A new study shows that objects age at different rates when they are only a millimeter apart.

A new study shows that objects age at different rates when they are only a millimeter apart.

A team of scientists have confirmed that Albert Einstein’s general theory of relativity works even at the smallest distances, a discovery they claim could be “crucial in terms of measuring how the Earth is changing.”

Einstein’s work famously showed that time is relative. In 1907, his general theory of relativity showed that clocks run faster at high altitudes because they experience a weaker gravitational force than clocks on the Earth’s surface.

This means that an event that happens at the same time for one person can happen at a different time for another.

Using the most accurate clock in the world, scientists at JILA — a collaboration between the National Institute of Standards and Technology and the University of Colorado at Boulder — have found that this theory is true even within a small distance of just a millimeter from each other.

In a study published in the journal Nature on Wednesday, JILA researchers said that when recording time on watches spaced about a pencil-tip apart, they found that the devices showed slightly different times due to the influence of Earth’s gravity.

“In a sense, we are trying to say that time and space are interconnected. As Einstein’s theory of relativity tells us, time is space, space is time, and time is relative. There is no absolute concept of time,” said Vice Jun Ye, JILA physicist and co-author of the study.

The researchers say the results could help make time measurements more accurate and could be used for a variety of applications, including deep space flight, volcanic prediction and sea level rise.

“The whole earth is a living body; it moves very actively,” said E.

“When you talk about global warming and Earth change, we need better tools to be able to track what’s going on. You can use clocks to measure changes on Earth because time and space are inextricably linked.”

Using the most accurate clock in the world (pictured), a team of scientists has confirmed that Albert Einstein's general theory of relativity works even at the smallest distances.

Using the most accurate clock in the world (pictured), a team of scientists has confirmed that Albert Einstein’s general theory of relativity works even at the smallest distances.

JILA researchers said that when recording time on watches placed about the tip of a pencil, they found that the devices showed slightly different times due to the influence of Earth's gravity.  The results also show that altitude affects time or age, meaning that objects at higher altitudes age faster.

JILA researchers said that when recording time on watches placed about the tip of a pencil, they found that the devices showed slightly different times due to the influence of Earth’s gravity. The results also show that altitude affects time or age, meaning that objects at higher altitudes age faster.

The theory also suggests that height affects time or age.

This means that your head ages faster than your feet, that people living on the top floor of an apartment building age faster than people on the ground floor, and that time passes more slowly for people living at sea level than for those on the ground floor. mountains

“We often like to joke: “We live a healthy life for a hundred years, and during this period your head ages a little faster than your legs, by about half a microsecond,” he said.

“This is a minute on a biological scale – who cares about half a microsecond in a hundred years of my life? But it has a lot of value in terms of measuring how the Earth is changing, and measuring how we can eventually fly manned or unmanned vehicles to land on Mars or other distant planets. All this is based on the exact time of receipt of information.

Jun Ye, (pictured) a JILA physicist who co-authored the study, says the results could help make time measurements more accurate and could be used for a variety of applications, including deep space flight, volcanic prediction, and sea level measurements.  growth

Jun Ye, (pictured) a JILA physicist who co-authored the study, says the results could help make time measurements more accurate and could be used for a variety of applications, including deep space flight, volcanic prediction, and sea level measurements. growth

He argues that as atomic clocks become more accurate as research advances, scientists will actually be able to see waves of atoms moving along the curvature of space-time, which affects how bodies move through space.

“This is very important if we get to this point,” said E. “This is an area of ​​physics that we have never explored.”

Ye and his colleagues say the experiment could pave the way for clocks that are 50 times more accurate than clocks available today.

They argue that if the clock could be improved by a factor of 20, it could “shine light on the fundamental mysteries of our universe.”

JILA researchers have spent several years developing increasingly accurate atomic clocks in an effort to push the boundaries of timekeeping and general relativity.

The pendulum in the atomic clock is played by the changing frequency of the electrons in the atoms, which “arrange themselves in lattices designed to control their chaotic energy and motion.”

They claim that this method makes atomic clocks “by far the most accurate timepieces ever invented.” The devices used in GPS satellites and other ultra-precise systems are said to lose just one second in 15 billion years.

Ye and his colleagues say the experiment could pave the way for clocks that are 50 times more accurate than clocks available today.  They argue that if the clock could be improved by a factor of 20, it could

Ye and his colleagues say the experiment could pave the way for clocks that are 50 times more accurate than clocks available today. They argue that if the clock could be improved by a factor of 20, it could “shine light on the fundamental mysteries of our universe.”

In 2010, JILA scientists used this watch to measure time dilation at two points located 33 centimeters apart, or about 1 foot apart.  The researchers found that clocks placed at a higher altitude ran slightly faster than clocks placed lower, as predicted.

In 2010, JILA scientists used this watch to measure time dilation at two points located 33 centimeters apart, or about 1 foot apart. The researchers found that clocks placed at a higher altitude ran slightly faster than clocks placed lower, as predicted.

In 2010, JILA scientists used this watch to measure time dilation at two points located 33 centimeters apart, or about 1 foot apart.

The researchers found that clocks placed at a higher altitude ran slightly faster than clocks placed lower, as expected.

E and his colleagues also managed to make a sample of 100,000 extremely cold strontium atoms move in perfect unison for 37 seconds, setting a new record for “quantum coherence,” a state in which the behavior of atoms can be predicted.

“The first day we could see this long coherence time, we couldn’t believe it,” E recalls. “Quantum coherence sounds very microscopic. The atom shows you how the electrons move around the nucleus and so on. But it’s incredible to think about 37 seconds, almost a minute – it’s a very macroscopic time scale, a “human being” time scale.

He continued, “When I was talking to my students, I said, ‘This is the first time in my life that I can imagine my atom ticking back and forth in a coherent manner while I’m drinking a cup of coffee.’

“In the end, in fact, this is the essence of the quantum revolution that we are talking about now. It’s amazing to bring quantum phenomena, which are something very microscopic, into a world view of the macroscopic.”

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