4 ms·
Is there a practical way today to use their findings with stuff we can buy at an hardware store?
by oulipo2 1y ago
Is there a practical way today to use their findings with stuff we can buy at an hardware store?
- taneliv 1y agohttps://news.ycombinator.com/item?id=45209124 https://news.ycombinator.com/item?id=45209124 mentions that simply putting the stained cloth under the sun works.
- delfinom 1y agoBuy some diy flashlight kit. There's an entire community of people that build flashlights for fun and hence a ecosystem of parts. Then put in the strongest 455mm wavelength diode you can find off Digikey that fits the kit parts.
- unwind 1y ago*nm, as in nanometers.
- kragen 1y agoHaha, 455mm! That's 659MHz, which used to be channel 45 for UHF TVs in the US: https://en.m.wikipedia.org/wiki/Television_channel_frequencies https://en.m.wikipedia.org/wiki/Television_channel_frequenci... but has it been reallocated to something else like LTE? https://www.spectrumwiki.com/wiki/display.aspx?f=659000000&limit=on https://www.spectrumwiki.com/wiki/display.aspx?f=659000000&l...
- donperignon 1y agoDon’t buy anything. Use the sun, for the moment it’s free.
- ZeroGravitas 1y agoGiven the bits about UV, using the sun plus a glass window might be better? I think standard glass blocks UVB and car windscreens often block UVA and UVB.
- jama211 1y agoOr existing oxygen based cleaning products. The sun can cause other damage, it’s a balance
- amelius 1y agoYou can buy blue led strips just about everywhere.