the 1890s, Karl Pearson proposed the existence of "squirts" and sinks of the flow of aether. The squirts represented normal matter and the sinks represented negative matter. Pearson's theory required a fourth dimension for the aether to flow from and into.

    The term antimatter was first used by Arthur Schuster in two rather whimsical letters to Nature in 1898, in which he coined the term. He hypothesized antiatoms, as well as whole antimatter solar systems, and discussed the possibility of matter and antimatter annihilating each other. Schuster's ideas were not a serious theoretical proposal, merely speculation, and like the previous ideas, differed from the modern concept of antimatter in that it possessed negative gravity.

    The modern theory of antimatter began in 1928, with a paper by Paul Dirac. Dirac realised that his relativistic version of the Schrödinger wave equation for electrons predicted the possibility of antielectrons. These were discovered by Carl D. Anderson in 1932 and named positrons (a portmanteau of "positive electron"). Although Dirac did not himself use the term antimatter, its use follows on naturally enough from antielectrons, antiprotons, etc. A complete periodic table of antimatter was envisaged by Charles Janet in 1929.

    The Feynman–Stueckelberg interpretation states that antimatter and antiparticles are regular particles traveling backward in time.

    There are compelling theoretical reasons to believe that, aside from the fact that antiparticles have different signs on all charges (such as electric charge and spin), matter and antimatter have exactly the same properties. This means a particle and its corresponding antiparticle must have identical masses and decay lifetimes (if unstable). It also implies that, for example, a star made up of antimatter (an "antistar") will shine just like an ordinary star. This idea was tested experimentally in 2016 by the ALPHA experiment, which measured the transition between the two lowest energy states of antihydrogen. The results, which are identical to that of hydrogen, confirmed the validity of quantum mechanics for antimatter.

    Positrons were reported in November 2008 to have been generated by Lawrence Livermore National Laboratory in larger numbers than by any previous synthetic process. A laser drove electrons through a gold target's nuclei, which caused the incoming electrons to emit energy quanta that decayed into both matter and antimatter. Positrons were detected at a higher rate and in greater density than ever previously detected in a laboratory. Previous experiments made smaller quantities of positrons using lasers and paper-thin targets; however, new simulations showed that short, ultra-intense lasers and millimeter-thick gold are a far more effective source.

    Antimatter cannot be stored in a container made of ordinary matter because antimatter reacts with any matter it touches, annihilating itself and an equal amount of the container. Antimatter in the form of charged particles can be contained by a combination of electric and magnetic fields, in a device called a Penning trap. This device cannot, however, contain antimatter that consists of uncharged particles, for which atomic traps are used. In particular, such a trap may use the dipole moment (electric or magnetic) of the trapped particles. At high vacuum, the matter or antimatter particles can be trapped and cooled with slightly off-resonant laser radiation using a magneto-optical trap or magnetic trap. Small particles can also be suspended with optical tweezers, using a highly focused laser beam.

    In 2011, CERN scientists were able to preserve antihydrogen for approximately 17 minutes.

    Scientists claim that antimatter is the costliest material to make. In 2006, Gerald Smith estimated $250 million could produce 10 milligrams of positrons (equivalent to $25 billion per gram); in 1999, NASA gave a figure of $62.5 trillion per gram of antihydrogen. This is because production is difficult (only very few antiprotons are produced in reactions in particle accelerators), and because there is higher demand for other uses of particle accelerators. According to CERN, it has cost a few hundred million Swiss francs to produce about 1 billionth of a gram (the amount used so far for particle/antiparticle collisions). In comparison, to produce the first atomic weapon, the cost of the Manhattan Project was estimated at $23 billion with inflation during 2007.

    Several studies funded by the NASA Institute for Advanced Concepts are exploring whether it might be possible to use magnetic scoops to collect the antimatter that occurs naturally in the Van Allen belt of the Earth, and ultimately, the belts of gas giants, like Jupiter, hopefully at a lower cost per gram.

    Matter–antimatter reactions have practical applications in medical imaging, such as positron emission tomography (PET). In positive beta decay, a nuclide loses surplus positive charge by emitting a positron (in the same event, a proton becomes a neutron, and a neutrino is also emitted). Nuclides with surplus positive charge are easily made in a cyclotron and are widely generated for medical use. Antiprotons have also been shown within laboratory experiments to have the potential to treat certain cancers, in a similar method currently used for ion (proton) therapy.

    Antimatter has been considered as a trigger mechanism for nuclear weapons. A major obstacle is the difficulty of producing antimatter in large enough quantities, and there is no evidence that it will ever be feasible. However, the U.S. Air Force funded studies of the physics of antimatter in the Cold War, and began considering its possible use in weapons, not just as a trigger, but as the explosive itself.
  • KarciamaKarciama Posts: 70Member ✭✭
    try to find some sort of frost magic 4/?
  • SphealSpheal Posts: 197Member ✭✭
    *Rolls into the box's general vicinity*
    "Hi adventurers! I'm a Spheal! I also like Spheals! Spheals are great!"
    "Oohhhhh, a box! Hey, what are you guys doing to this thing? It looks like someone has tried to kill it many,many times..."
    spheals are round
    spheals are good
  • PointedBatPointedBat Posts: 47Member ✭✭
    I throw it to the very top of Celeste mountain and cook it at 150°C, then flip and cook at 23°C for 4:00, then cook at 23°C then flip and cook at 150°C for 4:00 and finally cook at 23°C then flip and cook at 23°C for 5:00.
    You don't matter. Give up.
  • NickCydenNickCyden Posts: 373Member ✭✭
    (I'm going to assume you're either going to make me control Richter or not let him be used at all. Never really got a conformation.)

    I pull out an anvil, Blacksmith hammer, and grindstone, along with a shit-load of metal of various kinds. Iron, Tin, Copper, Titanium, Adamantite, Cobalt. You name it, I have it.
    1/?
  • Drago_mehDrago_meh Posts: 2,742Member, Wiener ✭✭✭
    I return from the grave to congratulate the box sarcastically on surviving thus far.
    Some forgotten user who has aged with time and transitioned into lurking the site instead of actually being active.
  • wadimwadim Posts: 9Member
    I throw a BIG cookie at the box
  • thomfradethomfrade Posts: 7Member
    i use a glowing magic crowbar to try to open the box
  • BrainstormBrainstorm Posts: 11,223Member ✭✭✭✭✭

    9/15 The attack being charged starts to become noticeable

    Karciama said:

    try to find some sort of frost magic 4/?

    Spheal said:

    *Rolls into the box's general vicinity*
    "Hi adventurers! I'm a Spheal! I also like Spheals! Spheals are great!"
    "Oohhhhh, a box! Hey, what are you guys doing to this thing? It looks like someone has tried to kill it many,many times..."

    Death, still leaning on a wall which seemingly came out of nowhere, with a cigarette on his mouth, picks the cigarette off his mouth with two fingers, and puts it off with his eyehole
    “And you can try killing it many more times,” He remarks, smirking. “Not as if it’ll have any effect. Go ahead, you’re welcome to try.”

    The box makes a similar smirky face.

    I throw it to the very top of Celeste mountain and cook it at 150°C, then flip and cook at 23°C for 4:00, then cook at 23°C then flip and cook at 150°C for 4:00 and finally cook at 23°C then flip and cook at 23°C for 5:00.

    After this cooking period, the box becomes too hot to touch, and the mountain itself starts to melt down and the entire planet’s sea level rises by a few meters, sinking a few important cities here and there.
    +2.4M XP
    NickCyden said:

    (I'm going to assume you're either going to make me control Richter or not let him be used at all. Never really got a conformation.)

    I pull out an anvil, Blacksmith hammer, and grindstone, along with a shit-load of metal of various kinds. Iron, Tin, Copper, Titanium, Adamantite, Cobalt. You name it, I have it.
    1/?

    Death stares at you, with a dead stare and smiles.
    “This better be good.” He states, lighting another cigarette with the merely hot stare of his majestic non-existent eyes.
    Drago_meh said:

    I return from the grave to congratulate the box sarcastically on surviving thus far.

    “What can I say except fuk you?” Says the box.
    wadim said:

    I throw a BIG cookie at the box

    The cookie bashes into the box, tossing it away and causing it to collide to some strange twisted tree, and suddenly, the box teleports away. You all decide to follow and find yourself in a strange magical place with a light green sky and blue clouds, and pink trees.

    “Welcome to the Land of Dreams, where all little bitches appear when they are asleep.” Shouts death, as he drops with his motorbike from the portal, turning it to a scythe again as he watches you all fall face-first on the delicious dream dirt.
    +6.9M XP
    LEVEL UP

    New Arena: Dreamland

    thomfrade said:

    i use a glowing magic crowbar to try to open the box

    You try to cry it open for a few minutes, until your arms break from the pressure. The box laughs at you’re failure, but then says “Ow.”
    +16.8M XP


    —�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—

    Welcome to the Land of Dreams (??? turns remaining)

    It seems you have appeared in the land of dreams, thanks to one brave and cookielicious individual, a strange land where the sky is light green and the clouds blue, the trees pink, and the dreams come true!
    In this place, you can almost make your dreams true, so even what seems impossible can happen with just a little bit of imagination! Also, you get triple the experience with each move, oh, and, Death despises this place so he can be a little more frustrated around now.
    "Calm your caps, bro." -Brainstorm

    the following link is the best thing that could happen to you: http://forum.dashnet.org/discussions/tagged/brainstormgame

    Currently managing a large-based forum game.. DashNet RPG! Play it now: http://forum.dashnet.org/discussion/15882/dashnet-rpg-dashnets-greatest-forum-game-of-all-time
    Dashnet RPG Pastebin: https://pastebin.com/6301gzzx
  • YosukeHanamuraYosukeHanamura Posts: 952Member, Helpful ✭✭
    10/15
    In modern physics, antimatter is defined as a material composed of the antiparticle (or "partners") to the corresponding particles of ordinary matter.

    In theory, a particle and its anti-particle have the same mass as one another, but opposite electric charge, and other differences in quantum numbers. For example, a proton has positive charge while an antiproton has negative charge. A collision between any particle and its anti-particle partner is known to lead to their mutual annihilation, giving rise to various proportions of intense photons (gamma rays), neutrinos, and sometimes less-massive particle–antiparticle pairs.

    Annihilation usually results in a release of energy that becomes available for heat or work. The amount of the released energy is usually proportional to the total mass of the collided matter and antimatter, in accord with the mass–energy equivalence equation, E = mc2.

    Antimatter particles bind with one another to form antimatter, just as ordinary particles bind to form normal matter. For example, a positron (the antiparticle of the electron) and an antiproton (the antiparticle of the proton) can form an antihydrogen atom. Physical principles indicate that complex antimatter atomic nuclei are possible, as well as anti-atoms corresponding to the known chemical elements.

    There is considerable speculation as to why the observable universe is composed almost entirely of ordinary matter, as opposed to an equal mixture of matter and antimatter. This asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics. The process by which this inequality between matter and antimatter particles developed is called baryogenesis.

    Antimatter in the form of anti-atoms is one of the most difficult materials to produce. Individual antimatter particles, however, are commonly produced by particle accelerators and in some types of radioactive decay. The nuclei of antihelium have been artificially produced with difficulty. These are the most complex anti-nuclei so far observed.

    Formally, antimatter particles can be defined by their negative baryon number or lepton number, while "normal" (non-antimatter) matter particles have a positive baryon or lepton number. These two classes of particles are the antiparticle partners of one another.

    The idea of negative matter appears in past theories of matter that have now been abandoned. Using the once popular vortex theory of gravity, the possibility of matter with negative gravity was discussed by William Hicks in the 1880s. Between the 1880s and the 1890s, Karl Pearson proposed the existence of "squirts" and sinks of the flow of aether. The squirts represented normal matter and the sinks represented negative matter. Pearson's theory required a fourth dimension for the aether to flow from and into.

    The term antimatter was first used by Arthur Schuster in two rather whimsical letters to Nature in 1898, in which he coined the term. He hypothesized antiatoms, as well as whole antimatter solar systems, and discussed the possibility of matter and antimatter annihilating each other. Schuster's ideas were not a serious theoretical proposal, merely speculation, and like the previous ideas, differed from the modern concept of antimatter in that it possessed negative gravity.

    The modern theory of antimatter began in 1928, with a paper by Paul Dirac. Dirac realised that his relativistic version of the Schrödinger wave equation for electrons predicted the possibility of antielectrons. These were discovered by Carl D. Anderson in 1932 and named positrons (a portmanteau of "positive electron"). Although Dirac did not himself use the term antimatter, its use follows on naturally enough from antielectrons, antiprotons, etc. A complete periodic table of antimatter was envisaged by Charles Janet in 1929.

    The Feynman–Stueckelberg interpretation states that antimatter and antiparticles are regular particles traveling backward in time.

    There are compelling theoretical reasons to believe that, aside from the fact that antiparticles have different signs on all charges (such as electric charge and spin), matter and antimatter have exactly the same properties. This means a particle and its corresponding antiparticle must have identical masses and decay lifetimes (if unstable). It also implies that, for example, a star made up of antimatter (an "antistar") will shine just like an ordinary star. This idea was tested experimentally in 2016 by the ALPHA experiment, which measured the transition between the two lowest energy states of antihydrogen. The results, which are identical to that of hydrogen, confirmed the validity of quantum mechanics for antimatter.

    Positrons were reported in November 2008 to have been generated by Lawrence Livermore National Laboratory in larger numbers than by any previous synthetic process. A laser drove electrons through a gold target's nuclei, which caused the incoming electrons to emit energy quanta that decayed into both matter and antimatter. Positrons were detected at a higher rate and in greater density than ever previously detected in a laboratory. Previous experiments made smaller quantities of positrons using lasers and paper-thin targets; however, new simulations showed that short, ultra-intense lasers and millimeter-thick gold are a far more effective source.

    Antimatter cannot be stored in a container made of ordinary matter because antimatter reacts with any matter it touches, annihilating itself and an equal amount of the container. Antimatter in the form of charged particles can be contained by a combination of electric and magnetic fields, in a device called a Penning trap. This device cannot, however, contain antimatter that consists of uncharged particles, for which atomic traps are used. In particular, such a trap may use the dipole moment (electric or magnetic) of the trapped particles. At high vacuum, the matter or antimatter particles can be trapped and cooled with slightly off-resonant laser radiation using a magneto-optical trap or magnetic trap. Small particles can also be suspended with optical tweezers, using a highly focused laser beam.

    In 2011, CERN scientists were able to preserve antihydrogen for approximately 17 minutes.

    Scientists claim that antimatter is the costliest material to make. In 2006, Gerald Smith estimated $250 million could produce 10 milligrams of positrons (equivalent to $25 billion per gram); in 1999, NASA gave a figure of $62.5 trillion per gram of antihydrogen. This is because production is difficult (only very few antiprotons are produced in reactions in particle accelerators), and because there is higher demand for other uses of particle accelerators. According to CERN, it has cost a few hundred million Swiss francs to produce about 1 billionth of a gram (the amount used so far for particle/antiparticle collisions). In comparison, to produce the first atomic weapon, the cost of the Manhattan Project was estimated at $23 billion with inflation during 2007.

    Several studies funded by the NASA Institute for Advanced Concepts are exploring whether it might be possible to use magnetic scoops to collect the antimatter that occurs naturally in the Van Allen belt of the Earth, and ultimately, the belts of gas giants, like Jupiter, hopefully at a lower cost per gram.

    Matter–antimatter reactions have practical applications in medical imaging, such as positron emission tomography (PET). In positive beta decay, a nuclide loses surplus positive charge by emitting a positron (in the same event, a proton becomes a neutron, and a neutrino is also emitted). Nuclides with surplus positive charge are easily made in a cyclotron and are widely generated for medical use. Antiprotons have also been shown within laboratory experiments to have the potential to treat certain cancers, in a similar method currently used for ion (proton) therapy.

    Antimatter has been considered as a trigger mechanism for nuclear weapons. A major obstacle is the difficulty of producing antimatter in large enough quantities, and there is no evidence that it will ever be feasible. However, the U.S. Air Force funded studies of the physics of antimatter in the Cold War, and began considering its possible use in weapons, not just as a trigger, but as the explosive itself.
  • KarciamaKarciama Posts: 70Member ✭✭
    finally find the magic and train 5/?
  • NickCydenNickCyden Posts: 373Member ✭✭
    I call to the other adventurers, "Hey, what kinds of weapons do you guys want? Give me a weapon type and metal and I'll make it for ya!"

    I then look around at the new environment. "Huh, you know, this place probably has some unique metals I can use."
    I look around to see if I can find anything of interest.

    2/?

    @YosukeHanamura
    @Karciama
    @wadim
    (@ ing a few people so this message isn't completely overlooked)
  • McJaggerMcJagger Posts: 1,268Member ✭✭✭
    I say hello to the box
    I am currently alive, as i was dead.....
    to those who knew me IM BACK! BABY!
    to those who never met me.... hi?
  • BrainstormBrainstorm Posts: 11,223Member ✭✭✭✭✭

    10/15

    Karciama said:

    finally find the magic and train 5/?

    NickCyden said:

    I call to the other adventurers, "Hey, what kinds of weapons do you guys want? Give me a weapon type and metal and I'll make it for ya!"

    I then look around at the new environment. "Huh, you know, this place probably has some unique metals I can use."
    I look around to see if I can find anything of interest.

    2/?

    {TAGx3}
    (@ ing a few people so this message isn't completely overlooked)

    And you find anything you can imagine here, you try thinking of some stuff and you succeed, now there’s a bunch of diamonds lying around.
    McJagger said:

    I say hello to the box

    “Hey there.” Says the box, rolling over the side, which magically turns into its base because it’s a box.
    +10.8M XP


    —�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—�—

    Welcome to the Land of Dreams (??? turns remaining)

    It seems you have appeared in the land of dreams, thanks to one brave and cookielicious individual, a strange land where the sky is light green and the clouds blue, the trees pink, and the dreams come true!
    In this place, you can almost make your dreams true, so even what seems impossible can happen with just a little bit of imagination! Also, you get triple the experience with each move, oh, and, Death despises this place so he can be a little more frustrated around now.
    "Calm your caps, bro." -Brainstorm

    the following link is the best thing that could happen to you: http://forum.dashnet.org/discussions/tagged/brainstormgame

    Currently managing a large-based forum game.. DashNet RPG! Play it now: http://forum.dashnet.org/discussion/15882/dashnet-rpg-dashnets-greatest-forum-game-of-all-time
    Dashnet RPG Pastebin: https://pastebin.com/6301gzzx
  • YosukeHanamuraYosukeHanamura Posts: 952Member, Helpful ✭✭
    11/15 "Hey, can someone help me? It's difficult to charge a beam of pure damage..."
    In modern physics, antimatter is defined as a material composed of the antiparticle (or "partners") to the corresponding particles of ordinary matter.

    In theory, a particle and its anti-particle have the same mass as one another, but opposite electric charge, and other differences in quantum numbers. For example, a proton has positive charge while an antiproton has negative charge. A collision between any particle and its anti-particle partner is known to lead to their mutual annihilation, giving rise to various proportions of intense photons (gamma rays), neutrinos, and sometimes less-massive particle–antiparticle pairs.

    Annihilation usually results in a release of energy that becomes available for heat or work. The amount of the released energy is usually proportional to the total mass of the collided matter and antimatter, in accord with the mass–energy equivalence equation, E = mc2.

    Antimatter particles bind with one another to form antimatter, just as ordinary particles bind to form normal matter. For example, a positron (the antiparticle of the electron) and an antiproton (the antiparticle of the proton) can form an antihydrogen atom. Physical principles indicate that complex antimatter atomic nuclei are possible, as well as anti-atoms corresponding to the known chemical elements.

    There is considerable speculation as to why the observable universe is composed almost entirely of ordinary matter, as opposed to an equal mixture of matter and antimatter. This asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics. The process by which this inequality between matter and antimatter particles developed is called baryogenesis.

    Antimatter in the form of anti-atoms is one of the most difficult materials to produce. Individual antimatter particles, however, are commonly produced by particle accelerators and in some types of radioactive decay. The nuclei of antihelium have been artificially produced with difficulty. These are the most complex anti-nuclei so far observed.

    Formally, antimatter particles can be defined by their negative baryon number or lepton number, while "normal" (non-antimatter) matter particles have a positive baryon or lepton number. These two classes of particles are the antiparticle partners of one another.

    The idea of negative matter appears in past theories of matter that have now been abandoned. Using the once popular vortex theory of gravity, the possibility of matter with negative gravity was discussed by William Hicks in the 1880s. Between the 1880s and the 1890s, Karl Pearson proposed the existence of "squirts" and sinks of the flow of aether. The squirts represented normal matter and the sinks represented negative matter. Pearson's theory required a fourth dimension for the aether to flow from and into.

    The term antimatter was first used by Arthur Schuster in two rather whimsical letters to Nature in 1898, in which he coined the term. He hypothesized antiatoms, as well as whole antimatter solar systems, and discussed the possibility of matter and antimatter annihilating each other. Schuster's ideas were not a serious theoretical proposal, merely speculation, and like the previous ideas, differed from the modern concept of antimatter in that it possessed negative gravity.

    The modern theory of antimatter began in 1928, with a paper by Paul Dirac. Dirac realised that his relativistic version of the Schrödinger wave equation for electrons predicted the possibility of antielectrons. These were discovered by Carl D. Anderson in 1932 and named positrons (a portmanteau of "positive electron"). Although Dirac did not himself use the term antimatter, its use follows on naturally enough from antielectrons, antiprotons, etc. A complete periodic table of antimatter was envisaged by Charles Janet in 1929.

    The Feynman–Stueckelberg interpretation states that antimatter and antiparticles are regular particles traveling backward in time.

    There are compelling theoretical reasons to believe that, aside from the fact that antiparticles have different signs on all charges (such as electric charge and spin), matter and antimatter have exactly the same properties. This means a particle and its corresponding antiparticle must have identical masses and decay lifetimes (if unstable). It also implies that, for example, a star made up of antimatter (an "antistar") will shine just like an ordinary star. This idea was tested experimentally in 2016 by the ALPHA experiment, which measured the transition between the two lowest energy states of antihydrogen. The results, which are identical to that of hydrogen, confirmed the validity of quantum mechanics for antimatter.

    Positrons were reported in November 2008 to have been generated by Lawrence Livermore National Laboratory in larger numbers than by any previous synthetic process. A laser drove electrons through a gold target's nuclei, which caused the incoming electrons to emit energy quanta that decayed into both matter and antimatter. Positrons were detected at a higher rate and in greater density than ever previously detected in a laboratory. Previous experiments made smaller quantities of positrons using lasers and paper-thin targets; however, new simulations showed that short, ultra-intense lasers and millimeter-thick gold are a far more effective source.

    Antimatter cannot be stored in a container made of ordinary matter because antimatter reacts with any matter it touches, annihilating itself and an equal amount of the container. Antimatter in the form of charged particles can be contained by a combination of electric and magnetic fields, in a device called a Penning trap. This device cannot, however, contain antimatter that consists of uncharged particles, for which atomic traps are used. In particular, such a trap may use the dipole moment (electric or magnetic) of the trapped particles. At high vacuum, the matter or antimatter particles can be trapped and cooled with slightly off-resonant laser radiation using a magneto-optical trap or magnetic trap. Small particles can also be suspended with optical tweezers, using a highly focused laser beam.

    In 2011, CERN scientists were able to preserve antihydrogen for approximately 17 minutes.

    Scientists claim that antimatter is the costliest material to make. In 2006, Gerald Smith estimated $250 million could produce 10 milligrams of positrons (equivalent to $25 billion per gram); in 1999, NASA gave a figure of $62.5 trillion per gram of antihydrogen. This is because production is difficult (only very few antiprotons are produced in reactions in particle accelerators), and because there is higher demand for other uses of particle accelerators. According to CERN, it has cost a few hundred million Swiss francs to produce about 1 billionth of a gram (the amount used so far for particle/antiparticle collisions). In comparison, to produce the first atomic weapon, the cost of the Manhattan Project was estimated at $23 billion with inflation during 2007.

    Several studies funded by the NASA Institute for Advanced Concepts are exploring whether it might be possible to use magnetic scoops to collect the antimatter that occurs naturally in the Van Allen belt of the Earth, and ultimately, the belts of gas giants, like Jupiter, hopefully at a lower cost per gram.

    Matter–antimatter reactions have practical applications in medical imaging, such as positron emission tomography (PET). In positive beta decay, a nuclide loses surplus positive charge by emitting a positron (in the same event, a proton becomes a neutron, and a neutrino is also emitted). Nuclides with surplus positive charge are easily made in a cyclotron and are widely generated for medical use. Antiprotons have also been shown within laboratory experiments to have the potential to treat certain cancers, in a similar method currently used for ion (proton) therapy.

    Antimatter has been considered as a trigger mechanism for nuclear weapons. A major obstacle is the difficulty of producing antimatter in large enough quantities, and there is no evidence that it will ever be feasible. However, the U.S. Air Force funded studies of the physics of antimatter in the Cold War, and began considering its possible use in weapons, not just as a trigger, but as the explosive itself.
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