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  1. Vacuum cleaner — 2018-12-26 13:21:55
    …he machine toured the streets with a team of of men in white drill suits. On finding a potential customer, the salesmen demonstrated their wares by throwing street dirt onto people's carpets. The petrol motor started, and long hoses were strung in thro…
  2. Electric Motor — 2018-10-10 01:15:13
    …Motor == {{image url="Modern_Electric_Motor.jpg" class="right" width="250" }} After [[Electric_Generator| Faraday]] had demonstrated his homopolar motor in 1821, physicists were excited to make the electric motor a useful, stronger device. Over the nex…
    … In 1832 he was appointed to the lecturing staff of the Adelaide Gallery of Practical Science in London, where he first demonstrated the DC electric motor incorporating a commutator. == Improved Battery == The Volta cell had certain inherent weakness…
  3. Powered Flight — 2017-11-11 21:00:20
    …{Image url="1868Exhb.jpg" class="left" width="300" title="Stringfellows model at the Great Exhibition" }} Stringfellow demonstrated a steam-powered triplane at an exhibition arranged by the '''Aeronautical Society of Great Britain''' (founded in 1866)…
  4. Light Bulb — 2017-11-08 12:25:58
    …14" }} === Joseph Wilson Swan 1878 === ~-[[CategoryIndustry]]::[[CategoryDomestic]]:: {{{toc}}} Sir Joseph Wilson Swan demonstrated and patented the first practical electric lamp in 1878. Swan was born in **1828** at Pallion Hall in Bishopwearmouth (…
    … long-lasting electric light. He found that a carbon paper filament worked well, but burned up quickly. In **1878**, he demonstrated his new electric lamps in **Newcastle**, England. Swan pursued his search for a more durable filament, he decided to u…
    … 1802 Humphry Davy used huge batteries to pass current through a thin strips of platinum. - 1835, James Bowman Lindsay demonstrated a constant electric light at a public meeting in Dundee, Scotland. - 1840, Warren de la Rue used a platinum coil in an…
  5. Stereo — 2017-09-28 17:47:43
    … to each other and 45 degrees to the vertical. - A stereo disc-cutting head. ::c:: >> //Binaural transmission had been demonstrated by Clement Ader. He used pairs of microphones in front of the Paris Opera stage in 1881, and the wealthy few could u…
  6. Refrigeration — 2017-07-11 11:55:35
    …death_place="Edinburgh" }} === William Cullen 1748 === ~-[[CategoryScience]] The first **artificial refrigeration** was demonstrated by William Cullen at the University of Glasgow, [[Scotland]] in **1748**. In his demonstration, Cullen used a pump t…
  7. Computer — 2017-07-10 17:37:14
    …e Engine**', a machine which could perform mathematical calculations. A six-wheeled model was initially constructed and demonstrated to a number of audiences. He then developed plans for a bigger, better, machine - Difference Engine 2. He also worked o…
  8. Vaccination — 2017-07-09 10:30:27
    … the 20th century when photography became feasible and Jenner was **proved correct**. Having observed the behaviour, he demonstrated an anatomical adaptation for it—the baby cuckoo has a depression in its back which is not present after 12 days of li…
  9. Microphone — 2017-06-21 00:40:34
    …k even today. {{Image url="Hughes_carbon_microphone.png" class="right" title="Hughes carbon microphone" width="" }} He demonstrated his apparatus to the Royal Society by magnifying the sound of insects scratching through a sound box and there were man…
  10. Sparkling Wine — 2017-06-11 14:08:47
    …goryFood Food & Drink]]: {{{toc}}} **Christopher Merret** (1614 – 1695) was an English physician and scientist. He demonstrated his method to add sparkle to wine in 1662. Merret was born in Winchcombe [[Gloucestershire]] [[England]]. Although Bri…
  11. Television — 2017-05-29 13:40:11
    …n 1931. {{Image url="Baird_tv.jpg" class="right" title="John Logie Baird with his television" }} == Big screen == He demonstrated a theatre television system, with a screen two feet by five feet, in 1930 at the London Coliseum, Berlin, Paris, and St…
  12. Steam Engine — 2017-05-23 20:30:35
    …''Thomas Savery''' (the "fire-engine", 1698) but it was '''Thomas Newcomen''' and his "atmospheric-engine" of 1712 that demonstrated the first operational and practical industrial engine. Together, Newcomen and Savery developed a beam engine that worke…
  13. Tank — 2016-05-16 11:27:53
    …neer , **David Roberts**, developed a **Caterpillar track** system for vehicles that was **patented in 1904**. This was demonstrated to the British Army. Due to a lack of interest he sold the patent to Holt & Co. (predecessor to Caterpillar Inc.) in A…

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