3 ms·
It is thought that the biggest challenge for using a wheel for serious applications was getting the axle right. This is not an issue for toys. https://interest
by prennert 5y ago
It is thought that the biggest challenge for using a wheel for serious applications was getting the axle right. This is not an issue for toys.
https://interestingengineering.com/the-history-and-evolution-of-the-wheel https://interestingengineering.com/the-history-and-evolution...