Watching what movie inspired physicists to new scientific publications about black holes? Detailed answer

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Watching what movie inspired physicists to new scientific publications about black holes? Detailed answer

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Watching what movie inspired physicists to new scientific publications about black holes?

Physicist Kip Thorne was the scientific adviser to the writers of Interstellar. To realistically visualize a spinning supermassive black hole and the gravitational lens it forms, Thorne wrote many pages of theory. The resulting rendering, in turn, inspired Thorne with new ideas about gravitational lenses and accretion disks, leading him and his colleagues to publish three new scientific papers.

Authors: Jimmy Wales, Larry Sanger

Random interesting fact from the Great Encyclopedia:

Who is a triton?

Tritons belong to the order of tailed amphibians. The class of animals known as amphibians includes, in addition to this order, frogs and toads. Most amphibians spend part of their life on earth, and part - in the water. Now there are three main orders of amphibians: tailless (for example, frogs and toads), which in adulthood have no tails, caudate (newts and salamanders), which have legless tails, which have tails, but no legs. Since newts have a long body, people often mistake them for lizards. But they are easy to distinguish from these reptiles: lizards are covered with scales, but newts do not. Lizards have claws, but newts do not.

Newts love the cold. Most of them live in temperate zones in North America and Europe, where winters are quite cold. Here they adapted to life in various ways. They can live in water or in underground caves, or even in rotten trees. On the ground they crawl or move slowly on their weak paws. In the water, newts swim, wagging their bodies and their long tails.

Newts are the smallest of the tailed amphibians and have thicker, drier skin. They live in Asia, North America, North Africa and Europe. One species of newt found in the United States, known as the eastern or red-spotted newt, goes through three stages in a lifetime. He is born in water. After two or three months, a small light green tadpole completes its metamorphosis and is ready for life on land. It takes on a coral red color, and two rows of red dots with a black rim appear on the back. Its size is from 4 to 7 centimeters.

After two or three years of life on land, the newt returns to the water to lay its eggs. His skin color changes again, becoming olive green. The skin itself becomes smooth, and new fins grow on the round tail. In this form, the newt spends its third life in the water.

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Turning ordinary material into a magnet 10.08.2020

Ferromagnetism is a phenomenon that occurs in a material when most of the electrons in its atoms rotate in the same direction. In non-magnetic materials, oppositely directed electron spins usually cancel each other out, destroying the magnetic field.

There are not many substances in the world that initially exhibit ferromagnetic properties. The most common of them are well known to us: these are iron, cobalt and nickel, as well as their alloys. That's why when creating electronic devices, the arsenal of engineers is so limited to these trinity.

However, scientists claim that they managed to induce magnetism in a material that was not magnetic before. This is pyrite, "fool's gold" - a mineral that inexperienced miners often mistake for gold nuggets. Using a technique known as electrolytic gating, the researchers endowed it with uncharacteristic properties.

First, they placed pyrite in contact with an electrolyte, after which they applied a weak - only 1 volt - discharge to the connection. This made it possible to move positively charged molecules in the area of contact between pyrite and electrolyte, thereby creating a measurable magnetic force. Interestingly, as soon as the voltage was turned off, the magnetism also disappeared. This feature can help in the design of future generation electronics.

“By applying voltage, we are actually injecting electrons into the material. It turns out that if a sufficiently high concentration of electrons is reached, then the material spontaneously acquires magnetic properties. Previously, all this was discussed only in theory, and we were damn surprised that our method worked. I’m sure that Since the experiment was successful with pyrite, then in the future we will be able to make other materials ferromagnetic," Chris Layton, lead author of the study, shared with the press.

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