Physicist and broadcaster Frank Close will be giving the following lecture
at Gresham College on Friday 4th May from 1300 to 1400 BST.

The lecture will be WEBCAST live on the internet and participants will have
the opportunity to ask questions and discuss.  To see details of how to
view please go to:

http://www.gresham.ac.uk

Following the traditions of Gresham College, the lecture is free and all
are welcome.

Antihydrogen First Element of the Antiuniverse

Antimatter sounds like the stuff of sciencefiction, but in fact it is real
and a major tool in medicine, technology and science. This talk is about
antimatter and one of the biggest mysteries in cosmology: why is there no
antimatter in the universe at large? Antimatter would be a wonder fuel, but
for the fact that the universe appears to be lacking in antimatter
reserves.

The first steps are now being taken at CERN to make thousands of atoms of
antihydrogen every hour. While this will never be enough to fuel an
astrocruiser, it may shed light on the mystery of the missing antimatter.