"Travois" seemed the most interesting one. Based purely on the first page of Google images, it struck me as somewhere between a horse and a carriage, but ever more on the vehicle side.
it has no wheels so it is just dragged, maybe behind a horse but people can drag them too. horses walk and carriages roll, so it's not really between them. it's the asymptotic limit as wheels shrink to zero.
fsckboy|2 years ago