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RPM
07-31-2003, 04:56 PM
Dear Tim,
I did a double-take on your finished project, the torsion fibre magnetometer. I could use some thing similar for research, probably not so sensitive, are they difficult/expensive to make?

Evan
07-31-2003, 05:37 PM
Where is this device to be found? I'm interested because when coronal mass ejections hit the earth's magnetosphere it can deflect the magnetic field by as much as +- 1/2 degree. This often means good auroral activity and I like to take pictures of aurora. It would make a good aurora alarm.