[amsat-bb] Torque Coil turns vanish?

Robert Bruninga bruninga at usna.edu
Wed Oct 29 14:18:33 UTC 2014

> I am no rocket scientist, but wouldn't the earths magnetic fields tend
to bias those diodes on as the satellite cuts through them, creating
subtle drag?

Yes and no.  In theory some, but in practice, no.  It takes a coil that is
thousands of meters in length (usually called a "tether") to generate any
appreciable torque.  And since torque goes as the area, then our coil
which is 10,000 times smaller would be 0.000000001 as effective or
something like that. Maybe

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