I Spent Half A Year on this CHEMICAL!

Best Patrons: Stan Presolski, reinforcedconcrete, Dean Bailey, Bob Drucker, Pradeep Sekar, Applied Science, Purple Pill, afreeflyingsoul. Thank you guys!
Now I am going to tell you more about an unusual glowing substance.

[michaelzumpano]

You just keep getting better! Every time I said, “okay, I get it”, you doubled down with another experiment and another phenomenon! I’ve been watching you for years and I just wanted to say thank you for the hard work you do.

[davidzachmeyer]

The instrument panels in the Apollo command module & lunar module utilized electroluminescent backlighting.

[_c_y_p_]

Thank you for sharing this comprehensive deep dive into things that glow!

[lecolintube]

Thanks for the awesome video.
Interestingly, the Stewart Semple ‘LIT’, which you bought from the USA (13:06) is actually made by a British Artist who started making his own pigments in response to one particular artist being given sole rights to use Vantablack (a nano carbon texture that at the time was described as the ‘blackest black’). Stewart disagreed with this monopoly, and LIT has been one of the products he’s created since.

[migalito]

One of my favorite Estonian channels, sorry to hear you have been under the weather. So was I due to presumably covid and only recently have I been productive again.

[me]

Just a slight correction at around 2:40.

The glowing in the moment is fluorescence. But the afterglow is phosphorescence.

[erichoceans]

So great to find unseen video in original voice over. Love it😅

[pirobotbeta]

I played with fluorescent fishing lures as a child; they were a flat bit of plastic that glowed green.
I'd 'charge' them with a lamp, then watch the glow slowly fade.
On a cold day, I discovered that static-discharges would make 'dark lightning' patterns in the glowing plastic of the lure!
I would charge the lure with a lamp; sparks passing through the lure made a brief bright streak that 'used up' the stored light energy!
This resulted in fine dark lines appearing on the glowing background.
Lichtenberg patterns on the cheap?
Heating the glowing plastic made it brighter, but the glow fades faster.
Always thought they'd make a novel 'short-term memory' for a gadget...

[michaelseitz]

Wow, this is commitment. Thanks for yet another interesting and entertaining video 💖

[mars]

Thank you for sharing your experiments! I always appreciate chemistry done well. Science is a method. It is a method of noticing, then sharing what you notice to others and asking "Do you notice this too?" And in this dialogue, we further our mutual understanding and create a shared lexicon to further the field.

[charlesrussell]

Great job walking through the many steps and end results. The applications of flex indicative luminescents is pretty cool.

[davidmontroy]

When I bought my house a couple years ago, which included a beautiful inground swimming pool, I found that in the process of the pool being surrounded with concrete, had "glow in the dark" stones embedded in the finished surface. So during the day, these stones would "charge" in the sunlight, and after sunset would glow. Not bright enough to read by, but certainly helpful in walking around without missteps.

[S]

I have also seen this light emission when twisting/pressing on some high end luminescent vinyl off cut I got from a customer of mine about 10 years ago. It also reacts to heat from my hand print or any other heat source. I still have in sitting on a box in the shed and it's very bright at night. I purchased a 405nm laser pointer a few days ago and that energizes it something crazy, extremely bright!

[pattheplanter]

Nice to see you featuring Stuart Semple's products.

[mmdirtyworkz]

Very detailed and informative video as always, thanks!

[Ucceah]

green LIT ispropably the propably the brightest phosphorescent pigment there is. not a long long lasting afterglow, but for 5 minutes it lights up a dark room

[alexwang]

I said wtf out loud when the microwave technique worked; I was thoroughly impressed

[stevesloan]

Its wild you said about, how powerful the piezoelectric circuits are.
You should of mentioned how the same material is used for those super load fire alarms.
That fact always spun me out.
Makes sense somehow.

[goiterlanternbase]

11:50 The stuff, that sparked, glow the fastest an brightest.

[N-GaugeTheTrains]

It's 5 am so I save this juicy video hopefully on luminol for later.😉