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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 ...
Inventions that are credited to the ancient Greeks include the gear, screw, rotary mills, bronze casting techniques, water clock, water organ, the torsion catapult, the use of steam to operate some experimental machines and toys, and a chart to find prime numbers. Many of these inventions occurred late in the Greek period, often inspired by the ...
This practice has existed in some form for centuries; in ancient Egypt, for example, when grain was often used as currency, local granaries would store and distribute the community's food supply. [2] Since that time, a variety of community banking models have evolved.
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 ...
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.
The Ptolemaic system of celestial motion as depicted in the Harmonia Macrocosmica (1661). Science in classical antiquity encompasses inquiries into the workings of the world or universe aimed at both practical goals (e.g., establishing a reliable calendar or determining how to cure a variety of illnesses) as well as more abstract investigations belonging to natural philosophy.
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Pont du Gard (1st century AD), over the Gardon in southern France, is one of the masterpieces of Roman technology. Ancient Roman technology is the collection of techniques, skills, methods, processes, and engineering practices which supported Roman civilization and made possible the expansion of the economy and military of ancient Rome (753 BC – 476 AD).