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CATEGORIES:Stokes Society\, Pembroke College
SUMMARY:Comets as Solar Explorers  - Professor Monica Gra
 dy
DTSTART;TZID=Europe/London:20150304T210000
DTEND;TZID=Europe/London:20150304T220000
UID:TALK58281AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/58281
DESCRIPTION:"Professor Monica Grady is a leading British space
  scientist\, primarily known for her work on meteo
 rites. She is currently Professor of Planetary and
  Space Science at the Open University. She was par
 t of the team that developed the Ptolemy instrumen
 t on Philae\, which seeks to explore the relations
 hip between water ice on comets and the Earth's oc
 eans and to study the nature of organic material o
 n the comet and thus investigate the relationship 
 with similar materials from other Solar System bod
 ies. The instrument combines gas chromatography an
 d mass spectrometry to measure the isotope ratios 
 of Hydrogen\, Carbon\, Nitrogen and Oxygen. The ra
 tios of heavy to light isotopes (e.g. 18O/16O in H
 2O) act as fingerprints to determine where a sampl
 e of water came from."
LOCATION:Nihon Room\, Pembroke College
CONTACT:Patrick Szmucer
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