Who knew the mechanism of the helicopter before our era? Detailed answer

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Who knew the mechanism of the helicopter before our era? Detailed answer

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Who knew the mechanism of the helicopter before our era?

Helicopter rotor - a mechanism that acquires lift from rotation - was invented in China in the 4th century BC. e. It was used in a toy, which was a plank specially carved from bamboo, mounted on an axis, the sharp rotation of which lifted the structure into the air. This helicopter was known in Renaissance Europe - it is fixed on some canvases and, in particular, drawings by Leonardo. Later experiments with the toy influenced the development of the ideas of George Cayley, considered the father of modern aeronautics.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

What could the 1912 automaton, considered the world's first computer game, do?

In 1912, long before the advent of the prototypes of modern computers, the Spanish engineer Leonardo Torres y Quevedo designed the electromechanical machine "El Ajedrecista", which is considered the first computer game in history. The device was a chessboard with a king and a rook moved by a machine with the help of electromagnets, as well as a king of a different color, which was moved by a person. The automaton, albeit not in the minimum number of moves, was guaranteed to complete this chess endgame with checkmate to the opponent.

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3D printer to make sports car seats 23.03.2020

Currently, car manufacturers offer seats that are identical in their configuration for production cars and only a few brands include sports seats in the list of options, but the ability to fit them to the figure is limited by the presence of regular adjustments.

At the same time, personal lodgements have long been used in motorsport, which are created taking into account the characteristics of the anthropometric data of a particular pilot. The Porsche brand decided to introduce this technology, albeit in a somewhat truncated form, into road cars, taking 3D printing technology as a basis.

Customers will be offered the option to "customise" the seat to themselves by choosing a bucket seat with printed elements. The chair will be based on a standard frame, which will be complemented by a base made of foamed polypropylene, a breathable core made using 3D printing from polypropylene material and upholstery made of Racetex synthetic material. At the same time, buyers will be given the opportunity to choose the level of stiffness of the padding (hard, medium, soft) and the color of the material, as part of the 3D elements will be exposed through the "windows" in the upholstery.

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