i saw program in national geographic "Naked Science : Explosive force" they took the viewers into a secret lab where they showed antimatter of a size of a visible pellet in red colour.it was suspended in air if it touches a matter it will form pure energy .is it true? if so where is that lab? and can any one give details about the lab and antimatter?
2007-02-09 04:56:07 · 12 answers · asked by sankardivya1 2 in Science & Mathematics ➔ Other - Science
Yes. In fact some of the latest medical imaging technology, PET (Positron Emission Tomography) relies on it. In PET, a radioactive dye is injected into your blood stream. The material releases positrons (Anti-electrons) at a predictable rate. The positrons find the nearest electron and they are both annihilated out of existence. When this occurs they release an annihilation vector that can be detected by advanced electronics to use in imaging the human body.
2007-02-09 05:03:26 · answer #1 · answered by Chris J 6 · 2⤊ 0⤋
Antimatter exists, not only in theory but in practice too. Antimatter particles have been observed in laboratory experiments and can be produced naturally as a result of radioactive decay or particle collisions. As an example, the antiparticle of the electron is the positron.
Since antimatter particles are the opposite of matter, when they collide they annihilate each other producing energy and neutrinos.
2007-02-09 16:22:58 · answer #2 · answered by Tenebra98 3 · 1⤊ 0⤋
Antimatter simply refers to particles with equal mass and equal but opposite charge to regular matter. So a positron, for example, is equal in all ways to an electron, but is positively charged. Antimatter will combine with equal but opposite matter and convert almost completely (but not entirely) into energy, thus the need to keep antimatter isolated. I don't know where the lab you refer to specifically is, but anitmatter is routinely created and destroyed (although not in the size you are saying) in cyclotrons and other high-energy particle physics laboratories. Lastly, it wouldn't be "suspended in air", because air itself is matter. It's probably suspended in a vacuum and held in place with extremely powerful electromagnets.
2007-02-09 13:00:58 · answer #3 · answered by Qwyrx 6 · 2⤊ 0⤋
One of the questions raised by theoretical physicists is whether or not there should be equal quantities of matter and and antimatter in the universe. Of course if it were all mixed together it would annihilate but perhaps there are distant galaxies where everything is made of antimatter.
2007-02-09 13:24:02 · answer #4 · answered by rethinker 5 · 0⤊ 0⤋
Yeah. scientists were able to produce a handful of antimatter hydrogen atoms for a few fleeting nanoseconds at CERN. Using this as reference, google for more...
2007-02-09 13:01:16 · answer #5 · answered by ZXSpectrumDX!! 2 · 1⤊ 0⤋
i think Ive read about it somewhere.., Angels and Demons by Dan Brown. he mentioned about the giant lab called CERN. i guess, the antimatter exists. if it doesnt, where did he get the idea from.
2007-02-09 22:08:01 · answer #6 · answered by Lean 1 · 0⤊ 0⤋
For the most comprehensive understanding of matter vs. anitmatter physics, one really MUST watch the original Star Trek series!
2007-02-09 13:00:03 · answer #7 · answered by Zebra4 5 · 0⤊ 2⤋
Yes, it exists, but doesn't last long in our universe. It can be seen in cloud particle generators and measured for it's brief lifetime.
2007-02-09 12:59:01 · answer #8 · answered by Anonymous · 0⤊ 0⤋
It's on channel 26 here, called star trek dude
2007-02-09 12:59:19 · answer #9 · answered by Steelhead 5 · 0⤊ 3⤋
Yes. also known as Dark Matter,
JEDI MATTER!
2007-02-09 14:24:36 · answer #10 · answered by AngryMoose 2 · 0⤊ 1⤋