Rowan engineers work on pedal-powered grain crusher
With the price of wheat skyrocketing lately, maybe it’s time to stop buying store bread and making it the old fashioned way! With a bike, of course. 
{rowantoday} - News and Happenings at Rowan University
Right now, the device - which students have been working on for the better part of two years and which has gone through several iterations - is in the development stage. The students and professor, as part of a Rowan Engineering Clinic, have built an aluminum grain crusher that attaches to the bicycle, which is mounted on a stand. As a rider pedals, the back wheel moves a contact element that turns a pulley that moves plates in the crusher to process the food from large to fine pieces suitable for cooking. Corn, lentils, split peas and barley - the grain crusher has worked on them all.
