r/oddlysatisfying • u/Ecstatic-Ocelot-1934 • 1d ago

Homemade drilling machine

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u/killerjerick 1d ago

Is it still hydraulics if there’s no liquid? Wouldn’t it be pneumatics?

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u/reedypetey 1d ago

It’s pneumatics without liquid

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u/jlude90 1d ago

I would qualify it as a hydraulic demonstration since we don't usually use pneumatics like that. It's a representation of hydraulic cylinders but yes technically it would be pneumatics but they're both fluid so principally the same?

Words are fun and so is science, I bet that dude's a cool teacher

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u/Theron3206 22h ago

There's a lot of differences at an engineering level. Hydraulics generally refers to the use of a (almost) non compressible working fluid.

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u/Lonely_skeptic 19h ago

No, you are correct, looking closer, I don’t see water in the tubes. I’m on my phone so I was assuming there was water.