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What can you use to pop bubble wrap in endless mode? Detailed answer

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What can you use to pop bubble wrap in endless mode?

A Japanese company has developed a keychain called Mugen Puchipuchi, with one surface made up of eight protrusions. Pressing them causes a tactile effect, similar to the bursting of a bubble wrap, accompanied by the corresponding sound. Every XNUMXth press brings on a different random sound - like a doorbell or a dog barking.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

What was the Tower of Babel made of?

Imagine that you live in ancient times in the legendary city of Babylon. You are tired of your old little house and you decide to build a big good house. It turns out that you could easily, as if in modern times, buy a brick for construction. There were several brick factories in Babylon, and each factory marked its bricks with a special stamp.

Babylon itself was surrounded by three rows of massive brick walls, and the famous Tower of Babel (according to legend, it began to be built four thousand years BC) was erected from dried raw clay brick, reinforced with palm leaves.

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Shape memory wool fabric 22.06.2021

Materials that have the ability to return to their original state after deformation are widely used in the aerospace industry, robotics, and even fashion.

Researchers at Harvard University have managed to create a new material from wool waste with properties that allow it to be used to create shape-changing clothing.

The basis of the material is the fibrous protein keratin, contained in hair, nails, mollusk shells, and also in wool. Keratin has a number of useful properties that may be of interest to materials scientists, since it forms a helical structure in the form of a single chain - the alpha helix. By combining them in sufficient quantities, the scientists obtained a strong fiber with shape memory.

The researchers started by 3D printing variously shaped keratin sheets, programming their "initial" state by placing them in a solution of hydrogen peroxide and monosodium phosphate. By exerting various types of influence on the sheets, the material can be given a variety of shapes for some time.

For example, in one experiment, the team rigidly "fixed" a keratin sheet in the shape of an intricate origami star. However, when the star was placed in water, it turned around and became malleable, allowing scientists to roll it up into a tight tube. Further, as it dried, the shape of the tube became its new stable structure, but after the next "water procedures" the tube again turned into an origami star.

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