Antimatter is literally matter which is the inverse or opposite of matter; particles which have charges opposite of regular matter.
Antimatter was first predicted by P.A.M. Dirac in his theory of quantum mechanics in 1928. Antiparticles were found soon after by Carl Anderson. Since then, research centers such as CERN and Fermilab produce antimatter particles on a daily basis. CERN uses a Proton Synchrotron machine to accelerate protons and then they inject them into the Antiproton Decelerator - a gigantic circular machine with a diameter of 18 km. Here the protons are smashed into a copper or iridium block of metal. The abrupt stop from such an incredible speed (about the speed of light) results in an enormous amount of energy released into a small volume, resulting in extreme temperatures greater than 10,000,000,000,000 Celsius. This enormous amount of heat and energy results in the spontaneous creation of matter-antimatter particles.
When antimatter comes in contact with regular matter - earth, air, whatever - it annihilates immediately in a 100% efficient reaction. A popular misconception is that this antimatter-matter reaction will someday allow antimatter for use as a source of fuel, or power source. Unfortunately, this is an impossible reality. Since antimatter is not found anywhere on Earth naturally (obviously), it must be created. With the equation E=mc2, it is IMPOSSIBLE to have a net gain of matter: the energy required running the accelerators would ALWAYS be more than the energy antimatter produced.
It's true that a quarter gram of antimatter has as much power as the nuclear bomb dropped on Hiroshima. This raises concern as to whether it could eventually be yielded as a terrorist device. Fortunately, it is IMPOSSIBLE to collect and store antimatter at this great of a density, and even if it were possible, with the current technology it would take billions and billions of years to yield that much. In fact, if CERN were to have kept all of the antimatter it ever produced; it would be enough to power a light bulb for about three seconds. Anyways, even with these things aside, it's completely impractical considering how much time, money, and energy is required to create antimatter.
This information is from the CERN official web site.
For more information visit:
www.cern.ch
www.fnal.gov
Antimatter was first predicted by P.A.M. Dirac in his theory of quantum mechanics in 1928. Antiparticles were found soon after by Carl Anderson. Since then, research centers such as CERN and Fermilab produce antimatter particles on a daily basis. CERN uses a Proton Synchrotron machine to accelerate protons and then they inject them into the Antiproton Decelerator - a gigantic circular machine with a diameter of 18 km. Here the protons are smashed into a copper or iridium block of metal. The abrupt stop from such an incredible speed (about the speed of light) results in an enormous amount of energy released into a small volume, resulting in extreme temperatures greater than 10,000,000,000,000 Celsius. This enormous amount of heat and energy results in the spontaneous creation of matter-antimatter particles.
When antimatter comes in contact with regular matter - earth, air, whatever - it annihilates immediately in a 100% efficient reaction. A popular misconception is that this antimatter-matter reaction will someday allow antimatter for use as a source of fuel, or power source. Unfortunately, this is an impossible reality. Since antimatter is not found anywhere on Earth naturally (obviously), it must be created. With the equation E=mc2, it is IMPOSSIBLE to have a net gain of matter: the energy required running the accelerators would ALWAYS be more than the energy antimatter produced.
It's true that a quarter gram of antimatter has as much power as the nuclear bomb dropped on Hiroshima. This raises concern as to whether it could eventually be yielded as a terrorist device. Fortunately, it is IMPOSSIBLE to collect and store antimatter at this great of a density, and even if it were possible, with the current technology it would take billions and billions of years to yield that much. In fact, if CERN were to have kept all of the antimatter it ever produced; it would be enough to power a light bulb for about three seconds. Anyways, even with these things aside, it's completely impractical considering how much time, money, and energy is required to create antimatter.
This information is from the CERN official web site.
For more information visit:
www.cern.ch
www.fnal.gov
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by moltovivace April 1, 2005
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An antimacassar is a small cloth placed over the backs or arms of chairs, or sofas. Historically, the Edwardian male penchant for oiling one's coiffure continued into Victorian times; necessitating the invention of washable decorative fabric blotters. They are still used in luxury rail lines and immaculate Japanese taxis.
The name is derived from the Indian unguent for the hair commonly used in the early 19th century, macassar oil— the poet Byron called it, "thine incomparable oil, Macassar."
They first came to have elaborate patterns, often in matching sets for the various items of parlour furniture; they were either made at home using a variety of techniques such as crochet or tatting, or purchased from drapers.
The name is derived from the Indian unguent for the hair commonly used in the early 19th century, macassar oil— the poet Byron called it, "thine incomparable oil, Macassar."
They first came to have elaborate patterns, often in matching sets for the various items of parlour furniture; they were either made at home using a variety of techniques such as crochet or tatting, or purchased from drapers.
The original antimacassar was often made of white crochet-work, stiffened and uncomfortable, but in the third quarter of the 19th century it became simpler and was made of soft coloured stuffs, usually worked with a simple pattern in tinted wools or silk.
by sherbearcie March 4, 2007
Get the antimacassar mug.doily, especially as used to prevent men's brilliantine (macassar) from staining upholstered furniture
by Paljoey September 28, 2003
Get the antimacassar mug.An "antimissionary" or "counter-missionary" is one who believes that religious-supremacy should be countered in a like manner to other supremacist ideologies. A missionary is one who believes that all different cultures and religions must be dismantled and destroyed in favor of a supreme religion. An antimissionary is one who disagrees, and counters by advocating for toleration and understanding. One of the most vocal antimissionary groups is Jews for Judaism whose name is a parody of the evangelical, religious-supremacist, Christian group Jews for Jesus.
Peter: I really wish antimissionaries would stop persecuting me when I'm evangelizing!
Avi: How are they persecuting you?
Peter: Whenever I advocate for the absolute destruction of other faiths and cultures in favor of my own faith and culture, they always object!
Avi: Maybe you should stop advocating for the destruction of other faiths and cultures, and learn to live in peace...
Peter: Avi! You sound just like an antimissionary! Stop persecuting me by denying my right to persecute others!
Avi: How are they persecuting you?
Peter: Whenever I advocate for the absolute destruction of other faiths and cultures in favor of my own faith and culture, they always object!
Avi: Maybe you should stop advocating for the destruction of other faiths and cultures, and learn to live in peace...
Peter: Avi! You sound just like an antimissionary! Stop persecuting me by denying my right to persecute others!
by Yechiel_HaLusitani January 11, 2016
Get the Antimissionary mug.He is nice, sweet, and a very adorable guy. He can make people happy or laugh in an instant. Sometimes he may rage or be annoyed but, after that he won’t brag about what happend. If there is any girl who would get a chance to meet him or get to go hang out with him your not going to regret it. He is the best friend anyone could have.
by Lillyis_nice101 May 22, 2019
Get the Antimo mug.An Antimarinovore is someone who doesn't eat fish or any other kinds of seafood. Similar to vegaterian but eats all other regular kinds of meats.
Boy trying to hit on pretty girl:"Hey, you wanna go get some sushi with me?"
pretty girl:"Uhm, I don't think so! I am antimarinovore."
Boy trying to hit on pretty girl:"Which would be?"
Pretty girl:" Means I dont eat fish."
pretty girl:"Uhm, I don't think so! I am antimarinovore."
Boy trying to hit on pretty girl:"Which would be?"
Pretty girl:" Means I dont eat fish."
by Lexi Violetta March 9, 2011
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