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Giant cucumber in a bottle. Focus Secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

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Focus Description:

Surely you have seen bottles with a narrow neck, inside of which there is a model of a sailboat. It is difficult even to stop the complexity and scrupulousness of the work of the creator of this layout.

But the sight of a huge cucumber, in an incomprehensible way, got into a bottle (it is impossible to imagine how it crawled into the neck) always causes even more surprise.

Focus secret:

The magician prepared ahead of time - he put the cucumber in a bottle when it was very small - but did not pick it, but allowed it to grow. Here is a cucumber and grew inside the bottle.

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Random news from the Archive

Ice as fuel for satellites 26.03.2015

Scientists from the Delft University of Technology (Netherlands) have developed a fuel system for small artificial satellites CubeSat, thanks to which the devices will be able to move in space due to the molecules of evaporating ice.

Lightweight and low-cost CubeSats are extremely small spacecraft. A typical cubic module with a face length of only 10 centimeters weighs about a kilogram, while the range of tasks performed by CubeSat is quite wide, from monitoring the atmosphere to searching for exoplanets. Such satellites are usually launched with the help of "passing" carrier rockets or from the board of manned and automatic cargo spacecraft and orbital stations. The only drawback of CubeSat is the lack of its own engine, which significantly limits their capabilities.

To solve this problem, Dutch engineers designed an ice-powered engine: 100 grams of ice is loaded into the CubeSat, which begins to evaporate in space and release steam molecules. The use of a heating element speeds up the steam release process and thus gives the satellite a driving force. On such an "ice" engine CubeSat, according to calculations, will be able to fly for several years.

A prototype satellite is under development, but for now, scientists have to figure out how to get ice into orbit so that it stays ice. There is also an option to freeze water directly in orbit, but this will significantly complicate and make the design heavier. However, other groups of scientists are working on engines for the CubeSat in parallel, and it is not known which system will be the winner.

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Comments on the article:

Angelina
Thank you! Very interesting for future scientists, engineers, people interested in science and physics!


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