1000°c seems accurate:
Fun little science fact: Heated objects glow the same colors no matter what they are made of. It's called Black Body Radiation. The color chart shows what temperatures correspond with various "colors" of glow.
this post was submitted on 22 Oct 2025
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Heated objects glow the same colors no matter what they are made of
True only if light emissions aren't dominated by chemical effects or filtered by structural effects. Plenty of materials burn at different colors. Although if you wait out the chemical reactions and keep it heated, it does eventually end up with just blackbody radiation too 🤷
Unless it is a gray body. For somewhat accurate measurements you must do math.
But corrected by emissivity factor. Emissivity factor is also not constant, and changes as both a function of material and temperature. Probably associated with band gap fluctuating wrt. Temperature
Aluminium doesn't glow, even when molten though?
That simply means it must melt below 600°C.
A quick wiki check says it melts at 660. I guess if you're in a really dark room, you could see the glow.
Real bodies are gray, not black.
All bodies matter.
Eventually will glow human eye visible if you keep heating it past useful temperatures. 1000'C+ starts getting red hot.
Doesn’t emit light as readily as iron does, especially with iron’s oxide layer building up when heated.
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Related, but off topic.
If you ever visit Taiwan, be sure to eat the local pineapples. We have one of the sweetest pineapple and we eat the core of the pineapple. The core is actually crunchy, like the constancy of a crispy pear.
good to know
My friend calls pineapples 'Dragon Eggs' and tossed one into a bonfire. Pulled it out later to have the most delicious roasted sweet mythical egg ever
Sounds tasty. I can vouch for lemons undergoing a similar transformation. Wrap them in foil, seal it really well, and chuck them near a fire or bbq. They come out soft, sweet, and delicious.
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Before Maillard invented his reaction in 1912, you would have just gotten a burnt lemon
That was nice of him! Thanks, Maillard!
Mother of pineapples
Like, in the middle of the fire? For how long? Wanna try it in the future
Tossed it in when the fire was at peak flame, and then waited for the wood to burn, the pineapple looked like a big piece of black coal
I need to try this. A full pineapple into the flames naked?
Pineapple can be naked, if anyone else is naked, I suggest not jumping into the flames
It works for breadfruit as well, my favourite way to cook it. You'd believe it has turned to charcoal, but no, the inside is like sweet bread fresh out the oven. I like to cut it in half and scoop it out with a spoon
Roasted pineapple is delicious. Coat it on some brown sugar, roast it, then carve off the toasted bits. Repeat.
Isn’t the pineapple sweet enough that sugar could be omitted?
Look, I've got a sweet tooth.
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I've been watching Tech Ingredients search for the best shield material to test their Drone destroying extreme high power laser setup indoors for obvious reasons.
It turned out to be fruits/veggies. Nothing else came close. So he went with panels filled with thickened water.
That makes sense. The specific heat of water is a real bastard to overcome.
I'm personally skeptical of laser based weapons, given that they have one wavelength. once one is developed and deployed, it will be trivial to paint drones with a reflective paint specific for that wavelength.
The results is a nation investing 100s of millions on a weapon, that once deployed will be countered by 1000s $ of spray paint.
imagine if you could get a t-shirt that could deflect a any bullet. that's what still happen with laser based weapons.
We will see. Militaries are making laser based anti drone weapons, and anti aircraft weapons are expected "soon"
Green lasers seem popular
I think that wouldn't necessarily work once you get to the right wavelengths for it to start interacting with the organic bases of the paints. There's only so much you can do when someone shoots an infrared laser at the resonant frequency of a C=C double bond.
Wasn't that 1500 whatever-the-unit-was? Below 1000 whatever-the-unit-was was the fingerprint bands, 3400ish whatever-the-unit-was was the O-H bonds, 3100ish whatever-the-unit-was was N-H bonds, 2900ish whatever-the-unit-was was the triple-to-C-H bonds, etc.
Ugh. The lab portion for that was so tedious. We would have to sketch the expected resonance patterns by hand for a bunch of different molecules. I loved the simplicity of the hydrogen bond nuclear resonance imaging so much more.
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ooo, i never thought of using blue tape the way he does, to keep crumbs and shit off a surface i was going to be finishing/sealing later. that's a good idea
edit: also i guess if i show up to a protest strapped in cukes, you all now knnow why
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"My armour is like tenfold shields, my teeth are swords, my claws spears, the shock of my tail is a thunderbolt, my wings a hurricane, and my breath death!...Wait, is that...pinapple skin armour?? Oh, shit, I'm so fucked!"
(Dragon does dragon stuff)
Sir Pinappleus the Hawaiian: You absolute fool.
Iron? I suspect otherwise... My dear RHNB, I miss your red hot nickel ball.
so does this make my balls permanently sweet or what
The pineapple will be just fine the flesh touching the steam on the other side spread all over your body by the pineapple keeping it pressed against your skin on the other hand is going to have a nice chard bbq taste.
If the steam doesn't get you, the enzymes breaking down your proteins would surely give you horrible skin irritation.
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