posy
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Skyline spectrum
🕑 Added 2025-04-26 08:48:57 +0000 UTCI got a sheet of diffraction grating filter and used it te make a spectral filter. This is all still part of the Light Bulbs video I'm working on, which is now about 25 minutes long 😱 I'm making good progress with it, only waiting for one more light bulb 😇
Comments
Posy
Domestic street lights. Indeed it’s very easy this way to see if it’s LED or fluorescent :)
Kalan
These distinct green, blue and violet spectral lines are apparently unique to fluorescent lights. Where does this light come from?
Andrew Carey
That's spectacular!
