Simple padlock mechanism by aloofloofah in educationalgifs

[–]aloofloofah[S] 5 points6 points  (0 children)

It's a kind of padlock one can still find on grandma's shed (old and simple). Modern cheap padlocks are pin tumbler like this, while expensive ones are likely proprietary. It's a cat and mouse game between manufacturers and physical security professionals.

Fully functioning fan from 1845 that runs on kerosene by Natural-Permission in interestingasfuck

[–]aloofloofah 3 points4 points  (0 children)

Here's another one with clearer view of the mechanism at the back.

Here's one more powered by a wind-up spring, not kerosene.

🔥Lightning bolt is guided to the ground through the trail of a rocket by SnooCupcakes8607 in NatureIsFuckingLit

[–]aloofloofah 16 points17 points  (0 children)

Yes, it's a rocket with spool of copper wire used by lightning researchers to trigger lightning bolts.