People first visited the moon on July 20, 1969. When Buzz Aldrin and Neil Armstrong stepped onto the surface of the moon that day, they not only entered world history – the astronauts lost weight. How is this possible?
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What is gravity?
Before weight can be understood, it is first necessary to understand the essence of gravity and mass. Gravity is a natural force that attracts objects to each other.
Gravity on Earth is a constant force pulling a person to the surface and not allowing him to fly into space like a balloon. But weight, in turn, is a measure of the gravitational attraction of the Earth on a person.
Mass is the amount of “material” in a person. Unlike weight, the mass is the same on Earth, on Mars, and on Earth’s satellite.
Even sitting in the living room, swimming in the ocean, or being somewhere far away in outer space, the mass will remain unchanged.
The one who weighs 120 kg has a greater mass than the one who weighs 100 kilograms. The greater the mass of a person, the greater the force of gravity.
How does the gravitational pull of the planet affect human weight?
Small celestial bodies have a weaker gravitational pull than Earth.
Large planets such as Jupiter and Saturn attract more, which means that a person will weigh more if he visits such planets.
Since the moon is smaller than the earth, it has a weaker gravitational pull. In fact, the Moon has only 1/6 of the gravity of the Earth.
This means that a person will weigh six times less on an earth satellite than on Earth!
When the astronauts landed on the moon in 1969, they were dressed in space suits and carried heavy equipment bags.
Since gravity is much weaker on the moon and is only 1/6 of Earth’s magnitude, astronauts could easily move along the surface of an earth satellite.