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  1. Vacuum cleaner — 2020-08-15 09:16:01
    …House, Spa road at the age of nine. His father, Abraham Booth, was a lumber merchant. While travelling he witnessed a demonstration at '''St. Pancras Station''' of a new cleaning machine for railway carriages. This machine had a bunch of high-pressure…
    …o clean the carpet in '''Westminster Abbey''' in preparation for the coronation of Edward VII and Queen Alexandra. The demonstration was successful and as a result vast vacuum-cleaning units were installed in both '''Buckingham Palace''' and '''Windsor…
    …and the British Vacuum Cleaner Company earned the Royal Warrant of Appointment to His Majesty. Booth's next successful demonstration of the mobile cleaner was held at the '''Royal Mint'''. On the way back to headquarters a Police van stopped them and i…
  2. Cinematography — 2020-05-26 23:18:26
    …nted the patents Louis Le Prince mysteriously vanished. This meant Le Prince was never able to perform a planned public demonstration in the US. Coincidentally Edison had by now instructed his Scottish engineer, William Kennedy Dickson, to work on new i…
  3. Powered Flight — 2017-11-11 21:00:20
    …plane. Pilcher had successfully flown several gliders and trialed his plane for powered flight. Percy arranged for a demonstration of his powered flight to some dignitaries at Stanford Hall on 30th September in **1899**, but sadly due to an engine fa…
    …ilure, Pilcher, had to resort to flying his Hawk glider. The demonstration did not go to plan and Percy was critically injured, robbing him, and the world, of the first manned powered flight. P…
  4. Refrigeration — 2017-07-11 11:55:35
    …al refrigeration** was demonstrated by William Cullen at the University of Glasgow, [[Scotland]] in **1748**. In his demonstration, Cullen used a pump to create a small vacuum over a container of diethyl ether. When the deithyl ether began to boil, i…
  5. Radar — 2017-07-05 11:01:39
    …cation of aircraft by radio methods. The concept clearly had amazing potential and Watson-Watt was promptly asked for a demonstration. This was ready by February 26, and consisted of two receiving antennas located about 6 miles away from one of the BB…
    …ple witnessed the test, Watson-Watt, his assistant Arnold Wilkins, and a single member of the committee, A.P. Rowe. The demonstration was a success: on several occasions a clear signal was seen from the bomber. Most importantly, the prime minister, **St…
  6. Television — 2017-05-29 13:40:11
    …nsmitting moving silhouette images, such as his fingers wiggling, in his London laboratory. Baird gave the first public demonstration of moving silhouette images by television at Selfridges department store in London in a three-week series of demonstrat…
  7. Electric Generator — 2017-05-25 11:18:24
    … Induction == {{image url="First_motor.png" class="left" width="200" }} In 1821 Faraday creates two experiments for the demonstration of electromagnetic rotation. A vertically suspended wire moves in a circular orbit around a magnet. The Homopolar motor…
  8. Blood transfusion — 2017-05-23 21:23:32
    …od transfusion to treat haemophilia. == Beginnings of Transfusion == In the 1660s, the physician Richard Lower gave a demonstration of blood transfusion between animals in front of his distinguished colleagues from the Royal Society.…

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