Are cheap UV detection cards any good?

How do you spot ultraviolet light? A cheap way is UV indication cards but is a cheap way a good way? In this video, I test three different indicators with six different lights.
I also show how it is possible to use the cards to test if your glasses have UV protection. Including potential misreads depending on the light source used.

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#UVdetection #UVprotection

[descuddlebat]

The accidental card burn was honestly such a genius reminder that strong lasers are dangerous, _especially_ when you least expect them to be

[sulfie]

So excited to learn about different UV detection systems! Given how important it can be to block out UV, It's a great question to ask. Cheers for the great content as always!

[Zenodilodon]

Another great video! I found that heat will reset many photo-reactive things. 2 of my videos to watch are " Photochromic Pigmented Color Changing Plastic " and "
Phosphorescent Phenomena Experiments with Different Wavelengths and Temperatures ". Both are great additions to this video. You're also welcome to any raw footage I have for the follow up on this video if you want!

[LtKernelPanic]

Clive tested the same small rectangular card and got the same results. I agree with you it'd be nice to have a card like the bigger one for UVC.

[pioneerAv]

I love the way you say hi, it feels really genuine like you are excited to be here. Makes the whole video more engaging! Love your content!

[smrqdt]

Apparently with self-tinting (photochromic) glasses the process is reversed by (ambient) temperature, maybe it just was the heat introduced by the lasers, that caused the cards to reverse?

[dracrichards]

Gotta love the way you say oh boy when you had to say a word. XD

[hdkdhdodhdnddjfkfjfofkfofo]

That was great! I hope you will keep making videos like these in the future.

[ronsku]

Every video that you make, i'm always interested to watch! 😊

[eugenetswong]

All of these detection methods are new to me. Thank you.

[SodaWithoutSparkles]

I have the same big UV detection card, the Chinese text under it said: "Put the detection area under sunlight, (and) determine the UV intensity by colour intensity"

[stitchfinger]

This is such a cool channel
You're an unbelievably underrated creator, this kind of thing deserves to be on TV

[Laralinda]

I am especially interested in detecting UVB. I live in Germany and half of the year we can't produce Vitamin D in our skin because sunlight has a steep angle in winter so that no UV-B is coming to the ground, even in full sun. It's recommended to go outside in the summer without sunscreen but only for 20 minutes max to get the right amount of Vitamin D, but when is the time? And also, my birds can see UV light and need this special terrarium lamp, but I can't tell if the UV-lamp is worn off (what they do, they are bright, but not emitting UV light anymore after a while)

Writing "UV-filter" on a plastic lid is somewhat like writing "no fat" on a package of gummi bears. 😀Because most of the clear material we use (glass, plastics) are not letting UV through. Even normal window glass is only letting a bit of UVA through. Thats why technical stuff which uses UV light (spectrometers etc.) is so expensive, they need quarz glass as material.

[triedzidono]

I was going to say we live in a fascinating world. but this sort of thing might be happening elsewhere too. Fascinating !

[jansenart]

As far as CCFLs, the reptile bulbs are I believe no different from any other CCFL. One of the two or three major reptile supply companies published their so-called UV lights' spectra, it didn't even agree with their "UVB" marketing.

Could you check into this?

[Aminoac_Ibeglamin]

some translation of the card:
微弱、较弱紫外线不至于伤害人体，无需防护=mild or weak UV does not do a significant harm to human body and there's no need to wear protections.
中等以上紫外线会伤害皮肤、眼睛，必须防护=UV beyond medium level will do harm to skin and eyes so the protections are necessary.
微弱=mild
较弱=weak
中等=medium
较强=strong
极强=ultra strong

将此感应区域置于阳光下通过颜色变化判断紫外线强度=Put the sensing area under sunlight and read the intensity of UV by color change.

[PerfectPilot]

I bet this vids gonna be a great one 😁😁

[superbmediacontentcreator]

Good video and confirms all I have learned about the subject. Burning the test card is the sort of thing I would do too!

[vladthe_cat]

That is the coolest watch I have ever seen!

[piconano]

Thanks you.
You've answered all my questions with this video.