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Wistful@discuss.tchncs.de to Memes@lemmy.ml · 2 years ago

Important research

discuss.tchncs.de

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Important research

discuss.tchncs.de

Wistful@discuss.tchncs.de to Memes@lemmy.ml · 2 years ago
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  • Cyrus Draegur@lemm.ee
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    2 years ago

    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.

    • Rhaedas@kbin.social
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      2 years ago

      Methanol fires in racing are scary. No flame, no smoke, just burning you.

      • AnonStoleMyPants@sopuli.xyz
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        2 years ago

        I had an RC car as a kid with a small combustion engine that used methanol. When I and my friend realised that methanol burns without a flame we got so excited. It brought a new dimension to our army men shenanigans. That and discovering home made napalm.

        • Instigate@aussie.zone
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          2 years ago

          Oh man, the homemade napalm comment really hits home for me. How did you use to make it? My friend always said that it was by melting polystyrene foam in petrol (no heat needed, it simply melts on contact).

          • AnonStoleMyPants@sopuli.xyz
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            2 years ago

            Yeah we used styrofoam and melted it into this weird goo that sticks everywhere. Was dope.

      • catsup@lemmy.one
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        2 years ago

        New fear aquired

      • navi@lemmy.tespia.org
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        2 years ago

        I saw that in a documentary recently. Absolutely terrifying.

        https://youtu.be/JribVbv6CV4

        • PipedLinkBot@feddit.rocksBannedB
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          2 years ago

          Here is an alternative Piped link(s): https://piped.video/JribVbv6CV4

          Piped is a privacy-respecting open-source alternative frontend to YouTube.

          I’m open-source, check me out at GitHub.

    • Anamana@feddit.de
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      2 years ago

      that its black body radiosity has reached into the visual spectrum

      Ehm wut.

      • AspieEgg@lemmy.blahaj.zone
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        2 years ago

        It gets so hot that it glows. Like how a filament in an incandescent light bulb glows when enough electricity is put through it.

        • Anamana@feddit.de
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          2 years ago

          Thanks for ELI5

      • DanVctr@sh.itjust.works
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        2 years ago

        Black body radiation is how you express thermal energy

        • WarmSoda@lemm.ee
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          2 years ago

          Hot, like how Keke Palmer expresses thermal energy.

    • IndiBrony@lemmy.world
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      2 years ago

      I’ve heard propane is a clean burning gas, I tell you hwat.

      • Cyrus Draegur@lemm.ee
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        2 years ago

        “That boy ain’t right!”

        /)

        • IndiBrony@lemmy.world
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          2 years ago

          (\

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