can someone tell me how mach antimatter the us has created so far?
365184
tonnes and tonnes of it.  everything is antimatter because it is matter because on the spectram of "matter"  antimatter is matter.  just like wattter can get soo cold that it burns you (ice burn/frostbite)  or soo hot that it is cold all matter is anti antimatter which in turn is antimatter
738074
If you had the antimatter and could control it, yes any energy releasinig reaction could power a vehicle.  Antimatter exists, but not in any useful quantities in nature.  Most of what we know of antimatter is from studying the tiny (and by tiny I mean nanograms) amounts we've made in various particle accelerators.  You would also need to overcome the storage implications - seeing as matter and antimatter annihilate upon contact releasing energy, the antimatter could never touch its containment unit.  This is usually done by keeping the antimatter in a helix unit stored as close to 0 K as possible, in a very powerful magnetic field to keep it in the center of the unit.  \n\nThe other implications you would have to overcome is to harness the energy it released for practical application.  When matter and antimatter annihilate they release a gamma wave, which will pass through most materials without even interacting with them.  You would need to capture this, and convert it to heat, and from there you could convert the heat to mechanical motion.  \n\nIf it were a spacecraft and you didnt need to worry about the radiation left behind, you could use the energy produced to accelerate particles which would act as your thrust (similar to an ion drive).
480431
Yes. Part of the idea of antimatter is in some equations containing squares, to solve for that variable you must have a positive and negative answer. Therefore an opposite or anti- thing must exist. Antimatter in this case. So if the E=mc^2 works for matter than it should work for anti-matter.\n\nHowever, as the theory of antimatter states - rather than be like matter where something travelling the speed of light can produce matter and mass, the antimatter will become energy and destroy mass when it comes in contact with matter. \n\nHope that makes some sense. Antimatter is an annoying thing.
595584
the spontaneous creation and destruction of particles goes on all around us all the time.  but antimatter does not seem to be part of that process in our "timeframe" and it could be that if time is viewed as a dimension only we will find the antimatter at another point on that dimension.  If antimatter did appear annihilation would occur on a vast scale.  I believe that matter and antimatter have a weak repulsing force to each other, or utterly neutral, as the antimatter has a "reverse gravity" (perhaps because it's moving backwards on the time dimension).\n\nOur Universe, all the parts that count to us, is all matter.  The antimatter resides next to us, but not in our universe.
716767
antimatter cant rely be used for anything,it is just a scientific oddity that is studied by smarter people.the two property's of antimatter i know of is that it has negative gravity(but it cant be used to mack things levitate)and that it will explode with a extrema force in some conditions.so the only possibly practical use would be bomb making but we don't have the necessary tech.
228704
try looking up "nuclear" energy..you will find more info i am sure.
542057
Antimatter is as real as matter itself, just ask particle physicists\n\nThe reason we do not have much of it around us is that it annihilates with matter, so our world now is matter dominant.
1076179
Wow.  Three responders came up with the same smat*** joke.\n\nCold fusion has been performed in laboratory settings, in a reactor.  So yes, it has been made.  There are no large-scale operations.  That are public.
811846
There are many ways to create anti-matter. Here are some natural sub-atomic processes that can produce anti-matter:\n\n γ →  e+  +  e-  (gamma ray becomes positron/electron pair)\n\nC(11) → B(11) + e+ + Ve (Carbon-11 becomes Boron-11 plus a positron and a neutrino Ve - this is commonly known as beta plus decay)\n\np + A →  2p + p- + A (cosmic ray protons collide with atomic nuclei A and produce additional proton/anti-proton pair)\n\nπ+ →  e+ + Ve (pi meson decays into positron and electron neutrino)\n\nu+ → e+ + Ve + Vu- (antimuons decay to a positron, an electron-neutrino, and a muon-antineutrino)\n\nSo basically, we can either collect anti-matter via natural sub-atomic particle decay processes or through high-energy particle collisions (usually in high-energy particle accelerators like CERN). The method used in anti-matter confinement is the use of very strong magnetic fields called magnetic bottles which are usually in the shape of torus ring, and the anti-matter is propelled to move in circles inside the torus continuously.
475255
It doesn't. Only when it comes in contact with "regular" matter does it produce energy.\n\nAntimatter functions exactly like "normal" matter except everything is the opposite. When matter and antimatter touch each other, they release an amazing amount of energy (waaay more than nuclear fusion) and a slew of subatomic particles.
743062
try here:http://rds.yahoo.com/_ylt=A0geuuzuP1dFB2IBeMRXNyoA;_ylu=X3oDMTE2ZGhvZmh2BGNvbG8DZQRsA1dTMQRwb3MDMQRzZWMDc3IEdnRpZANERlg1XzMw/SIG=1bt3hf273/EXP=1163432302/**http%3a//rdre1.yahoo.com/click%3fu=http%3a//particleadventure.org/particleadventure/frameless/chart.html%26y=04CFC1D3DDD1DC47D5%26i=680%26c=9107%26q=02%255ESSHPM%255BL7o%7emkv%257Csz%253Frp%257Bzs%253F%257Bv%7exm%7erl6%26e=utf-8%26r=0%26d=wow%7eDFX5-en-us%26n=VA74G7I451BKA734%26s=11%26t=%26m=45573FEF%26o=0159C8E03B780E166C%26x=05AD451CF8B3C559781873C67B786DCD32\nhttp://rds.yahoo.com/_ylt=A0geuuzuP1dFB2IBicRXNyoA;_ylu=X3oDMTE2ZjFtMzg2BGNvbG8DZQRsA1dTMQRwb3MDNARzZWMDc3IEdnRpZANERlg1XzMw/SIG=12qg3t3lt/EXP=1163432302/**http%3a//teachers.web.cern.ch/teachers/archiv/HST2002/feynman/index.html\nhttp://rds.yahoo.com/_ylt=A0geuuzuP1dFB2IBlcRXNyoA;_ylu=X3oDMTE2anNnbmViBGNvbG8DZQRsA1dTMQRwb3MDNgRzZWMDc3IEdnRpZANERlg1XzMw/SIG=12t8folf5/EXP=1163432302/**http%3a//www.jburroughs.org/science/mschober/freeparticle/forcediagrams.htm\nhttp://rds.yahoo.com/_ylt=A0geuuzuP1dFB2IBrcRXNyoA;_ylu=X3oDMTE3am02cWRoBGNvbG8DZQRsA1dTMQRwb3MDMTAEc2VjA3NyBHZ0aWQDREZYNV8zMA--/SIG=1cam86e80/EXP=1163432302/**http%3a//rdre1.yahoo.com/click%3fu=http%3a//www.osti.gov/energycitations/product.biblio.jsp%253Fosti_id%253D20571252%26y=04C399C287E36B223B%26i=680%26c=10411%26q=02%255ESSHPM%255BL7o%7emkv%257Csz%253Frp%257Bzs%253F%257Bv%7exm%7erl6%26e=utf-8%26r=9%26d=wow%7eDFX5-en-us%26n=VA74G7I451BKA734%26s=11%26t=%26m=45573FEF%26o=01963EDDD409DD925F%26x=05F89BC330F0D06C36801525F3512062FB\nhttp://rds.yahoo.com/_ylt=A0geuqdRQFdFjQgAaRZXNyoA;_ylu=X3oDMTE3ZDRjMWRzBGNvbG8DZQRsA1dTMQRwb3MDMTgEc2VjA3NyBHZ0aWQDREZYNV8zMA--/SIG=11n06kv0t/EXP=1163432401/**http%3a//arxiv.org/abs/hep-ph/0510416\nhttp://rds.yahoo.com/_ylt=A0geuqdRQFdFjQgAdBZXNyoA;_ylu=X3oDMTE3cnZjM25nBGNvbG8DZQRsA1dTMQRwb3MDMjAEc2VjA3NyBHZ0aWQDREZYNV8zMA--/SIG=12dtpb9ge/EXP=1163432401/**http%3a//www-sldnt.slac.stanford.edu/alr/standard_model.htm
470230
Many people have, in every single nuclear reaction, whether in power plants or detonated nuclear weapons. Nuclear binding energy is generated by mass converted to energy which holds nucleons together. In nuclear reactions differences in binding energy between the reactants and products in atoms is released as light, thought not necessarily visible light.\n\nLight is also produced in particle-antiparticle annihialition. If an electron and positron collide, they annihialate each other and release 2 photon's of equal energy and momentum as the 2 original particles.\n\nIt is also possible to create particle-antiparticle pairs from photons fired into strong magnetic fields.
1169922
the last I heard it was about 4300, it may be more now. NASA better update their data
589672
Good answer Azreal! Scientists in Australia have actually transported light matter across the laboratory in the last year though....hey its a start!
1032044
I know someone in this research area. Info can be found at...\n\nhttp://www.fusionpower.org/\n\nI'd like to say that within 100 years some kind of clean(er) energy will be produced at the atomic level.\n\nBut the hurdles associated with Fusion, really do seem insurmountable at this time.
177569
All of the mass of the respective particles is converted into energy (radiation) according to E=MC^2. Find the mass of the particle you are interested in like a proton. The antiparticle (antiproton) is the same mass. \nA proton weighs 1.672622089*10^-27 kg (M)\nAn antiproton weighs the same.\nThe speed of light in vacuum (C) is 2.9979*10^8 m/s\nThe answer (E) is in J or W. I´m sure you can take it from here. \nYou might want to consider the much smaller energy unit of electronvolt (eV) when working with energy levels for individual particles. 1 eV = 1.602*10^-19 J\n\nA neutron (and an antineutron) weighs 1.674928579*10^-27 kg\nAn electron (and positron) weighs 9.109390332*10^-31 kg\nKnock your self out!
1081678
About 75 active warheads and about 115 Total.\n\nThis maynot be the latest count.Got the info from a site given in the source column