See how olive oil and magnets can control the brightness of light via the Faraday effect.
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Measure Verdet constant of olive oil: http://www.sestindia.org/wp-content/uploads/2013/12/Volume-2Number-3PP-362-368.pdf
Plastic film polarizers: http://www.apioptics.com/linear-polarizers-spec.html
Faraday effect: https://en.wikipedia.org/wiki/Faraday_effect
That's intriguing - and also rather beautiful. Thank you.
ReplyDeleteDid you test how fast the polarization shift takes effect when the field is established? It looks like you could make a fairly useful modulator at least to a few kHz just by driving coils with large transistors. Regards, Christie Black
Thanks! The effect occurs as quickly as the magnetic field can be established. In this case, it's the inductance of the coil that will limit speed. Even with this large coil, modulating in the KHz should certainly be possible. -Ben
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