Eudiometer truly pioneered by Count Alessandro Volta (1745–1827), an Italian physicist who is well known for his contributions to the electric battery and electricity. Aside from its laboratory function, the eudiometer is also known for its part in the "Volta pistol". Volta invented this instrument in 1777 for the purpose of testing the "goodness" of air, analyzing the flammability of gases, or to demonstrate the chemical effects of electricity. Volta's Pistol had a long glass tube that was closed at the top, like a eudiometer. Two electrodes were fed through the tube and produced a spark gap inside the tube. Volta's
Marsilio Landriani to convince Landriani to change over to the new chemistry, but he never was able to decide between phlogiston and oxygen. After 1790 he dealt exclusively with chemical applications of electric phenomena, and the improvement of physics and meteorology instruments. During his career he enjoyed a popularity comparable only to that of Alessandro Volta and Lazzaro Spallanzani, of all Italian scientists of that time. Marsilio Landriani Marsilio Landriani (Milan, 1751 – Vienna, 1815) was an Italian chemist, physicist and meteorologist. He became known with his first book, (Physical investigations on the salubrity of air), published in 1775. In it he