Glass harmonica Franklin and a fellow of the Royal Society, extended the experiments of Pockrich, contriving a set of glasses better tuned and easier to play. During the same decade, Christoph Willibald Gluck also attracted attention playing a similar instrument in England. Benjamin Franklin invented a radically new arrangement of the glasses in 1761 after seeing water-filled wine glasses played by Edmund Delaval at Cambridge in England in May 1761. Franklin worked with London glassblower Charles James to build one, and it had its world premiere in early 1762, played by Marianne Davies. Writing to his friend Giambatista Beccaria in Turin, Italy,
Paris in the 18th century Concorde. An attempt was also made in the late 18th century to improve the quality of street lighting. In 1669, under Louis XIV, the city was already lit with three thousand oil lamps, suspended in the middle of the street at a height of twenty feet, with twenty feet between each lantern, but not every street was lit, and the light was usually very dim; those going out at night or to the theater were usually obliged to hire a lantern-bearer to light their way until the end of the century. Between 1745 and 1769, the old lanterns were gradually