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Cake day: August 18th, 2023

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  • It’s just some standard fluid dynamics. It uses “Bernoulli’s Principle” and the “Coanda Effect”.

    You can look up those, or probably look up those along with “dyson bladeless fan” to find a more direct explanation. The gist of it is that the ring of moving air causes a pressure drop inside and behind the opening that causes the air from further behind the ring to rush into the low pressure area and get pulled along through it.


  • A much higher percentage of extra air will get pulled “down range” from a Dyson style fan. It’s just that the air speed and total volume of those dysons are too low and they’d be noisy as hell to overcome it. But as a ratio of forced air to air that moves along, it’s a much better amount than a traditional fan.











  • There’s still plenty of velocity to kill and it still hits harder than a .22 out of a rifle.

    They aren’t even super terrible to to shoot as far as kick back and such, but I’d still call them pieces of shit. The rounds will sometimes tumble through the air, they’re inaccurate, and since they only hold one round, they’re kind of useless for something other than having around as a curiosity.

    I’ve seen a few different models of these pocket sized single shot rifle round lobbers. They work. They’re deadly. They’re just kind of dumb.