Question: What did the technical device made by the british aeronautical engineer during the second world war do? 

Context articles: Harry Wimperis
Frank Barnwell
Miss Shilling's orifice
Earthquake bomb
Tallboy (bomb)
Lawrence Coombes
Beatrice Shilling
John Stamper
Gordon Lewis (engineer)
Elsie MacGill

Harry Egerton Wimperis {'1': ", '2': ", '3': ", '4': "} (27 August 1876 – 16 July 1960) was a British aeronautical engineer who acted as the Director of Scientific Research at the UK's Air Ministry prior to World War II.
 He is best known for his role in setting up the Committee for the Scientific Survey of Air Defence under Henry Tizard, which led directly to the development and introduction of radar in the UK.
 He is also known for the development of the Drift Sight and Course Setting Bomb Sight during World War I, devices that revolutionized the art of bombing.
Captain Frank Sowter Barnwell OBE AFC FRAeS BSc (1880 – 2 August 1938) was a British aeronautical engineer.
 With his elder brother Harold he built the first successful powered aircraft made in Scotland and later went on to a career as an aircraft designer with the Bristol Aeroplane Company, designing aircraft such as the Bristol Fighter, the Bulldog and the Blenheim.
Miss Shilling's orifice was a very simple technical device made to counter engine cut-out in early Spitfire and Hurricane fighter aeroplanes during the Battle of Britain.
 While it was officially called the R.A.E. restrictor, it was normally referred to under various names, such as Miss Tilly's diaphragm or the Tilly orifice in reference to its inventor, Beatrice "Tilly" Shilling.
The earthquake bomb, or seismic bomb, was a concept that was invented by the British aeronautical engineer Barnes Wallis early in World War II and subsequently developed and used during the war against strategic targets in Europe.
 A seismic bomb differs somewhat in concept from traditional bombs, which usually explode at or near the surface, and destroy their target directly by explosive force.
 In contrast, a seismic bomb is dropped from high altitude to attain very high speed as it falls and upon impact, penetrates and explodes deep underground, causing massive caverns or craters known as "camouflets", as well as intense shockwaves.
 In this way, the seismic bomb can affect targets that are too massive to be affected by a conventional bomb, as well as damage or destroy difficult targets such as bridges and viaducts.
Tallboy, or Bomb, Medium Capacity, 12,000 lb, was an earthquake bomb developed by the British aeronautical engineer Barnes Wallis and used by the RAF during the Second World War.
Lawrence Percival Coombes {'1': ", '2': ", '3': ", '4': "} (9 April 1899 – 3 June 1988) was a British aeronautical engineer who served as the first Chief Superintendent of the Australian Aeronautical Research Laboratories from 1938 until 1964.
 He had previously worked at the Royal Aircraft Establishment from 1924, and during World War I had served a pilot in the Royal Naval Air Service and Royal Air Force, becoming a flying ace credited with 15 aerial victories.
Beatrice (Tilly) Shilling OBE PhD MSc CEng (8 March 1909 – 18 November 1990) was a British aeronautical engineer and motor racer.
 During the Second World War, she invented "Miss Shilling's orifice", a small metal disc similar to a metal washer that restricted fuel flow to the carburetor helping prevent engine stall in the Rolls-Royce Merlin engines of the Hawker Hurricane and Supermarine Spitfire fighters, which could lose power or even completely cut out during certain manoeuvres; a significant disadvantage in active service.
John Trevor Stamper FREng FRAeS (12 October 1926 – 15 November 2003) was a British aeronautical engineer who was Corporate Technical Director of British Aerospace from 1977 to 1985 and chief designer of the Blackburn Buccaneer strike aircraft.
Gordon Manns Lewis CBE FREng (24 June 1924 – 4 October 2010) was a British aeronautical engineer who made significant contributions to the arts and sciences of turbine engine design.
Elizabeth Muriel Gregory "Elsie" MacGill, OC (March 27, 1905 – November 4, 1980), known as the "Queen of the Hurricanes", was the world's first woman to earn an aeronautical engineering degree and was the first woman in Canada to receive a bachelor's degree in electrical engineering.
 She worked as an aeronautical engineer during the Second World War and did much to make Canada a powerhouse of aircraft construction during her years at Canadian Car and Foundry (CC&F) in Fort William, Ontario.
 After her work at CC&F she ran a successful consulting business.
 Between 1967–1970 she was a commissioner on the "Royal Commission on the Status of Women in Canada", published in 1970.