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SUMMARY:“The Evolution of High-Frequency Radio Astronomy” - Prof Richa
 rd Hills\, Cavendish Astrophysics
DTSTART:20130123T160000Z
DTEND:20130123T170000Z
UID:TALK42601@talks.cam.ac.uk
CONTACT:Leona Hope-Coles
DESCRIPTION: In its first phases radio astronomy was restricted to frequen
 cies of about 30 MHz to 3 GHz (wavelengths of roughly 10 meters down to 0.
 1 meters)\, but since the 1960’s the ‘high frontier’ of the field ha
 s moved successively to tens\, then hundreds and now thousands of GHz\, i.
 e. to cover the millimetre and sub-millimetre wavebands.  This advance has
  been largely driven by technological developments – for example in the 
 design of antennas and receivers – and by the opening up of suitable obs
 erving sites.  At the same time the scale of these activities has expanded
  from the level of individual efforts to that of worldwide collaborations.
   The lecture will outline the key steps in this evolution and describe so
 me of the dramatic scientific discoveries that have followed.
LOCATION:Pippard Lecture Theatre\, Cavendish Laboratory
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