I never knew and got curious and looked it up. I guess it makes more sense than slamming your testicals against the wall.

    • LovableSidekick@lemmy.world
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      18 hours ago

      Thanks, that’s a lot more than my sketchy memory of what my dad told me (WWII pilot). Might not be where “under the wire” came from but it’s fascinating.

    • dave@feddit.uk
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      1 day ago

      TIL you can increase engine power by mixing water into the fuel.

      • LifeInMultipleChoice@lemmy.dbzer0.com
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        19 hours ago

        You can also increase speed by not using any propellers or moving parts. At supersonic speeds you capture the air, compress it into a chamber than hit it with a spark and blow the fucker up. That’s how a ramjet engine works. China just made one that uses pulse like combustions in a engine that’s only about a foot wide, and maybe 13 feet long. Speeds up to mach 4… or 5000km/h (3100mph) at about 65,000 feet.

      • Madison420@lemmy.world
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        19 hours ago

        It needs to be injected into the air charge with the best atomization you can manage for best results.