For anyone who wants to know more: This is an application of Jansen's linkage: https://en.wikipedia.org/wiki/Jansen%27s_linkage There are other similar linkages but Jansen's is quite good. For anyone who doesn't have an idea why something like this matters or is inspiring beyond art, legged vehicles have many downsides but one big upside is that you can theoretically avoid the rubber/microplastic particulate emission…
Wouldn't a legged vehicle still have that problem if it can achieve the same speeds and weights that regular cars go at? Scale up a human for example to the weight and speed of a car. Crazy powerful and big legs, big feet, big shoes. The rubber must hit the road either way and push down with a force to propel the weight of this car-heavy legged human at speeds of 100km/h. It would still wear rubber away just like tir…
It’s been a hot minute since I learnt rolling friction in high school physics but (iirc) a very interesting and unintuitive aspect of it is that there’s always an opposing/slowing force on a (rubber) wheel. Only a slippping wheel will not experience a slowdown. Static friction is different from rolling friction, and (I think) can offer zero wear in ideal conditions - but rolling wear is always non-zero.