1. Mayday — 2023-10-08 00:53:45

   …r sound that both English and French pilots were familiar with Mockford suggested **Mayday**. In 1924, the **Book of Wireless Telegraphy** identified **‘Mayday’** as the international distress call. {{Image url="FrederickMockfordGrave.…

2. Hovercraft — 2023-10-07 09:48:35

   … at Peterhouse, Cambridge. After Cambridge he worked for the Radio Research company until 1935 and then for the Marconi Wireless Telegraph company from 1935 until 1951. {{Image url="PrototypeHovercraft.jpg" class="left" title="Cockerell Proto…

3. Vacuum Tube — 2023-09-23 15:57:19

   …s early valve" width="200" }} The vacuum tube brought the dawn of the age of **electronics**. Its invention enabled the wireless technology of the day to move forward. The valve was pivotal in laying the foundations of what we call electronic…

4. Telephone — 2023-09-23 15:57:07

   …ventions. One day while they were working Bell accidently heard the sound of a plucked reed * coming over the telegraph wire. Watson had been tuning the metal reeds in the next room. Bell drew up a plan for the telephone and they continued to e…

5. Telegraph — 2023-09-23 15:56:52

   …lt by English inventor Francis Ronalds in **1816** at 26 Upper Mall in Hammersmith, [[London]] . He laid eight miles of wire insulated in glass tubing in his garden and connected both ends to two clocks marked with the letters of the alphabet. …
   …aldsTelegraph.jpg" class="left" title="Ronalds Telegraph" width="300" }} Static electrical impulses were sent along the wire were used to transmit messages. To communicate messages Ronalds had made two identical clock-like machines, each with a…

6. Radio — 2023-09-23 15:56:24

   … ever wireless communication over open sea." }} The experiment witnessed a message transversed over the Bristol Channel from Flat …
   …==1897 == {{Image url="MarconiFactory.jpg" title="Marconi Factory" class="right" width="250" }} Marconi established The Wireless Telegraph & Signal Company which became the Marconi Company. On 17 December 1902, a transmission from the Marconi …

7. Electric Motor — 2023-09-23 15:52:02

   …is **first electromagnet**. He displayed its power by lifting nine pounds with a seven-ounce piece of iron wrapped with wire through which a current from a single battery was sent. == Motor == {{image url="Modern_Electric_Motor.jpg" class="rig…

8. Electric Generator — 2023-09-23 12:04:37

   …ade one of his greatest discoveries - electromagnetic induction: the "induction" or generation of electricity in a wire by means of the electromagnetic effect of a current in another wire. The induction ring was the **first electric transf…
   …he discovered magneto-electric induction: the production of a steady electric current. To do this, Faraday attached two wires through a sliding contact to a copper disc. By rotating the disc between the poles of a horseshoe magnet he obtained a…

9. Loudspeaker — 2021-11-07 21:26:37

   …/'transmitter'// for his telephone in 1877 that was improved by Siemens. It used a permanent bar magnet with a coil of wire wrapped around it, and an iron diaphragm using harmonic vibrations. …

10. Light Bulb — 2021-08-09 21:56:27

    …hry Davy**, an English scientist. He experimented with electricity using an immense electric battery. When he connected wires to his battery and a piece of carbon, the carbon glowed, producing light. But this was more like an electric arc than …
    …00" }}<< - 1761 : Ebenezer Kinnersley from Gloucester experimented with electrostatically charged capacitors to heat a wire to incandescence. - 1802 Humphry Davy used huge batteries to pass current through a thin strips of platinum. - 1835,…

11. Powered Flight — 2021-04-05 22:36:49

    …ociety of Great Britain''' (founded in 1866) at the Crystal Palace, London, in 1868. The plane was flown indoors from a wire unmanned at twenty miles per hour in front of the Prince of Wales and the Duke of Sunderland. The exhibition gave wor…

12. Toothbrush — 2021-01-28 15:14:07

    …all brush handle from bone. He drilled holes into the bone handle and inserted boar bristles that were held in place by wire. Addis starting mass-producing his contraption after leaving prison in Whitechapel, east [[London]], [[England]]. == P…

13. Reinforced Concrete — 2020-08-17 08:53:02

    …rcing-of-Concrete.jpg" class="left" title="Concrete being poured onto Reinforcing" width="500" }} He used iron bars and wire rope to reinforce the concrete based on broken coke, sand and Portland cement in the floors of a two-story cottage he w…

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