Who would want to have millions of viruses and bacteria scattered around their bathroom? Not me! By a happy chance, it looks like there is a simple trick to check for microbes, and all you need is a phone with a flashlight and a bit of fake science. Viral videos claim that everyone can make blacklight by just colouring a flashlight with Sharpies. Blacklight is invisible to the human eye. But it can be absorbed by certain substances that contain phosphors, which convert ultraviolet light into glowing light. Body fluids are those substances as well as neon markers. This "DIY blacklight" does make neon markers glow in the dark, but just a little bit and only when you are very close. I could not make any microbes glow with it at all. When I used a real blacklight torch (you can see that clip at the very beginning of my video), all my marks were brightly glowing in the dark. All in all, this video includes a fake blacklight torch and fake viruses and bacteria.
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Негізгі бет This Hack Turns Any Phone into a Black Light to Spot Microbes | Fake Science
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