Electricity Timeline

By melvinj
  • Ohm's Law

    Ohm's Law
    Georg Ohm defined the relationship between power, voltage, current and resistance in “Ohms Law.”
  • Electrical Relay

    Electrical Relay
    Joseph Henry invented the electrical relay, used to send electrical currents long distances.
  • Electric Motor

    Electric Motor
    Thomas Davenport invented the electric motor, an invention that is used in most electrical appliances today.
  • Fuel Cell

    Fuel Cell
    Sir William Robert Grove developed the first fuel cell, a device that produces electrical energy by combining hydrogen and oxygen.
  • Electric Graph

    Electric Graph
    Samuel Morse invented the electric telegraph, a machine that could send messages long distances across wire.
  • "Open Coil" Dynamo

    "Open Coil" Dynamo
    Charles Brush invented the “open coil” dynamo (or generator) that could produce a study current of electricity.
  • Incandescent Lightbulb

    Incandescent Lightbulb
    Joseph Swan, and Englishman, invented the first incandescent lightbulb (also called an “electric lamp”).
  • Electric Street Car

    Electric Street Car
    The electric streetcar was invented by E.W. v. Siemens.
  • Electric A/C

    Electric A/C
    Electric air conditioning – W. Carrier.
  • Nuclear Power Plant

    Nuclear Power Plant
    Shippingport Reactor in Pennsylvania was the first nuclear power plant to provide electricity to customers in the U.S.