S-trap / P-trap (Eg in sinks and toilets)
And zip ties ๐
S-trap / P-trap (Eg in sinks and toilets)
And zip ties ๐
Pretty much anything with an interplay of water and air pressure fascinates me. Someone else mentioned siphons. I'll mention diving bells and bongs.
Perculator coffee!
The moka pot
+1 Moka pot
My not-vented s traps are not impressive
Wheels are pretty cool
Lathes. You spin a thing and cut it, which sounds unimpressive, but from there you can bootstrap to pretty much all modern technology.
Or, alternatively, you can bootstrap into a fine red mist as you get stuck to it and violently flung about
Lathes rule
Yes, when bootstrapping, tuck in your bootstraps.
To add a bit of detail, it comes down to circles being nice, simple geometric objects, and an assembly of metal with contact points being capable of way more accuracy than you'd first expect.
Bootstrapping the first lathe is harder; most likely some historical elite master craftsman was able to make one freehand, and future ones derived from it. We still have the one Vaucanson made that way, although it sounds like it was a one-off. David Gingery wrote a book on the topic, but he still assumes you have a power drill and a ready-made threaded rod.
Rock.
I like to get all up in my snuggie. Get a little weird.
Sleeping pad shnozzle bags (pump sacks).
Turbine style desk fans. They push wind very fast.
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