1821—Faraday converts Electric Current into Mechanical Motion.
1822—Babbage Calculation Engine.
1823—Liquefaction and Solidification of Gases by Faraday, and foundation of ammonia absorption ice machine laid by him. Seebeck discovers Thermo-electricity. Silicon discovered by Berzelius.
1824—Discovery of metal Zirconium by Berzelius. Wright’s Pin Machine.
1825—First Passenger Railway in the world opened between Stockton and Darlington. Sturgeon invents prototype of Electro Magnet. Beaumont’s discoveries in Digestion (Alexis San Martin 1825-32).
1826—Discovery of Bromine by M. Balard. Barlow’s Electrical Spur Wheel. First Railroad in United States built near Quincy, Mass.
1827—Aluminum reduced by Wohler. Ohm’s Law of Electrical Resistance. Hackworth’s Improvements in Locomotive. Friction Matches by John Walker.
1828—Neilson’s Hot Blast for Smelting Iron. Professor Henry invents the Spool Electro Magnet. Tubular Locomotive Boiler by Seguin. First Artificial production of organic compounds (urea) by Wohler. Thorium discovered by Berzelius. Yttrium and Glucinum discovered by Wohler. Nicol’s prism for Polarized Light. Woodworth’s wood planer. Spinning Ring invented by John Thorp.
1829—Becquerel’s Double Fluid Galvanic Battery. George Stephenson’s Locomotive, “Rocket,” takes prizes of Liverpool and Manchester Railway. Importation of “Stourbridge Lion,” the first locomotive to run in the United States. Daguerreotype invented. Discovery of Magnesium by Bussey.