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SUMMARY:When water does not boil at the boiling point - Prof. Hasok Chang 
 (University of Cambridge)
DTSTART:20110223T210000Z
DTEND:20110223T220000Z
UID:TALK29934@talks.cam.ac.uk
CONTACT:David Newgas
DESCRIPTION:Around 1800\, many reputable scientists reported significant v
 ariations in the temperature of pure water boiling under normal atmospheri
 c pressure. The reported variations included a difference of over 1°C bet
 ween boiling in metallic and glass vessels (Gay-Lussac)\, and superheating
  up to 112°C on extracting dissolved air out of water (De Luc). I have co
 nfirmed most of these observations in my own experiments\, which will be d
 escribed with video footage. Water boils at the "boiling point" only under
  very particular circumstances\, and our common-sense intuition about the 
 fixedness of the boiling point is only sustained by our limited experience
 . The widespread ignorance of such basic and easily-confirmed facts tells 
 us something significant about the nature of scientific research and educa
 tion.
LOCATION:Nihon Room\, Pembroke College
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