Famous Mathematician, primarily for developing a mechanical device for

changing linear motion into circular motion, now known as the "Lipkin

Parallelogram." He remained poor all his life, in part because of the

fact that he was Jewish in the academic world. He lived for a time in

Petersburgh before returning to Koenigsberg. He received his Ph.D. from

the University of Jena in 1870 and died five years later at the age of

30.