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SUMMARY:Neutrinos - ghost particles of the cosmos - Prof. Frank Close\, Un
 iversity of Oxford
DTSTART:20111109T200000Z
DTEND:20111109T210000Z
UID:TALK33273@talks.cam.ac.uk
CONTACT:David Joseph
DESCRIPTION:Neutrinos are ghostly particles that can travel through the Ea
 rth as easily as a bullet through a bank of fog.They are so shy that half 
 a century after their discovery\, we know less about them than all other f
 orms of matter ever seen. The sun and stars produce vast numbers of them -
  billions of solar neutrinos are passing through your eyeballs unseen as y
 ou read this. If we could see with neutrino eyes\, night would be as brigh
 t as day as solar neutrinos pass up through our beds at night and down on 
 our heads by day. Now we are beginning to seek neutrinos from supernovae\,
  remote galaxies and even from The Big Bang. Their story spans 80 years si
 nce Wolfgang Pauli said "I have predicted a particle that cannot be detect
 ed" and wagered a crate of champagne to that effect. (He paid up 25 years 
 later when the neutrino was detected). Understanding what the neutrino is 
 and why it exists is one of the frontier puzzles in particle physics\; it 
 is the tool of a new way of doing astronomy\, which is beginning right now
 \, and is the hero of a scientific adventure story spanning 80 years.
LOCATION:Plant Sciences Lecture Theatre\, Downing Site
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