engineering

Harold Stephen Black and the Negative-Feedback Principle

Harold Stephen Black and the Negative-Feedback Principle

On April 14, 1898, American electrical engineer Harold Stephen Black was born. Black discovered and developed the negative-feedback principle, in which amplification output is fed back into the input, thus producing nearly distortionless and steady amplification. His invention is considered the most important breakthrough of the twentieth century in the field of electronics, since it has a wide area of application. “The answer scrawled on a blank page in a daily…
Physicist Sir John Leslie

Physicist Sir John Leslie

On April 10, 1766, Scottish mathematician and physicist Sir John Leslie was born. Leslie is best remembered for his research into heat. He gave the first modern account of capillary action in 1802 and froze water using an air-pump in 1810, the first artificial production of ice. John Leslie entered the University of St Andrews and studied Divinity at Edinburgh University starting from 1784. During the following years Leslie worked…
Sir Benjamin Baker and the Forth Bridge

Sir Benjamin Baker and the Forth Bridge

On March 31, 1840, British civil engineer Sir Benjamin Baker was born. Baker worked in mid to late Victorian era and helped develop the early underground railways in London with Sir John Fowler, but he is best known for his work on the Forth Bridge. He made many other notable contributions to civil engineering, including his work as an expert witness at the public inquiry into the Tay Rail Bridge disaster.…
Sir Joseph William Bazalgette and the Great Stink of 1858

Sir Joseph William Bazalgette and the Great Stink of 1858

On March 28, 1819, British civil engineer Joseph William Bazalgette was born. As chief engineer of London‘s Metropolitan Board of Works Bazalgette‘s major achievement was the creation in response to the Great Stink of 1858 of a sewer network for central London which was instrumental in relieving the city from cholera epidemics, while beginning the cleansing of the River Thames. Joseph William Bazalgette was mainly educated at home and was employed to…
The Aircraft of Kelly Johnson

The Aircraft of Kelly Johnson

On February 27, 1910, American aeronautical and systems engineer Kelly Johnson was born. He is recognized for his contributions to a series of important aircraft designs, most notably the Lockheed U-2 and SR-71 Blackbird. Besides the first production aircraft to exceed Mach 3, he also produced the first fighter capable of Mach 2, and many other contributions to a large number of aircraft. Clarence Leonard Johnson was enthusiastic for aircraft…
William Grey Walter and his Machina speculatrix

William Grey Walter and his Machina speculatrix

On February 19, 1910, British neurophysiologist and robotician William Grey Walter was born. Walter is best known for linking learning with a particular brain wave as revealed by measurements by electroencephalograph. But his most famous work was his construction of some of the first electronic autonomous robots. Even though William Walter was birn in Kansas City, he moved to England at the age of five and attended first Westminster School and…
Henry Martyn Leland and his Motorcars

Henry Martyn Leland and his Motorcars

On February 16, 1843, American machinist, inventor, engineer and automotive entrepreneur Henry Martyn Leland was born. Leland founded Cadillac Motors (22 Aug 1902) to build the Cadillac, the first automobile with high-precision, fully-interchangable parts. During WW I, he formed a new company to manufactured aircraft engines, which after the war he produced a new automobile: the Lincoln. “Mr. Sloan, Cadillacs are made to run, not just to sell.”, Henry Martin…
Konstantin Feoktistov, Space Engineer

Konstantin Feoktistov, Space Engineer

On February 7, 1926, Soviet cosmonaut and an eminent space engineer Konstantin Petrovich Feoktistov was born. Feoktistov was part of the team that would go on to design the Sputnik, Vostok, Voskhod, and Soyuz spacecraft under the leadership of Sergey Korolev. He trained as a cosmonaut, and eventually launched 12 Oct 1964 for 16 earth orbits as one of the crew of Voskhod 1 (with Vladimir Komarov and Boris Yegorov),…
The Inventions of Luther George Simjian

The Inventions of Luther George Simjian

On January 28, 1905, Armenian-American inventor Luther George Simjian was born. Simjian probably is best known for his invention of the Bankmatic Automated Teller Machine. His more than 200 inventions also included the TelePrompter, a self-posing portrait camera, automatic postage metering equipment, and an indoor golf practice range. Luther Simjian emigrated to the United States in 1920 and started to work as a photographer at the age of 15 and…
Thomas Sopwith and his legendary aircrafts

Thomas Sopwith and his legendary aircrafts

On January 18, 1888, English aviation pioneer and yachtsman Thomas Octave Murdoch Sopwith was born. Sopwitth’s pioneering firm was famous for British WWI military aircraft, including the legendary Sopwith Camel. Thomas Sopwith was interested in motor cycles from early age and took part in the 100-mile Tricar trial in 1904 and was among the four medal winners. His first ascent with a hot air balloon was two years later and along with Phil…
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