The Moon

The moon is one of the largest natural satellite in the solar system, with a quarter of the diameter of the Earth.

As small as it is, gravity is also smaller than Earth. The moon's gravity is only one-sixth of the Earth, so a person weighing 60 kilograms on Earth is only 10 kilograms when he goes to the moon. The acceleration due to gravity is also small, increasing the speed by 9.8 meters per second when an object falls to the ground on Earth, but by about 1.6 meters per second on the moon. Because of this, even the same object falls six times slower than the Earth. Therefore, if you jump in place from the moon, you can jump higher and fall more slowly. If you look at the video taken from the moon by the astronauts of the Apollo program, you can see the balloon jumping up and going down slowly like a little bit.

There is no atmosphere on the moon. Because gravity is small, the moon cannot hold the gaseous molecule that forms the atmosphere. So there is no sound or wind on the moon. Sound needs a "Medium" with molecules that can transmit energy, such as air, water, and metal. However, no atmosphere on the surface of the moon acts as a medium, so no sound can be heard. There is no air to move, so there is no wind.

As such, the moon's environment is very harsh for life So why do people continue to study and explore the moon? The most fundamental reason is curiosity. The moon was a grateful lighthouse that lit up the night path for mankind for many years and a frightening mystery. But the moon exploration is too huge to be driven only out of curiosity. The reason why advanced countries invest huge budgets, the latest technologies and manpower in lunar exploration is because, above all, exploration of the moon is a matter of pride in science and technology. To get to the moon, you must have good performance Launch Vehicles, the latest technology must be applied to help you live safely in space, and the ability to calculate accurately moving long distances.

In a word, lunar exploration is a "Comprehensive art" that combines all the science and technology of a country. Therefore, success in exploring the moon is a testament to how high the country's science and technology are.

I am working on building the Lunar Space Elevator Infrastructure.
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I'm not an expert, but I don't think this is an absurd plan. All the little things that go into the artwork combine to create a masterpiece. Pay attention to our plan and join in, it will be all material.

Byungik Jung