amazing very informative video thanks!!

That crystal at the end is fabulous!

4:37 ALIENS!! Seriously though, I wonder if they're some sort of plant matter, like a seed with attached fibers which help it disperse.

they should 3d print a concrete dome over chernobyl. that should last forever if they do it right.

Nearly all organic molecules over a certain weight fluoresce under UV. I learned only a couple years ago that it's a very reliable test for oil residue on machined metal parts. But that unfortunately also means that epoxy, shellac, varnish, and urethane also fluoresce, as do dyes... so you really still need to have it in your hand so you can apply the more traditional thermal/electrical tests and be sure. If you're looking in the wild, and not on eBay.. it could be a handy shortcut.

👍

Excellent guide to testing all of that Ebay "Amber" LOL Thank you for sharing.

W video

Does it also emit light when you crush it? Or when you dissolve it in water?

Fascinating idea!

Educational and crafty, I love it!

Wow! This is so interesting! Had no clue this existed! Great channel, keep up the good work!

I suppose since nearly all table salts contain KI to help the populace meet nutritional requirements all salt is radioactive. Only thing about the back ground is make it flat on to the viewer, the distracting part is trying to figure the perspective.

Riveting. Of course it helps that I did a Master's thesis on stability of trapped electrons in rare gas solids (similar to ionic solids). No youtube back then. Had to read on the topic.

Excellent video! Re: your invitation for ideas, the first one I had was using it for some inverse application for example what substances can become irradiated to then become transparent? 🤔😃

hmmm now I desperately need someone to smelt an iron ingot from Himalayan pink salt

Yer fun. From yr Victorian/ steampunk props to your London (?) accent, I approve whole heartedly. Subscribed.

Interesting topic, never seen that before. The backgrounds were a bit distracting, but the rest of the video was very informative

Great video! You probably already know this but your smoke detector contains Americium-241 and therefore a few atoms of it's decay products at any given time. It probably is against the spirit of your collection but by just throwing a detector in the box you can also cross Americium, Neptunium, Protactinium, Francium, Radon and sometimes Astatine off the list :)

I suddenly realized that you just described the principle behind OSL (Optically Stimulated Luminescence), a method used for dating relatively young (Quaternary age) sediments.

In the 1960s they made certain camera lenses (relatively fast and expensive ones) with thorium or uranium oxide in the glass. This rendered them slightly radioactive. Over time they would turn yellow, but this could be cured by leaving the lens out in sunlight. Probably the same phenomenon we see here.

As a navy nuke reactor operator, I can vouch for those TLD’s. Work like a champ.

Radioactive minerals slowly turn themselves amorphous by self-irradiation. The term metamict describes such minerals. Atoms can also be knocked out of place in the lattice by recoil when an alpha particle is emitted. The brannerite (UTi2O6) specimen i used for most of my PhD work was completely metamict.

❤❤

All nuclear power solutions use heat to generate power. A nuclear power plant is really just a very efficient, high tech steam engine.

The flame test for sodium is yellow, not orange. If you got orange you have an impurity (which is ironic since sodium is usually the impurity in a flame test). The sodium d-line is about the purest yellow there is. Low pressure sodium lamps are yellow. The orange in a street lamp is actually high pressure sodium which has several more wavelengths in it including orange, cyan, blue, and red. en.m.wikipedia.org/wiki/Sodium-vapor_lamp#High-pressure_sodium

Ok, gonna take some salt to work and blast it, see what happens.

Ty. Learning is fun. Got a lot from this.

Thanks ❤❤❤❤❤❤

F in chat for the F centre Cl-

Are we not going to discuss the blimp? Or am I just high?

Since the sodium chloride ions remain inside the crystal, just displaced to create the point defects in the crystal structure, wouldn't that mean that irradiating the crystals causes their volume to grow and be slightly less dense?

So this is what will be coming out of sodium nuclear reactors

What is this irradiated salt used for? Do someone know a practical use?

What does it look like after it has been bombarded with 3K Gray of neutron radiation?

Is there any danger with maybe less credible vendors that don't have much in the way of regulations to perhaps sell one of these irradiated products only to find out that they used an irradiating source that had free neutrons and whatever you bought underwent neutron activation? Because that's what terrifies me.

Some great projects, several of which might be straight out of Myst. It's nice to see brothers enjoying sci-fi and steampunk items and great to see you treating your brother nicely. Keep 'em coming!

cool, I really like the effect of sprinkling it on a hot plate

As a physics undergrad taking a lab class, I irradiated potassium chloride crystal with x-rays. Turned yellowish in appearance. Then when cooled down to liquid N2 temperatures, two types of color centers were visible in absorption spectrum. Also, did you know that amethyst turns yellow when heated? The familiar violet-purple color comes from color centers generated by background radiation over the years.

Another application of thermoluminescence is that it can be used for archeological dating. Since heating makes the dislocated electrons recombine, and, if you know the mineral's response to radiation and the radioactivity of the sample you are studying, you can predict at what rate it will "charge", heating a mineral sample and measuring how much thermoluminescence there is lets you calculate how long ago that sample was last heated to a temperature hot enough to recombine the dislocated electrons, which could for example be the time a piece of pottery was fired. Also, in quartz, the stored energy can already be released by exposure to sunlight, which means that by measuring the luminescence of sand (here stimulated by light rather than heat), it is possible to figure out how long a sediment has been buried.

Subbed, notes turned on 😇 You’re extremely good at explaining things bro. Thank you for the upload 🙂

crystal matrix damage ?

Mate I'm sorry but we are NOT calling allotropes "polymorphs".... Good christ...

LeTS HeaR iT FoR NeuTRoNS CaNt LiVe WiTH ouT THeM

Subscribed!

Thanks! now i know the difference between irradiated and radioactive ☺☺☺

Very interesting video. Thank you for making it.

🙏🙏🙏🙏

@0:20 there is a video by bionerd23 showing 18 MeV linear accelerator beam causing induced radioactivity.

Depending on how much crystal deformation there is, can it be used to "trap" other material? How is reactivity and hardness/strength affected? I'm mentally comparing it to activated charcoal for how structure impacts reactivity, and to iron carbides for how structure affects hardness/toughness. For example, can this be used to "anneal" a crystal so it doesn't break as easily?