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
John Edwards (18th-century politician) John Edwards (18th-century politician) John Edwards (1760–98) was the eighth intendant (mayor) of Charleston, South Carolina, serving two terms from 1795 to 1797. Edwards was born in 1760 to John Edwards and Margaret Peronneau. He served as an aide-de-camp to Francis Marion during the Revolutionary War and married Rebecca Donnom in 1783. Edwards was elected from the Charleston area to the General Assembly for 1787–1788, but he resigned his position when he was appointed Commissioner of the South Carolina Treasury. For 1791 to 1794, he was again elected to the General Assembly. Edwards was elected intendant September 26, 1795, and