alpine_jim

that’s reasonable.

bonus fun fact - the etymology is connected - “axle” comes from older words for “shoulder”, or “armpit”, which survives in some regional Englishes as “oxter” - the connection is apparently that you’d carry a person by putting their arms up and linking at the shoulders, much like an axle is how wheels carry a cart.

https://www.etymonline.com/word/axle

No, that’s what I meant by not an axle.

But, come to think of it, we can swing our arms round and round, more than 360°.

How about this insect with a pair toothed gears? Not an axle, but still amazing!

“The juvenile Issus - a plant-hopping insect found in gardens across Europe - has hind-leg joints with curved cog-like strips of opposing ‘teeth’ that intermesh, rotating like mechanical gears to synchronise the animal’s legs when it launches into a jump.”

right, even trains don’t need diffs, the conic-slice wheels take care of turns fine without.

What’s the point, if downvotes are no longer a factor in the YT backend?

extensive use of the “Don’t recommend this video > Tell us why > I don’t like this video” function, plus removing bad videos from my watch history after I stop watching, has got me a well-trained slop-free recommendations page with interesting new smallish channels.