User:Lionel Anet/sandbox

The wheel can't be classed as an invention as it’s too obvious for anyone thinking of making life easier. The main problem for a practical wheel is the need off a hard and high resilient strong material for an axle. There'sLionel Anet (talk) 09:02, 25 February 2016 (UTC)L also must be a need for it, as it would be a burden for hunter-gatherers. An invention must be practical and for a wheel it had to wait for iron smelting. But the concept is very simple and straightforward. Unfortunately with the repetition of its invention, it's difficult to see its simplicity and obviousness.