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[-] Bubs@lemmy.zip 84 points 6 days ago

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.

[-] Natanael@infosec.pub 27 points 6 days ago

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 🤷

[-] icelimit@lemmy.ml 9 points 6 days ago

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

[-] Gladaed@feddit.org 6 points 6 days ago

Unless it is a gray body. For somewhat accurate measurements you must do math.

[-] Agent641@lemmy.world 5 points 6 days ago

Aluminium doesn't glow, even when molten though?

[-] i_love_FFT@jlai.lu 14 points 6 days ago

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.

[-] Gladaed@feddit.org 4 points 6 days ago

Real bodies are gray, not black.

[-] BreadOven@lemmy.world 5 points 6 days ago

All bodies matter.

[-] BurgerBaron@piefed.social 3 points 6 days ago

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.

[-] Nikls94@lemmy.world 3 points 6 days ago

Which makes iron a suitable substitute for tungsten at 3000 C

[-] jaschen306@sh.itjust.works 32 points 6 days ago

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.

[-] jerkface@lemmy.ca 6 points 6 days ago* (last edited 6 days ago)

Iron? I suspect otherwise... My dear RHNB, I miss your red hot nickel ball.

[-] atomicorange@lemmy.world 7 points 6 days ago

Why was the pineapple discarded? They could have eaten it 😭

[-] stray@pawb.social 7 points 6 days ago

Don't worry. It's a black deck, so the graveyard is exactly where the pineapple wants to be.

[-] 5714@lemmy.dbzer0.com 5 points 6 days ago

and what happened to the card

[-] MonkeMischief@lemmy.today 3 points 6 days ago

It got dissed.

What it did to deserve that, we might never know. . .

[-] falseWhite@lemmy.world 2 points 6 days ago

I know, right? I'll even eat the stickers, nothing goes to waste!

[-] village604@adultswim.fan 1 points 6 days ago

I believe it's just the skin

[-] atomicorange@lemmy.world 1 points 6 days ago

Right but it says “the skin of a discarded pineapple” — meaning the pineapple was discarded, not the skin. Just a silly grammar joke.

[-] Quexotic@infosec.pub 1 points 6 days ago

It's only valid if it's the RHNB.

[-] heyWhatsay@slrpnk.net 178 points 1 week ago

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

[-] Agent641@lemmy.world 9 points 6 days ago

Mother of pineapples

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this post was submitted on 22 Oct 2025
776 points (99.7% liked)

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