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ELECTRICITY MODULES Through Cognitive Learning

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1600 - William Gilbert researches static electricity. 1745 - Pieter van Musscenbroech created ... 1820 - Hans Christian Oersted links magnetism and electricity ... – PowerPoint PPT presentation

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Title: ELECTRICITY MODULES Through Cognitive Learning


1
ELECTRICITY MODULES(Through Cognitive Learning)
  • ENGINEERING TECHNOLOGY

2
MODULE 1 - ELECTRICITY
  • Devices
  • Shock
  • Burning
  • Chemical
  • Electro-Magnetic
  • Equipment
  • Power Lines
  • Toasters
  • Electroplating Solar Cells
  • Motors

3
Electronics - History
  • 1600 - William Gilbert researches static
    electricity
  • 1745 - Pieter van Musscenbroech created Leyden
    jar - the first capacitor
  • 1752 - Benjamin Franklin defines positive and
    negative charge
  • 1784 - Charles Coulomb demonstrates the force
    between charges

4
  • 1791- Luigi Galvani reveals electricity in every
    animal
  • 1799 - Alessandro Volta makes first battery
  • 1820 - Hans Christian Oersted links magnetism and
    electricity
  • 1820 - Andre Ampere demonstrates that a current
    carrying conductor has a magnetic effect and
    conductors can attract or repel each other

5
  • 1827 - George Ohm introduced a relationship
    between voltage, current and resistance
  • 1831 - Michael Faraday demonstrated
    electromagnetic induction - a changing current in
    one coil causes a changing current in an adjacent
    coil
  • 1850s - Gustav Robert Kirchhoff -introduced a
    series of laws about voltage and current

6
  • 1862 - James Clerk Maxwell developed the
    equations to describe Faradays work and much more
  • 1888 - Heinrich Rudolph Hertz showed that
    Maxwells predictions were correct
  • 1895 - Wilhelm Rontgen discovered X-rays by 1900
    the equations, laws and relationships had been
    established - now electronics, power generation
    and calculating equipment could be developed

7
Radio
  • 1883 - Thomas Edison invents the valve
  • 1887 - Heinrich Hertz transmits a radio wave
  • 1896 - Guglielmo Marino sends telegraph signals
    through the air
  • 1896 - Aleksandr Popov sends first radio message
  • 1901 - Marconi establishes radio communication
    across the Atlantic

8
  • 1904 - John Ambrose Fleming creates first diode
  • 1906 - Lee De Forest creates first amplifier
  • 1912 - Edwin Armstrong built the first
    regenerative circuit and first non-mechanical
    oscillator
  • 1915 - radio signals transmitted across USA
  • 1918 - Armstrong patents superheterodyne circuit

9
Television
  • 1927 - John Logie Baird transmits TV over
    telephone lines
  • 1928 - Baird transmits TV over radio waves
  • 1930 - Baird transmits pictures and sound
  • 1932 - NBC installs first TV antenna
  • 1939 - RCA begins regular broadcasting
  • 1960s - colour TV

10
Computers
  • 1642 - Blaise Pascal creates mechnical adding and
    subtracting machine
  • 1673 - Gottfried Wilhelm von Leibniz adds
    multiplication and division
  • 1823 - Charles Babbage adds trigonometric
    functions
  • 1937 - IBM joins computer industry
  • 1946 - University of Pennsylvania creates first
    electronic computer

11
Solid- State Era
  • 1947 - William Shockley, John Bardeen and Walter
    H. Brattain invent the transistor
  • 1958 - Texas Instruments develops the first
    integrated circuit (IC)
  • 1961 - Fairchild Instruments makes first
    commercial IC
  • 1972 - Intel Corporation makes the first
    microcomputer
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