Science Q4

• Thalus of Miletus lived

  620 BC - 546 BC
• Thalus of Miletus was one of the Seven Wise Men
• Thalus of Miletus discovered Static Electricity in 500 BC by rubbing fur on amber
• Luigi Galvani lived


  1737 - 1798
• Luigi Galvani


  ForeFather of Bioelectric Magnetics
• Luigi Galvani discovered Animal-Electricity by accident through experimentation with frogs
• William Gilbert lived


  1544 - 1603
• William Gilbert invented the first electroscope
• William Gilbert established the concept of the earth’s Magnetic Field
• Thomas Edison lived


  1847 - 1931
• Thomas Edison’s inventions


  • Phonograph
  • Carbon-Button Transmitter
  • Incandescent Lamp
• Alexander Graham Bell lived


  1847 - 1922
• In 1876, Alexander Graham Bell invented the Telephone or “Electric Speech Machine”
• Telephone


  Converting sound waves into electrical signal
• Michael Faraday lived


  1791 - 1867
• Michael Faraday


  Father of Electricity
• Michael Faraday discovered the electromagnetic induction
• Michael Faraday created the Law of Induction
• Michael Faraday invented the first electric generator
• George Ohm lived


  1789 - 1854
• George Ohm formulated Ohm’s Law in 1827
• Ohm’s Law


  Principle in the study of electrical circuits
• Joseph John Thomson lived


  1856 - 1940
• Joseph John Thomson discovered the Electron in 1897
• Joseph John Thomson reshaped the understanding of atomic structure using magnetic fields and cathode ray tubes
• Nikola Tesla lived


  1856 - 1943
• Nikola Tesla developed the Alternating Current (AC)
• Alternating Current (AC)


  Standard for electricity distribution; direction of flow of electrons switches back and forth
• Humphrey Davey lived


  1778 - 1829
• Humphrey Davey invented the first electric light by creating an incandescent lamp using a strip of charcoal between two electrodes
• Joseph Swan lived


  1828 - 1914
• Joseph Swan developed a Practical Incandescent Lamp
• Joseph Swan's first prototype was a fail
• Joseph Swan's second attempt involved squeezing nitro-cellulose through holes to form fibers used as filaments
• John Fredric Daniell

  • 1790 - 1845
• • Daniell Cell is a type of electrochemical cell invented in 1836
  • can be used to ‘generate electricity’ by consuming an electrode, or to store electricity.