Science and technology in Italy various astronomical observations, and initial formulation of the first and second laws of motion. Galileo was suppressed by the Catholic Church, but was a founder of modern science. The astronomer Giovanni Domenico Cassini, who made many important discoveries about the Solar System; the physicist Alessandro Volta, who invented the electric battery, thus providing for the first time a sustained source of current electricity; the mathematicians Giuseppe Peano, Lagrange, Fibonacci, and Gerolamo Cardano, whose "Ars Magna" is generally recognized as the first modern treatment on mathematics, made fundamental advances to the field; Marcello Malpighi, a doctor and founder of microscopic anatomy;
Electric potential one can therefore write where "V" is the scalar potential defined by the conservative field F. The electrostatic potential is simply the special case of this definition where A is time-invariant. On the other hand, for time-varying fields, unlike electrostatics. The SI derived unit of electric potential is the volt (in honor of Alessandro Volta), which is why a difference in electric potential between two points is known as voltage. Older units are rarely used today. Variants of the centimeter gram second system of units included a number of different units for electric potential, including the abvolt and the statvolt.