Where did the word silhouette come from? Detailed answer

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Where did the word silhouette come from? Detailed answer

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Where did the word silhouette come from?

In 1759, the French minister Étienne de Silhouette imposed severe economic restrictions due to the financial crisis caused by the Seven Years' War. It was from his surname that the name of the silhouettes - portraits cut out of black paper - came from, since, firstly, they were much cheaper than paintings, and secondly, the minister himself was fond of making such portraits.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Why is updating a computer program called a patch?

An update of a computer program that eliminates identified errors is called a patch, which literally means "patch" in English. This term arose when the main carrier of information in computer systems was still punched cards and punched tapes - paper reels with holes punched in the right places, which were read and converted into machine code. The developer of the program sent the corrected section of the punched tape to the users, and they themselves cut out the erroneous fragment and pasted the "patch".

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The first wooden satellite will be sent into space 15.06.2021

The world's first wooden satellite will be launched into space this year. The WISA Woodsat satellite measures approximately 10x10x10 cm and weighs approximately 1 kg. It is made of birch plywood with a special coating (WISA). The device is powered by nine small solar panels.

The wooden satellite will be launched as part of a mission developed by the Finnish company Arctic Astronautics, which makes cubesat kits for students. It will be launched into polar orbit by the Electron Rocket Lab rocket in November of this year. The purpose of the mission is to test the behavior and durability of plywood panels in extreme space conditions and evaluate their suitability for future missions.

The satellite will be equipped with two cameras, one of which will be attached to a metal selfie stick, allowing the mission team to observe how the surface of the satellite's plywood changes in the space environment.

"The base for plywood is birch, and we use basically the same stuff you find at a hardware store or for making furniture. Regular plywood is too wet to use in space, so we put our wood in a thermal vacuum chamber to dry it first. Then we apply molecular layering by adding a very thin layer of alumina, which is often used to encapsulate electronics," explained Woodsat chief engineer Samuli Nyman.

On June 12, the prototype satellite was launched into the stratosphere to a height of 31,2 km. The flight lasted 2 hours 54 minutes.

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