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
Alessandro Manzoni her in His name by the Father, she alone possesses what she has had immediately from God and can never lose, the whole of moral truth, omnem veritatem, in which all individual moral truths are included, as well those which man may learn by the help of reason, as those which form part of revelation or which may be deduced from it". Alessandro Manzoni Alessandro Francesco Tommaso Antonio Manzoni (; 7 March 1785 – 22 May 1873) was an Italian poet and novelist. He is famous for the novel "The Betrothed" (orig. ) (1827), generally ranked among the masterpieces of