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Inventions and Discoveries: Screw

Schweinfurt green 1844 Screw cutting machine, self-acting, invented by Rechsteiner 1854 Screw ship engine (Daniel Bernouilli). 1752 Screw ship engine (Delisle) 1823 Screw ship engine (Paucton) 1768 Screw ship engine (Ressel) 1826 Ships' anchors Shot-towers (Watt) Screw ship engine (Sauvage) Screw ship engine (Smith) Sealing-wax, in Spain Seconds-watches (Purbach) Selenium, discovered by Berzelius Self-actor, (Mule Roberts) Serpentine, first worked by Brendel, in Saxony Sewing-machine, first attempts by Weisenthal Sewing-machine (Stone and Henderson) • Sewing-machine (Madersberger, at Vienna) Sewing-machine (Elias Howe) Sewing-needles, in England (Chreening) • Ships, submarine (Drebbel) Ships, iron (Marsenne) Ships, iron, actually constructed in England Silicium, discovered by Berzelius Silk, culture of, introduced into Sicily 1130 Silk manufacture, in Lyons 1520 Silk, in use as early as B. C. 2000 Silver coin B. C. 800 Slates, scientifically prepared (Scherer) A. D. 1812 Slide-Lamp, about Slide-valve, rotating, in the organ (Hill) Sloping tramways, very old in Russia. Sloping tramways in France Sloping tramways, in Germany 1832 1835 1550 1500 1818 1824 • 1580 1755 1804 1814 1845 1560 1620 1720 1816 B. C. 800 A. D. 1760 1823 Soap, known to the Romans as early as Soda, distinguished from potash as a separate body Solar microscope (Lieberkühn) Solstice (Eudoxus) Sowing-machine, by Giovanni Cavallini, before Sowing-machine, by Joseph di Locatelli, at Klagenport Sowing-machine, by James Cook Speaking-trumpets (Samuel Moreland) Spectacles, invented by Alexander von Spina Spectrum analysis, first elements (Sir David Brewster). Spectrum analysis, (Herschel) Spectrum analysis; developed by Hirchhoff and Bunsen Spinning-frame (John Wyatt) Spinning-jenny (Hargreaves) Spinning-machine (Arkwright) .

Spinning-machine, for flax (Girard, at Vienna) B. C. 80 A. D. 1757 • 1738 • • B. C. 360 A. D. 1700 1663 1784 1670 1299 1822 • 1827 1858 1738 1767 1769 1820 Spinning-wheel (Jürgens, at Wolfenbüttel) 1530 Spirit-level, by Mitis 1831 Spoons, forging of, out of iron-plate, in the Saxon part of the Erz-Gebirge • 1710 Stamp-cutting, art of, among the Chinese :