Learning what fire actually is, like what the flames are literally made of, blew my freaking mind years ago.
Fire is literally just gas (and fine solid particulates suspended therein) that contains so much thermal energy that its black body radiosity has reached into the visual spectrum.
There are some types of flames that are NOT bright enough to be visible under ambient lighting conditions and can only be seen in environments that are very dark!
Pure ethanol, for instance, combusts dark enough that you can't see the flames in daylight conditions, or even under strong artificial lighting.
70Methanol fires in racing are scary. No flame, no smoke, just burning you.
47New fear aquired
4I saw that in a documentary recently. Absolutely terrifying.
3
that its black body radiosity has reached into the visual spectrum
Ehm wut.
13
For the love of all that is holy stop cropping out the artist's watermarks
it is literally more effort to crop out the watermark
48It isnt cropped out is it? There's still some on there at least.
14I don't understand why some people do it, it's just such an insanely shitty thing to do that doesn't seem like it'd have any benefit whatsoever (not saying it was the OP, these tend to float around the internet.)
10
41Wikipedia rabbit holes at 3 am 🔥
37Me up until 3am, thinking I should go to bed
1:30h documentary on roman concrete later, I'm still thinking I should go to bed
23- Me with the Technology Connections and Legal Eagle YouTube channels lately.
21Why did I just spend an hour learning how they recorded audio on VHS?
10Technology Connections is the shit! The episode on hurricane lanterns is great and has a stupid joke in there that comes so far out of left field it killed me: https://youtu.be/tURHTuKHBZs
6Is that the one where he says
spoiler text
Dietz nuts
with a straight face?
2Here is an alternative Piped link(s): https://piped.video/tURHTuKHBZs
Piped is a privacy-respecting open-source alternative frontend to YouTube.
I'm open-source, check me out at GitHub.
2
Ha, I too had important research to do last night
11We're not talking about that kind of research ( ͡° ͜ʖ ͡°)
15
To be fair, it is important to know what is fire.
8Eli5. What is fire?
7Fire is a sustained chemical reaction where carbon-based molecules are broken up and combine with oxygen, releasing carbon dioxide, sometimes methane, and heat (and thus light), which primes the remaining carbon-based molecules for continued chemical reactions with oxygen.
15Financial Independence Retire Early
7
*fire is the rapid oxidization of fuel resulting in heat and light.
7We only research the important things at night
4A few minutes past 3, so he did indeed stay up long.
3Here's something I find interesting.
Firstly, the definition from Wikipedia: Fire is the rapid oxidation of a material (the fuel) in the exothermic chemical process of combustion, releasing heat, light, and various reaction products.
For all you bad cooks out there, the reason you can't burn water when you're cooking is because water is already fully oxidized. Water is also often one of those reaction products the definition talks about.
I other words, you can't burn water because it's already burnt.
1Also, in order to have fire you need heat, and water is wonderful at absolving and dissipating heat.
2
As a physicist, I find I get less confident in my ability to answer questions like this each day.
-4Probably doesn't help that every consecutive year of physics education is like "anyway everything we taught you last year is a simplification that's technically wrong. Here's how it really works now that you know enough math to understand the next level"
6This is exactly why I never finished my Bachelors in Theoretical Physics. "Waste of time," I says. In two years it'll all be proven wrong anyway
2
