In 1940, the French mathematician and artillery officer Jean Leray was taken prisoner by the Germans. He told his captors that he was a topologist, fearful that if they discovered his true area of ...

Variable speed belt drive sheaves are common on combines. At their simplest, a pair of sheaves at one end of a belt moves closer together or farther apart. Another pair of sheaves at the other end of ...

People sometimes ask if there are wear differences due to the raw edge design of the notched V-belt vs. the fabric all over design of the classical wrapped V-belt. The fact is many factors can ...