Ernst Chladni at the understanding of electron orbitals. Since at least 1738, a musical instrument called a "Glasspiel" or "verrillon", created by filling beer glasses with varying amounts of water, was popular in Europe. The beer glasses were struck by wooden mallets shaped like spoons to produce "church and other solemn music". Benjamin Franklin was sufficiently impressed by a verrillon performance on a visit to London in 1757 that he created his own instrument, the glass armonica, in 1762. Franklin's armonica inspired several other instruments, including two created by Chladni. In 1791, Chladni invented the musical instrument called the "euphon" (not to
Deism in England and France in the 18th century homeland. Deism in England and France in the 18th century Deism, the religious attitude typical of the Enlightenment, especially in France and England, holds that the only way the existence of God can be proven is to combine the application of reason with observation of the world. A Deist is defined as "One who believes in the existence of a God or Supreme Being but denies revealed religion, basing his belief on the light of nature and reason." Deism was often synonymous with so-called natural religion because its principles are drawn from nature and human reasoning. In contrast to Deism