Which planets in the solar system are the largest? Detailed answer

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Which planets in the solar system are the largest? Detailed answer

Big encyclopedia for children and adults

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Which planets in the solar system are the largest?

Jupiter and Saturn are huge cold balls of gas. They are so large that all the other planets can fit on their surface. Jupiter's diameter is 142800 km, which is 11,2 times larger than Earth's.

Author: Mendeleev V.A.

Random interesting fact from the Great Encyclopedia:

When did surfing originate?

Surfing is a sport where you swim on the ocean waves while standing on a long and narrow board. This sport is enjoyed along the coasts of the world. It has become very popular, but we still think of it as something new. In fact, it is a very ancient sport. It originated in the Pacific Islands hundreds of years ago.

When Captain James Cook discovered Hawaii in 1788, surfing was very popular among the Hawaiians. Hawaiians held surfing competitions, the winners received prizes and were cheered by everyone. The islanders used boards 4-5 meters long and weighing 68 kg.

In 1957 there was a big event in surfing that made it popular. We started using lighter boards. The boards, about 3 meters long and weighing about 10 kg, made surfing possible for women and children. New boards were usually made of foam, covered with fiberglass and rubber.

The board is the only equipment required for this sport. Being on the waves, the athlete stands on the board and controls it to the left and right. First, the athlete must sail away from the shore with the board - beyond the surf, beyond the line where the waves begin to break. Kneeling or lying prone on the board, he waits for the dead swell. When the wave he wants to climb begins to rise above him, he begins to row quickly towards the shore. The wave rises under him, and the board rises to its crest. Having "caught" the wave, the athlete stands up, one foot in front, and controls the board, trying to stay on the wave.

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Random news from the Archive

Sound waves are the carrier of mass 17.03.2019

Scientists from Columbia and Pennsylvania Universities have been researching issues related to the behavior and dispersion of sound waves propagating in a superfluid liquid, liquid helium. The first of their experiments showed that sound has a non-zero mass value and, due to this, its movement falls under the influence of the global gravitational field, the force of gravity in this case.

The level of effects discovered by scientists is so small that its manifestations cannot be felt on Earth in any way, they can manifest themselves in very extreme conditions, when the generated stellar "roar" moves in the environment of extremely dense objects, such as neutron stars. And then the effects of the interaction of powerful sound waves with the strongest gravity of space objects can significantly affect the processes occurring in this region of space.

While scientists have confirmed the possibility of sound waves having mass under extreme conditions, they are now preparing a series of experiments that should confirm that phonons, sound particles, have mass under normal conditions. All this contradicts the existing theory, according to which phonons have no mass and gravitational fields do not affect their motion in any way.

The key to solving the problem described above will be the study of phonon propagation in a medium with given parameters. In an ideal medium, the motion of phonons and the transfer of momentum of motion can be described as one of the forms of linear dispersion, which, according to theoretical calculations, gives the phonons a non-zero mass. But in the reality that scientists have to face, everything is much worse, real particles and liquids are far from ideal, they obey a host of other physical laws, interact and have a mutual influence on other nearby objects.

The mass that scientists are going to find in the phonon is very small. It is in the same range as the amount of energy of a photon of light divided by the square of the speed of light, in other words, this mass is very, very small. Unfortunately, far from all the theoretical calculations and confirmations put forward by scientists have been tested in practice, for this it will be necessary to measure gravitational changes at the level of individual atoms cooled to a temperature close to absolute zero. This will become possible in the near future, only recently have scientists been able to experiment with Bose-Einstein condensates in space.

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