Risto Korhonen, Jouni Rättyä, Linear Differential Equations in the Unit Disc with Analytic Solutions of Finite Order, Proceedings of the American Mathematical Society, Vol. 135, No. 5 (May, 2007), pp.

This wooden box with a glass front contains two of the six original integrators from the differential analyzer designed by Vannevar Bush (1890-1974) for use in the electrical engineering department at ...

ABSTRACT Torque loss reduction at differential gear unit is important to improve the fuel economy of automobiles. One effective way is to decrease the viscosity of lubricants as it results in less ...

maker Bush, Vannevar Description This steel shaft has a steel cylinder next to a thin rotating brass drum. A friction band goes around the drum. The central gear train is missing. There is then a ...