Supercharging Glow in the Dark Objects with UV light 😎🔦

What is UV light? In this video, Josh shows why UV light charges up glow in the dark objects better than any other color light!
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[@LeafBro_]

Even with knowing and understanding the electromagnetic spectrum, I still find it amazing that stuff like this can happen.

[@TheScienceClassroom]

Agreed!😀

[@Windows_VistaSP2]

How to make it supercharged:
Nuke and make gamma rays charge it

[@TheScienceClassroom]

😆

[@LLLadySSS]

I had a little glow in the dark ghost and I remember discovering that when I took a picture with my old camera with the flashlight, it glowed so much! Then went back to normal. Such a cool discovery. I was maybe 9 don't remember precisely

[@TheScienceClassroom]

That's so cool! Thanks for sharing! 😃

[@thegreatbluehippo]

Amazing explanation

[@TheScienceClassroom]

😀

[@TrimoFox]

The thing in the spider that makes it glow is phosphors which glow under ultraviolet rays which are just below the visible spectrum, the uv light is emitting a small amount of purple light since the light just passed the threshold between uv and visible light

[@sirleroyale4412]

We used to just sit our glow toys in the window

[@TheScienceClassroom]

That works! 😎

[@cocogamerlol5854]

Red is always considered the lowest as and purple/blue as the highest, i havent learned why their the highest but i do know that their electromagnetic wave does not need medium to travel

[@TheScienceClassroom]

Yes, this is true. The reason is that red has the longest wavelength resulting in less energy. Blue/violet has the shortest wavelength resulting in the most energy.

[@akashazad9191]

Really nice science experiment. Keep up the good work.👍 I was searching for why people are able to see UV light? Aren't we supposed to only see visible light? Whats the science behind it?

[@TheScienceClassroom]

The UV flashlights you can buy in stores are usually a wavelength of 395 nm, which is just outside of the visible light and into the UV range (700-400nm). Since light is a spectrum there's probably blending of visible and UV since they are so close

[@markland136]

What is the best uv wave for glow in the dark.. 365nm or 395nm

[@TheScienceClassroom]

I'm not actually sure, I haven't tested. But, I think 365 might be a bit better because it's closer to visible

[@faizelali6070]

Good job

[@TheScienceClassroom]

😃💯

[@bunniesontheinternet]

Can i make objects glow in the dark with UV light?

[@Smartahh-SouthWC]

my clank valley is also doing the same thing so it wont hit ME

[@fritcheranario4646]

Where can you buy UV light?

[@TheScienceClassroom]

I bought mine from Amazon

[@yonisapir6270]

How long does a single charge usually last?

[@TheScienceClassroom]

I haven't timed it but it's not long.. probably just a few minutes

[@yonisapir6270]

@@TheScienceClassroom Cool, thanks

[@mikeoxmall69420]

>use gamma ray light
>flashbang yourself

[@TheScienceClassroom]

😬

[@jaredb9523]

So Infrared would be passed red? Opposite of violet?

[@TheScienceClassroom]

Yes!

[@mdlabib8688]

How long it will stay lighten?

[@TheScienceClassroom]

About 10 minutes

[@HydraVR2.0]

1k like🎉

[@TheScienceClassroom]

Thanks!! 🤗

[@dragonleonn9530]

whats the spider made from

[@TheScienceClassroom]

Glow-in-the-dark plastic

[@coolacrocanthosaurus]

​@@TheScienceClassroomPhosphorus?

[@noexcusesYT1]

Is this a real spider?

[@TheScienceClassroom]

No, but that would be awesome if there was a real species of spider that glowed like this! 😀

[@thegreatbluehippo]

@@TheScienceClassroomI think they do like crab spider under ultraviolet light

[@ockertoustesizem1234]

the spiders are paid actors

[@user-gs8rx1zy5b]

OMG THE SPIDER IS DISGUSTING

[@TheScienceClassroom]

🕷️😬