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Some cool yellow things from my Faraday rotation project.  The Terbium-doped glass rod is probably the coolest.
Awesome. The third and fourth images look like the ghost trap from Ghostbusters.

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Bio: I make, therefore I am. also on https://hackaday.io/dylanbleier
More by dyly:Cool Yellow Stuff! HeNe laser (632.8 nm) Lasers, etc. 
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