Diffraction and Interference

$Neon Flicker Flame Skull Bulb: no flame but instead emission spectra from excited neon gas due to the presence of a discharge electric current. A dual axis diffraction grating creates a dramatic effect and shows that neon only emits light in specific wavelengths of reds and yellows at AC house voltages. 💀 Happy Halloween! 🎃 ➡️ Follow the link in my profile for info on where to get similar bulbs and other amazing items featured here on @physicsfun #neon #emissionspectra #excitation #physics #ph$

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$Holographic Halloween: put on these spooky specs and bats will suddenly appear around every point source of light! The “lenses” in these glasses are actually transmission holograms but with the image located at the farthest point in the depth of field. Holograms involve the physics of diffraction- notice the bats from the purple lights are smaller, and that there is a bit of orange light in the spectrum of the purple LEDs. Made by @americanpaperoptics3d with many more images available for Hallow$

Holographic Halloween: put on these spooky specs and bats will …

922 views6 days ago

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