1. French physicist André-Marie Ampère conjectured that current travelled in one direction from positive to negative.

2. In mathematics, a (real) Monge–Ampère equation is a nonlinear second-order partial differential equation of special kind.

3. Using synthetic geometric methods, he developed geometric methods to obtain priori estimates for solutions of Monge-Ampère equations.

4. A student of electricity soon learns that the electrical units of power, pressure, current and resistance come from the names of James Watt, a Scottish engineer, Alessandro Volta, an Italian physicist, the French scientist Ampère and the German Georg Ohm.