A Crookes radiometer is driven by a thermal gas effect, and not "light pressure" as often thought. Ben Krasnow demonstrates the radiometer in a vacuum chamber and explain its optimal running pressure.
Sunday, 16 November 2014
Thursday, 13 November 2014
Brian Cox visits the world's biggest vacuum chamber
Human Universe: Episode 4 Preview - BBC Two
Programme website: http://www.bbc.co.uk/programmes/p0276q28
Brian Cox visits NASA’s Space Power Facility in Ohio to see what happens when a bowling ball and a feather are dropped together under the conditions of outer space.
Programme website: http://www.bbc.co.uk/programmes/p0276q28
Brian Cox visits NASA’s Space Power Facility in Ohio to see what happens when a bowling ball and a feather are dropped together under the conditions of outer space.
Friday, 7 November 2014
Nima Arkani-Hamed Public Lecture: Quantum Mechanics and Spacetime in the 21st Century
Dr. Nima Arkani-Hamed (Perimeter Institute and Institute for Advanced Study) delivers the second lecture of the 2014/15 Perimeter Institute Public Lecture Series, in Waterloo, Ontario, Canada.
Held at Perimeter Institute and webcast live worldwide on Nov. 6, 2014, Arkani-Hamed's lecture explores the exciting concepts of quantum mechanics and spacetime, and how our evolving understanding of their importance in fundamental physics will shape the field in the 21st Century.
Perimeter Institute Public Lectures are held in the first week of each month.
More information on Perimeter Public Lectures: http://ow.ly/DCYPc
Held at Perimeter Institute and webcast live worldwide on Nov. 6, 2014, Arkani-Hamed's lecture explores the exciting concepts of quantum mechanics and spacetime, and how our evolving understanding of their importance in fundamental physics will shape the field in the 21st Century.
Perimeter Institute Public Lectures are held in the first week of each month.
More information on Perimeter Public Lectures: http://ow.ly/DCYPc
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