One of my favorite gadgets: UV Flashlight

in #stemgeekscontest2 years ago

I just like to use this on different subjects, mostly to play around. It's great for imaging, to add something interesting for effects in photos and video. It's also useful for demonstrations during homeschool science and art lessons.

These are often listed as a way to detect pet urine. I didn't get it for that specifically, and apparently it might not be the most reliable method, from what I can tell.

Supposedly, it's in the 395nm wavelength, but I haven't personally tested it.





It's actually pretty useful for finding lint on clothing. A lot of times, the lint just lights up bright as day. If it doesn't, then you could probably see the lint without the UV light in the first place.



And of course, there's the just-for-fun aspect of pointing it at various things to see what happens.



I like the handheld version more than the ones you plug into the mains. Obviously, you get a portable light source, but you give up coverage. Also, I think these LED packages aren't the ideal wavelength, but like I said, I haven't tested them. There's a plastic cover over the LEDs, which protects them, but also introduces some scatter that might affect the wavelength.


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Isn't this the stuff you can use to find semen or blood in hotel rooms?

Depending on the wavelength, lots of things can light up.

If you shine it on your light switches, you'll very quickly want to go get something to clean them.

Go get one and a large spray bottle of rubbing alcohol and a rag.

 2 years ago 

Not me.

Only problem is when you point it certain places and you wonder what it is that is glowing against that background...

I got one recently...every time I use it I get the distinct urge to wash things.

Cool light, also I love how you tied it together with STEM.

 2 years ago 

There's a contest I forgot all about until Shane posted his. Blame ... umm ... him.

Great to come back and see a STEM focused frontend :)

 2 years ago 

Yeah, this is a real game-changer.

This seems like some CSI stuff

Posted using Partiko Android

such a flashy gadget XD

😆

@inertia, Cool Gadget and good to know how you use it for the fun aspects. Stay blessed.

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