Entry Two

Scientists at Europe's nuclear research centre have, for the first time, managed to trap

stable "anti-matter" particles.

In the above model, we can see an hydrogen atom and an anti-hydrogen atom.

in the anti-hydrogen atom, we can see a positron orbiting an anti-proton, as

opposed to the hydrogen atom, where we can observe an electron

orbiting a proton.

Most scientists agree that when the Big Bang occured, matter and anti-matter should 

have been produced in equal quantity. Up to now, almost everything we can observe

from the earth is made of matter rather than anti-matter.

This apparent imbalance is named "Baryon asymmetry.

Using the "Alpha experiment", scientists are able to hold antihydrogen particles for

as long as one tenth of a second, giving time for measurement.

So far, 38 antiatoms have been trapped for study.

Scientists are now closer to the truth about anti-matter and to the answer to:

Why so much matter and so few anti-matter?