Discoveries & Inventions Exercise 03

Discoveries & Inventions Exercise 03

• Piano by Christopher
• Printing press (screw type) by Guten Berg
• Radar by Watson Watt
• Railway (electric) by Werner Siemens
• Razor safety by Gillette
• Razor (electric) by Jacob Schick
• Refrigerator by Ferdinand Carre
• Revolver by Samuel Solt
• Rifle by August Kotter
• Rifle (automatic) by John Moses Browning
• Rocket Engine by Goddard
• Safety pin by Walter Hunt
• Sewing Machine by Elias Howe and Thomas Saint
• Stainless steel by Herry Brearley
• Stream boat by Abbans
• Submarine by Holland
• Tank military by Swinton
• Telephone by Graham Bell
• Radio by Marconi
• Telescope (reflecting) by Galileo
• Telescope (refracting) by Newton
• Television (mechanical) by J.L. Baird
• Television (electric) by Fransworth
• Thermometer by Galilo
• Termomter (mercury) by Farhenheit
• Tractor by Robert Keeley
• Transformer by William Stanley
• Transistor by William Shockley
• Type writer by Henry Mill
• Washing machine (electric) by Alva Fisher
• Washing machine (manual) by Hamilton E. Smith
• Welding (electric) by E. Thomson
• Zipper (meshed tooth) by Gideon Sundback
• Celcius devised Centrigrade scale
• Bacteria were discovered by Louis Pasture.
• Ramsay discovered inert gas.
• Proton was discovered by Goldstein
• Who is credited with the development of polio vaccine? Jonas Salk
• Christopher Cockerel invented what: Hovercraft
• The electric chair was invented by a dentist
• Bardeen and Brattin discovered Semiconductor
• What was invented by James Dewer in 1872: Vacuum or thermos flask
• Atom Bomb (Uranium Fission) was invented by Otto Hahn in 1941.
• Electron was discovered in 1897.
• Oxygen was discovered in 1774.
• Tomas A Edison was American.
• X-rays and Cosmic rays were discovered by Arthur Compton.
• Printing press was invented by Johann Gutenberg.
• Gramophone was invented by Emile Berliner.
• Blood pressure was discovered by William Harvey.
• Magnifying glass was invented by Roger Bacon.
• Insulin was discovered by Banting.
• Michael Faraday invented Electric Motor in belonged to England.
• ECG invented by Einthogen.
• Columbus Day is observed on 2nd Monday in October.
• In 1774 Oxygen was discovered by Priestly.
• In 1589 William Lee invented knitting machine.
• More than 2000 years ago a Roman Ruler Julius Caesar invented the calendar that we use today.