10 most interesting facts about space that you may not have thought about, but now there is time to fix everything)
1. The moon is moving away from the Earth. Every year the Moon moves away from the Earth at a distance of almost 4 cm. There are many reasons for this, one of them is the slowing down of the Earth's rotation period by 2 milliseconds per day. Scientists do not know how the Moon was formed, they assume that this is a fragment of the Earth, "beaten off" by a large cosmic body that hit the Earth's surface many billions of years ago
2. The sun loses more than a billion kilograms of mass per second. This happens through the solar wind - a stream of particles moving from the surface of the Sun in different directions. The nature and causes of it have not yet been fully understood. By the way, one tiny particle of the solar wind (the size of a poppy seed) is enough to kill a person at a distance of up to 160 km.
3. When the scientist William Herschel discovered the planet Uranus in 1781, he got the right to name his discovery. He chose the name Georgium Sidus (Star of George), in honor of King George III. Here is what the scientist said about this: “In the past, the names of the planets were given by the names of famous gods - Mercury, Venus, Mars, etc. In modern philosophical times, I want to act differently. If descendants ask - when was the last planet of the solar system discovered? The answer will be very honorable - During the reign of King George III. " Uranus was also the first planet discovered with a telescope.
4. Sunspots are one of the reasons for the special sound of the Stradivarius violin. Antonio Stradivari is an eminent violin maker who lived in the 17th and 18th century. Scientists cannot figure out why his violins sound so special, but they found that the wood he used was very important to the sound of the violin. In the period 1500-1800, the Earth experienced the Little Ice Age associated with an increase in volcanic activity and a decrease in solar activity (Maunder minimum). As a result, the trees that were growing at that time are very hard (due to slow growth). This material is best suited for the production of violins.
5. If two pieces of metal come into contact in space, they will weld to each other if there are no oxides on their surface. This does not happen on Earth, because oxides are immediately formed on the surface in the atmosphere.
6. A car traveling at an average speed of 60 miles per hour would take approximately 48 million years to reach our nearest star (after the Sun) - Proxima Centauri.
7. Ganymede, the largest of the moons of the planet Jupiter, is larger than the planet Mercury. Ganymede's diameter is approximately 5, 269 kilometers.
8. A day on the planet Mercury is twice as long as a year. Mercury rotates on its axis very slowly, and one revolution around the Sun takes a little less than 88 days.
9. Neutron stars are the strongest magnets in the universe. The magnetic field of a neutron star is a million million times larger than the magnetic field of the Earth. If you fill a teaspoon with the substance that makes up neutron stars, then its weight will be approximately 110 million tons!
10. All people in zero gravity are about five centimeters taller. On Earth, gravity presses on the spine, but in space, nothing presses on the spine, and it expands to its full length.