Invisible light will make 'Gold of the North' visible?

Can invisible UV light make amber gemstones easier to find? Sounds a bit weird but let us test if it really works. Including testing if some inexpensive UV safety glasses will protect our eyes when using high-intensity ultraviolet flashlights. Time for a journey into the world of fluorescence...

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#Amber #Ultraviolet #Brainiac75

[Muonium]

Some recommendations: Many kinds of amber are not merely fluorescent but also phosphorescent. You can check by closing your eyes while the light is on and opening as soon as you turn it off. Putting the sample in the freezer, or better yet cooling it with liquid nitrogen will dramatically extend the phosphorescent glow lifetime by leaving the unpaired electrons in the excited triplet state stuck there without the availability to absorb thermal kinetic energy to flip the spin and allow the electron to relax back to the ground state. Also, if you are really into this stuff I HIGHLY recommend getting a quality 365nm true UV LED with a proper zwb2 filter to look for fluorescence. The 400nm LEDs here just totally wash everything out in purple, but the filtered 365 light is DRAMATICALLY better at viewing everything. A good pair of UVEX clear UV blocking goggles would also let you see the true colors of fluorescent things unlike the yellow goggles.

[OfficiallySnek]

I guess I should check all of my rocks that I thought could be amber

[Randrew]

The sodalite sample at 7:36 is really beautiful when fluorescing under UV! Fascinating.

[cyrex]

The word for electron and electricity comes from the latan word for amber, electrum. People in ancient times used it as a bearing material with wooden looms and got shocked by the static electricity produced. Got that gem from Tim Hunken's great series - The Secret Life of Machines.

[lukasvondaheim]

And once again a masterpiece of science video!

I just want to thank you for your efforts put into those videos. Those videos are the reasons why my interest in science sparked again. I love it and your content!
Please stay safe and healthy in those uncertain times

[dhawthorne]

That broad cast, lower power light is great for avoiding/catching scorpions.

I'd also like to point out that that "tranparent rock" appears to be Citrine. It is a quartz crystal that has a metallic contaminate that turns it yellow to orange and is quite prized as an alternative to Topaz.

[Quickened]

The sales of uv flashlights just went up! Here in Texas, we use them to hunt scorpions... It's actually fascinating to see just what fluoresces around your house at night. Just be sure to wear eye protection, because it's a little addictive, and you might spend a couple hours staring at things that glow. It all started with blacklight posters from the 70's... 😵‍💫

[bearox]

7:48 This is why I study science and why I love understanding everything from the world around me, I got goosebumps just by watching this nature´s gift

[benmcreynolds]

I played with my rock collection and I was blown away to find that I had a good amount of florescent rocks and then had fun photographing them as a group on my table. It's so facinating to me. Nature is awesome

[marcfruchtman]

Very Cool. Thank you for the great explanation on how Amber Fluoresces. Also, enjoyed how you tested the glasses.

[davidcovington]

Unusual. The UV lights and the anti-UV safety glasses were as represented.

Would an IR detector also notice the output from amber being irradiated with UV? You mentioned the translational vibrations between outer orbitals.

Tx for the northern gold lesson!

[OleJanssen]

These lamps are also a good way to detect fraud. When I got one of these, I immediately went ahead and tested them on a few amber souvenirs that I had laying around. As it turns out, only about half of them actually were fluorescent.

The worst one was an amber necklace which my great-grandmother once bought for over a thousand Deutsche Mark. As it turns out, that was some expensive plastic.

[ProtoMan]

Wow, you have such a calm voice and explain really well! Your videos are super interesting! Thank you :)

[slonkazoid]

Been a long time viewer, love your videos.

[StormBurnX]

I need to get a spectrum analysis tool, I have a UV laser and a UV LED flashlight. They both make ravewear and neon things fluoresce, but the laser diode does not cause scorpions to light up, while the flashlight does

Sorry for my spelling :)

[dinohunter]

I still love your unique way of explaining after years of following you. Thanks!

[sulfie]

A Geological video? Your depths of science never cease to amaze! Practical and Enjoyable!

[vojtem]

you sound super nice and your fun to watch keep up these videos! <3

[TheExplosiveGuy]

Have you used one of the filtered UV flashlights? They emit 365nm UV and have black lens filters that block all visible light generated. The UVBeast is an excellent choice, it's about $40 and puts out 20 watts of 365nm UV, it heats up anything it's pointed at it is so bright.

[nakfan]

Thanks for making these video. They are a joy to watch 👍