2020-12-23 (W) Hackaday Summary

Hello, Holograms
By coincidence, I had been researching how to make a holographic image a couple of weeks ago, and then Justin Atkin from The Thought Emporium made one on his YouTube channel. It's an involved process, and he covers it thoroughly, but he also experimented outside the norm by using different color lasers to prove that they don't have to be monochromatic. I decided not to make my own, but now I know where to look if I change my mind.

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