S-trap / P-trap (Eg in sinks and toilets)
And zip ties 👍
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
A fountain pen is just a controlled leak
I use a Kaweco Sport as my daily driver.
Bonus: Nobody ever “borrows” it at work because it confuses and terrifies them.
Manual can openers are better than electric can openers
Especially the kind that uncrimps the can instead of cuts it.
String/rope. With a couple of knots, loops and tension you can make a lot of things with it.
Wheels are pretty cool
Partially buried housing (ground cooling effect)
Do you have any good resource for beginner to learn about this?
YT Our Self Reliant Life.
On this same note, insulation in general. We can only make something so strong, conductive, heat-resistant, light or hard, so we’ve internalised the expectation that there’s always practical limits. But insulative? There just isn’t one. That means that with an arbitrarily small source of energy - body heat is not only possible but typical - you can overcome unlimited external coldness. We’ve being doing this since before we were human, by many definitions.
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.
Dice.
Rock.
Siphons
Axes, I have four and I will get another next year.
I have a hatchet for small tasks, a midsized axe for cutting small trees down and chopping, a Pulaski for landscaping/ digging tasks and I have a splitting axe/maul for splitting rounds.
There is something incredibly rewarding and fun about swinging an axe.
Brother!
I like to get all up in my snuggie. Get a little weird.
Hand tool woodworking. It’s amazing what you can make without a single electron. Its also amazing to feel the tools, the resistance and subtle vibrations as you use them. Like an extension of your own body. I love chiseling, especially large mortises. Hearing that sharp, deep thud, and seeing it sink in as it bites into the wood is so satisfying. Especially when using metal hammers, they are so responsive.
I love sawing, especially when relaxed and working at a slow pace, seeing all the sawdust fly out with each stroke. Sawing isn’t fun when working on difficult pieces of wood, when working in a relaxed manner with softwood, the hoarse sounds of the saw starts to sound like purring and it begins to cut exceptionally well.
I love the finish of handplanes, so smooth it becomes water resistant.
Overall very spiritual and relaxing (as relaxing as you allow it to be at least)
Hey Paul Sellars, looking forward to your new video!
Hand tools are spiritual in a way that machine tools will never be. I love the texture and heft of planes. The simplicity and quiet operation. Working with timber and steel is one of the greatest pleasures in life.
Sleeping pad shnozzle bags (pump sacks).
Turbine style desk fans. They push wind very fast.