The History of Antimatter

A short video by Cern from Jan 2000 regarding the history of antimatter. Source- http://cdsweb.cern.ch/collection/Video%20Movies

Category:

Science & Technology

Tags:

• antimatter
• cern
• particle
• physics
• science
• accelerator
• antiproton
• positron
• antineutron

[Firemanrob87]

This stuff costs 300 billion dollars per milligram, and would cost 100 quadrillion dollars and 100 billion years to make for a gram with today's technology. SO this is not possible for terrorist, nor can they transport the stuff. Also you need a particle accelerator to produce it (~4 mi in Circ.).

[JCo62484]

Yeah that's where I first heard about "anti- matter" and it got me interested in the whole concept. It really is a good book.

[StrikaAmaru]

@E65Hawk There are anti-protons trapped in the Van Allen belts, and around Saturn; they're produced by high-energy particles collisions. About a year ago, I found a PDF describing how an antimatter trap could be built to mine it...

But it was several km. across, even if it was mostly empty space, so not many chances of seeing one built.

[E65Hawk]

@chillichomper Not, yet! wait 10 or 20 years. We'll figure it out

[barito7]

well....welll....well....CARRY ON then

[chillichomper]

B.S. You can't create enough antimatter to do anything useful with it. This might be a blessing in disguise because we'd probably blow ourselves up!

[james0music]

the accelerators operate within a vaccum, so when the anti-particles are produced - there is no air about for them to collide with an "cancel out" with.

[yiotos]

wouldn't the particals die from the atoms in the air?

[shamsael]

It's not just charge, it's also spin. Neutron is spin 1/2, antineutron is spin 2.

[jesterlady]

except for the imbalance between matter and antimatter in the universe ^_^

[jesterlady]

This is the answer: Protons and neutrons get their charges from elementary particles called quarks, which are only found within them. In Anti-Neutrons, the antiquarks, though they still equal out to be neutral, have the opposite charge than each would on a neutron.

[howieqd]

i think it is not only the charge that's making them "anti----" but it's their behavior as well. Even though neutron has no charge, its mirror image (antineutron) bonds with antiproton to make its nucleus making its behavior different from neutron.