If 7 Billion People Jump together, Will Earth Drift From Its Axis?

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There are many completely impractical but at the same time extremely entertaining questions. The question in the title of this article is just one of them. Let us get it right.

Since all people are distributed more or less evenly across the Earth, nothing will happen in general, since the blows from landing people on different parts of the Earth mutually cancel each other out.

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Yes, of course, if we consider the Earth as a ball, then it turns out that for almost all land areas, on the other side of the Earth, there is an ocean. Only Portugal crosses slightly with New Zealand. Also, in the northern hemisphere, there are many more people than in the southern hemisphere, but all the same, since the force will be spread over a large surface, a significant part of it will be mutually compensated and the resulting force will be negligible.

Let us imagine that in some magical way, all the people gathered in one place. For simplicity, we assume that all people jump to the same height, 30 centimeters.

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There are approximately 7 billion people on Earth. The total mass of all people can be estimated at about 400 billion kilograms. The mass of the Earth is 5.97 • 10²⁴ kilograms. This is approximately 12,817,518,248,175 times the mass of all people on Earth.

A drop in the mass of 400 billion kilograms will cause a change in the speed of the Earth’s orbital motion by about 2.6 • 10⁻¹³ m/s. In other words, this is a  0.25 nanometers shift in the orbit of the earth by or about half the diameter of a hydrogen atom.

However, the Earth very quickly “bounces back” due to the gravitational connection with the Sun.

If 7 Billion People Jump together
What would happen if 7 Billion People Jump At one time?

If we assume that all people will gather together in a relatively small territory, for example, on the territory of a city such as New York, and the entire jumping surface will be asphalted, then the joint landing of all people will cause a tremendous noise, an acoustic shock comparable in volume to an atomic bomb explosion.

It will also cause a very strong earthquake in this area. It is difficult to predict the exact strength of the earthquake, but most likely, it will be one of the strongest earthquakes in history.

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Vicky Verma started his career as a mechanical engineer. But he always wondered to do something, which could bring some change in other’s life, but was blanked. In 2016, He moved towards the Internet world, as it attracts him powerfully, so He decided to create something which could help him to share factual and interesting thing to others. Now, He is often using social media to interact with his readers and always reply them in each of their queries and you can mail him personally from the contact page.
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