ELECTRICITY MODULES Through Cognitive Learning

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ELECTRICITY MODULES(Through Cognitive Learning)

• ENGINEERING TECHNOLOGY

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MODULE 1 - ELECTRICITY

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

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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

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• 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

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• 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

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• 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

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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

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• 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

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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

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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

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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