An early form of capacitor consisting of a glass jar lined inside and out with tinfoil and having a conducting rod connected to the inner foil lining and passing out of the jar through an insulated stopper
It is coated with tin foil, within and without, nearly to its top, and is surmounted by a brass knob which communicates with the inner coating, for the purpose of charging it with electricity
It is coated with tin foil, within and without, nearly to its top, and is surmounted by a brass knob which communicates with the inner coating, for the purpose of charging it with electricity
born 1489/94, Leiden, Neth. died before Aug. 8, 1533, Leiden Netherlandish painter and engraver. He was trained by his father, a painter, but his great talent was as an engraver. Even such youthful prints as Muhammad and the Monk Sergius (1508) show great technical skill. In 1510, under the influence of Albrecht Dürer, he produced two masterpieces of engraving, The Milkmaid and Ecce Homo, the latter much admired by Rembrandt. He is thought to have developed the technique of etching on copper (instead of iron) plates; the softness of copper permitted him to combine etching and line engraving in the same print. He was also among the first to employ aerial perspective in prints. Though his paintings seldom attain the power of his engravings, he was an outstanding Netherlandish painter of his period; The Last Judgment (1526-27) is his most celebrated painting
born 1489/94, Leiden, Neth. died before Aug. 8, 1533, Leiden Netherlandish painter and engraver. He was trained by his father, a painter, but his great talent was as an engraver. Even such youthful prints as Muhammad and the Monk Sergius (1508) show great technical skill. In 1510, under the influence of Albrecht Dürer, he produced two masterpieces of engraving, The Milkmaid and Ecce Homo, the latter much admired by Rembrandt. He is thought to have developed the technique of etching on copper (instead of iron) plates; the softness of copper permitted him to combine etching and line engraving in the same print. He was also among the first to employ aerial perspective in prints. Though his paintings seldom attain the power of his engravings, he was an outstanding Netherlandish painter of his period; The Last Judgment (1526-27) is his most celebrated painting