Tag Archives: right angles

Argon Blue Laser with Galvanometers

Argon multi-line blue laser driven by galvanometers

The “Beam me up, Scottie” effect with an argon blue laser.
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Magnetohydrodynamics

Red magnetohydrodynamic boat

Magnetohydrodynamics in a model boat

A model boat demonstrates magnetohydrodynamics. In one of its forms it gives electrical propulsion with no moving parts by applying an electric current to a fluid in a magnetic field generating thrust.  This applies to any conductive fluid including water (preferably salt), liquid metal or plasma. Here I am demonstrating the principle with water.
“Continue reading”  for further explanations and using powers up to 1 kW. 8 photos and links..
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Laser Galvanometers 2D

A Lissajous figure with frequencies in a ratio of 2:3 formed by different signals to two laser galvanometers

I arranged two mirror galvanometers to give two dimensional control of a 10mW HeNe laser beam. “Continue reading” for further information and another 9 photos. Continue reading