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1600 - William Gilbert invents the "electroscope" and conducts studies on magnetism. Establishes

a connection between static electricity and magmetismo. 1678 - The mathematician Huygens announces the wave theory of light. 1729 - Stephen Gray and Wheeler Granvil build the first power line (in England). This done, using a hemp rope soaked with 200 meters long. 1745 - P. Musschenbroek van Leyden discovers the famous Leyden jar, the first capacitor. 1780 - Galvani experiments with rans on electricity animal. 1799 - Alechandre Volta discovers the stack. 1800 - Von Ritter observes the chemical telegram mews effects of electricity. 1819 - Hans Christian Oersted (Denmark) observed the magnetic properties of an electric current. telegram mews 1821 - Andre Marie Ampere (France) established the relationship between electricity and magnetism. 1825 - Georg Simon Ohm (Germany) lays down the law that bears his name "OHM". Proposed the relation R = V / I, who became known as the law of OHM - The current flowing in a circuit with resistance of 1 Ohm subjected to a voltage of 1 volt is 1 Ampere. 1831 - Michael Faraday (England) and Joseph Henry (USA) discover the "electromagnetic induction" between two separate circuits. The publication of the work of Faraday en November 1931, preceded Henry in a few months. 1837 - Samuel FB Morse (USA) displays and tests the first device with telegraph wires at a distance of 500 meters. 1838 - KA Steinheil Munich, telegram mews shows that one of the two wires used in telegraphy could be dispensed using a wire "land". He looked forward to a time when the second wire could also be eliminated, and 'wireless' could be used. 1840 - Morse builds a new telegraphic alphabet. Joseph Henry produces high-frequency oscillations and proves that the charge of a capacitor is oscillating. 1842 - Joseph Henry draws attention to the oscillatory discharges "Leyden telegram mews jar" or condenser (The effect was noticed by Henry probably due to induction with a small or no effect of electromagnetic radiation). Alexander Bain (England) invented the telegraph recording electrochemical who established the principles of recording Facsimile. 1844 - Samuel telegram mews FB Morse sends, on 24 May, the first message by telegraph distance - about 40 miles. The message telegram mews - "May telegram mews God be praised!" The Telegraph through wires and Morse Code is the first system of long-distance communication the world has known. 1846 - Faraday suggests that light and electricity can be different manifestations of the same force. 1850 - Daniel Ruhmkoff, German mechanic, constructs a device that turns the induction of a low-voltage battery telegram mews at high voltage. Was used as the first emitter of electromagnetic telegram mews waves. 1853 - Julius Wilhelm Gintl, Australian physicist, demonstrates that it is possible to send alert of a telegraph line, multiple messages simultaneously. 1858 - Enters into operation the first transatlantic submarine cable. The cable failed after a few weeks of operation. The first cable was successfully launched in 1866. 1863 - In Cambridge, England, James Clerck Maxwell, professor telegram mews of experimental physics, theoretically demonstrated the likely existence of electromagnetic waves, without finding practice. It was the first to establish the fundamental concept of electromagnetic waves by pure mathematical deduction. His work resulted telegram mews in 1864 the Maxwell equations which indicated the existence of electromagnetic waves that were later demonstrated in the laboratory by Hertz. By these equations, Maxwell showed the speed of light that established in 3 x 1010cm / s. Maxwell believed that light was a form of electromagnetic radiation. 1864 - James Clerk Maxwell formulated the "Maxwell's Equations" which deals with the actions of electromagnetic waves.

telegram mews 1865 - Mahlon Loomis transmits wireless telegraph messages between two mountains in Virginia. 1867 - Siemens built the first dynamo. 1870 - Von Bezold discovered that the discharge of a capacitor produces interference. 1872 - On July 30, the Patent is granted to Mahlon Loomis 129.971 by the U.S. Government for a form of wireless communication. 1874 - Branly makes the first power transmission, lighting of Paris, London enlightenment. Karl Ferdinand Braun shows that the current flow through a crystal of "carborundun" is smaller in one direction. 1875 - Established the first permanent service of cable news. Alechandre Graham Bell invents a microphone (magnetic transducer) that could also work as a headset. Werner Siemens shows that electricity travels along a wire with a vel