On a warm July evening at the Nevin Rice farm just outside of Blain, more than 50 townsfolk gathered to witness what was advertised as a prelude to a thrashing. No, it wasn’t the anticipated outcome ...

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 ...

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 ...

Before detailing the differences of static vs. dynamic, let’s first explore balance and its importance to sheaves and the overall drive. When an object like a sheave or even the wheel on a car rotates ...

The iconic shafts of wheat and corn that have arched over the east entrance of the building that formerly held the Kansas City Board of Trade were pried off the wall Tuesday after a nearly 50-year ...

This paper generalizes a formula of Grothendieck, Ogg, and Shafarevich that expresses the Euler-Poincaré characteristic of a constructible sheaf of Fl-modules on a ...