Time is not the same for everyone: Einstein was right (again).

No one is immune to Albert Einstein’s theory of relativity, not even on Earth (and time is not the same)

When Einstein presented his special theory of relativity in 1905, our understanding of the universe changed forever. Before him, scientists described every “point” in the universe using only Quattro coordinates: The three spatial locations plus time, to indicate the moment when a particular event occurred. This all changed when the famous scientist realized that if you move relative to another observer, you age less than anything else that remains stationary. Whenever an observer moves in the universe relative to another, he will experience an experience Time dilation. His clock will run slower than a stationary observer. This great truth has been tested many times over the past century, including in the use of aircraft clocks.

Einstein’s gravity factor

When Einstein first presented his special theory of relativity, one element was missing: he didn’t take it into account gravitygravity. He had no idea that proximity to a large mass could change that too passing time. Due to the rotation and gravity of each particle that makes up the Earth, our planet is inflated at the equator and compressed at the poles. As a result, Earth’s gravity at the poles… Very light Stronger (about 0.4%) than at the equator.

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However, Einstein’s original goal was to use clocks to test the validity of his theory. Its effectiveness was not tested until the 1950s. Quartz watches. Or the mechanics were not reliable for this kind of experiment. That’s how it came about Atomic clock: The idea was to use frequency vibrant of corn to keep track of time.

Havell-Keating experiment

The Havel-Keating experiment made it possible to verify this with extreme precision The effect of the Earth’s gravitational field on the passage of time. It was 1971. Astronomers Richard Keating and Joseph Havel took three atomic clocks with them. They left one at the airport and took the other two on two trips around the world, one in the opposite direction of the other. The plane flying east was also flying in the same direction as the Earth’s rotation. Because the plane’s motion and the planet’s rotation were in the same direction, the speeds also increased: less time would have passed with her hands. The other was taken on a plane heading west at the time in return for The rotation of the earth.

On their return, the three clocks were no longer synchronized: the clock that had traveled east (in the same direction as the Earth’s rotation) was synchronized. backwards By 59 billionths of a second, compared to the remaining hour at the airport. He was the one who traveled west (and therefore in the opposite direction of the Earth’s rotation). Avanti 273 billionths of a second. Of course, these are imperceptible values, but they showed once again how right Einstein was.

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