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00:05:00

Light Beam

by Jonathan Hare
Light Beam
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 1944 views
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Light is reflected off a flexible shiny surface fixed to the end of a plastic tube. When one speaks into the tubes sound vibrations pass down the tube and make the surface vibrate. The reflected light is therefore sent off from the surface in a con....

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00:28:00

Extremely Fast Chemical Reactions

by Manfred Eigen
Extremely Fast Chemical Reactions
for 18-22 and upwards,
Interviews | 18-22 and upwards | 15 years ago | 2325 views
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This interview starts with Eigen (Nobel Prize in Chemistry, 1967) talking about his early work for his PhD thesis on fast reactions and measuring the specific heat of heavy water. He says that light water had already been measured in classical chemis....

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