Electric pickup offerings like the Ford F-150 Lightning and Rivian R1T can tow just like a gasoline-powered pickup. However, their electrified powertrains are not immune to the extra strain towing ...

Combinatorics, or at least part of it, is the art of counting. For example: how many derangements does a set with n n elements have? A derangement is a bijection with no fixed points. We’ll count them ...