4 ms·
(I didn't understand the math in the paper) Would this mean that a rotating body in space would eventually slow down? In other words, amplifying EM radiation d
by bloopernova 2y ago
(I didn't understand the math in the paper)
Would this mean that a rotating body in space would eventually slow down? In other words, amplifying EM radiation draws energy from angular momentum?
- dvh 2y agoThere's a similar effect https://en.wikipedia.org/wiki/Yarkovsky_effect https://en.wikipedia.org/wiki/Yarkovsky_effect
- javajosh 2y agoCool. Also may be useful to read Zel'dovich's second paper on the phenomena. http://jetp.ras.ru/cgi-bin/dn/e_035_06_1085.pdf http://jetp.ras.ru/cgi-bin/dn/e_035_06_1085.pdf Interestingly, in his paragraph about previous work, he did not mention Yarkovsky: "According to a remark by P. L. Kapitza, the effect is analogous to amplification of sound by reflection from a resting-medium boundary that moves with supersonic velocity... In the case of plasma waves, a similar effect was considered recently by Ostrovskil. Mention can also be made of earlier studies dealing with the motion of a conducting liquid in a resonator or the motion of carriers in the interior of an elastic piezoelectric or over its surface."
- m463 2y agoreminds me of: https://en.wikipedia.org/wiki/Crookes_radiometer https://en.wikipedia.org/wiki/Crookes_radiometer
- ptsneves 2y agoOn a wiki rabbit hole from that link to the Apophis asteroid, to rage and rage 2 video game plots.
- dekhn 2y agoall such rabbit holes lead either to SCP or tvtropes.org
- ko27 2y agoYes, it probably even works in total isolation from any radiation, because it can interact with quantum vacuum and give off energy to create photons. That's the next thing they are trying to prove.