3 ms·
"Wheels are trivial but useless without bearings." Carts, chariots, and wheelbarrows (to name but a few examples) have been useful for thousands of years witho
by pmoriarty 3y ago
"Wheels are trivial but useless without bearings."
Carts, chariots, and wheelbarrows (to name but a few examples) have been useful for thousands of years without bearings.
- baq 3y agoThe simplest bearing is a greased axle. This was the big 'wheel' discovery, not the round thingie, but how to attach a box on top. So we agree!