It is fascinating to compare tools from one epic to another, even in the field of house work.
Here are two clothes irons. The one on the left is a heavy block of metal that would be heated up on a wood stove. The handle popped off, to keep it cool, and to switch between two irons, one you are using while the other is warming up. On the right, not only did someone invent a swivel cord that would quit breaking off, but they put a motion sensor in the handle and if no one is around for 10 minutes, it turns itself off.