4 ms·

Don’t miss the black flame! https://sciencenotes.org/how-to-make-black-fire/ https://sciencenotes.org/how-to-make-black-fire/

• huhtenberg 2y ago
  Yeah, that's cheating :)
• croon 2y ago
  That one we'd like to do at home, if I could get my hands on an LPS lamp, there's a lot of wrongly marked bulbs out there, afaict.
  • sva_ 2y ago
    Just look in a growing shop. Isn't that what they use?
    • genter 2y ago
      No, they used HPS. Although now replaced by LED.
      • sva_ 2y ago
        Ah, fair enough. Doesn't seem so hard to find a legit one though. Searching for Philips SOX gets me a lot of results for example.
• hi_hi 2y ago
  Very cool. Reminded me of this post about Sodium Vapour Lights used in old school special effects chroma keying. https://news.ycombinator.com/item?id=39962615 https://news.ycombinator.com/item?id=39962615