What would happen on Earth if our planet did not have a moon? Detailed answer

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What would happen on Earth if our planet did not have a moon? Detailed answer

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What would happen on Earth if our planet did not have a moon?

The gravitational influence of the Moon has a huge impact on many processes occurring on Earth.

The French astronomer J. Lascar tried to estimate, on the basis of mathematical modeling, what would happen on Earth if our planet did not have the Moon.

The main conclusion made by the scientist is that the attraction of the Moon stabilizes the climate of our planet. Only by its proximity to the Earth, the Moon limits the oscillations of the axis of the globe relative to the plane of the ecliptic. The tilt of the axis, as you know, determines the change of seasons, that is, the amount of solar energy arriving at certain latitudes in the Northern and Southern Hemispheres.

J. Lascar's calculations showed that, if there were no Moon, the axis of the globe could change its inclination with respect to the ecliptic plane in a very significant range - from 0 to 85 degrees (at present, the axis is tilted by 23,5 degrees). With an inclination angle of 85 degrees, the picture would be as follows: the Sun would stand almost at its zenith over one of the earth's poles for a long time, and the opposite hemisphere would remain immersed in darkness for just as long. The temperature difference in the hemispheres would cause monstrous hurricanes and rains, not inferior in strength to the biblical flood.

Even such a dramatic question is legitimate: would life have originated on our planet if it had not had a satellite - the Moon?

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

What does His Serene Highness Prince Potemkin have to do with the Potemkin Stairs in Odessa?

Many mistakenly believe that the Potemkin Stairs in Odessa is named after His Grace Prince Grigory Potemkin. In fact, this building was built after his death on the initiative of Count Mikhail Vorontsov and for a long time had no official name at all. After the release of the film "Battleship Potemkin" by Sergei Eisenstein, the inhabitants of Odessa began to call the Potemkin staircase, and only in the 1950s this name was fixed in the documents.

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Global transport system with airships 02.09.2019

Rising to a height of 10 to 20 kilometers, airships will be able to be transported by the power of the polar jet stream - a narrow and powerful stream that blows steadily in the upper troposphere.

The era of airships ended in 1937, when the passenger Hindenburg caught fire and died during landing. This disaster was not the largest, but it turned out to be the last straw: a dangerous mode of transport was abandoned, despite all its efficiency. Perhaps now is the time to return to zeppelins - already at a new level and with new technologies. It is not for nothing that many companies in the world are already developing their transportation systems using such lighter-than-air vehicles.

Some of the prospects for cargo transportation by airships were appreciated by Julian Hunt and his colleagues. Their concept relies on truly large size machines; the authors write about airships ten times larger than the Hindenburg, which was 245 meters long. In theory, this will increase the carrying capacity by three orders of magnitude, even in comparison with the Hindenburg, which could take on board up to 100 tons of payload.

Rising to a height of 10 to 20 kilometers, such giants can be carried by the power of the polar jet stream - a narrow and powerful stream that blows steadily in the upper troposphere. In the temperate latitudes of the Northern Hemisphere, it is directed from west to east and reaches an average speed of 165 km/h. According to the calculations of Hunt and his colleagues, "riding" this stream, huge airships will be able to make a complete trip around the Earth in 16 days, carrying tens of thousands of tons of cargo and practically not consuming energy. A similar route in the Southern Hemisphere will take 14 days.

Thanks to modern materials and technology, huge cargo airships can become much safer than the Hindenburg, whose shell was made from animal intestines - today it can be made from carbon fiber. On the other hand, the "buoyancy" necessary for traveling with the wind can still be provided only by light gas. The only economically available option for it today remains the same hydrogen, the flammability of which was so clearly demonstrated by the Hindenburg. And if an accident does happen, it’s even scary to imagine what the explosion of a thousand-ton zeppelin with a kilometer-long hydrogen cylinder will turn into.

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