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1928: Frank Whittle formally submitted his ideas for a turbo-jet engine. In October 1929, he developed his ideas further. [468] On 16 January 1930, Whittle submitted his first patent (granted in 1932). [469] 1928: Philo Farnsworth demonstrates the first practical electronic television to the press. 1929: The ball screw is invented by Rudolph G ...
Among those inventions that are credited with passing into general practical use are the strut bridge, the automated bobbin winder, the rolling mill, the machine for testing the tensile strength of wire and the lens-grinding machine pictured at right. In the lens-grinding machine, the hand rotation of the grinding wheel operates an angle-gear ...
1785: The lifeboat invented and patented by Lionel Lukin (1742–1834); William Wouldhave (1751–1821) made a rival claim, but he did not succeed with the practical application of his invention until 1789. 1799: The Transit, a type of sailing vessel with a remarkable turn of speed, patented by Richard Hall Gower (1768–1833).
500 BC: Hippasus, a Pythagorean, discovers irrational numbers. [27] [28] 500 BC: Anaxagoras identifies moonlight as reflected sunlight. [29] 5th century BC: The Greeks start experimenting with straightedge-and-compass constructions. [30] 5th century BC: The earliest documented mention of a spherical Earth comes from the Greeks in the 5th ...
Crafts are a physical manifestation of the internal human creative impulse and typically involves the use of hands to create the artform. One of the visual arts – visual arts is a class of art forms, including painting, sculpture, photography, printmaking and others, that focus on the creation of works which are primarily visual in nature.
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Painting of the Royal Institution by Thomas Hosmer Shepherd circa 1838. Founded in 1799 with the stated purpose of "diffusing the Knowledge, and facilitating the general Introduction, of Useful Mechanical Inventions and Improvements; and for teaching, by Courses of Philosophical Lectures and Experiments, the application of Science to the common Purposes of Life," the Royal Institution was a ...
Public Domain. In the 1930's, Nikola Tesla, who is known for creating the induction motor and refining AC currents, imagined a machine that would allow you to project a mental image in real life ...