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In the articles linked below, Gold from Cornell claims solar sailing won't
work essentially because it would violate the 2nd law of thermodynamics.
An ideal radiometer *would*
turn in the correct (radiation pressure) direction for low-friction vanes in
an ultrahigh vacuum. Apparently done in 1901 using a fiber. [Lebedew, P.N.,
"Untersuchungen uber die Druckkrafte des Lichtes," Annalen der Physik, No.
11, pp. 433-458 (1901). ]
Comments? Carl
-----
Carl E. Mungan, Asst. Prof. of Physics 410-293-6680 (O) -3729 (F)
U.S. Naval Academy, Stop 9C, Annapolis, MD 21402-5040
mailto:mungan@usna.edu http://usna.edu/Users/physics/mungan/