According to Einstein, gravity can distort space and time. To verify this claim, just put one atomic clock on a mountain and another on the beach. In the end you will see that each clock shows a different time. But how is that possible?
According to the general theory of relativity, time moves slowly the closer we get to the earth. This shift is due to gravity. This effect, known as “time dilation”, was first observed on a cosmic scale – when a star passes near a black hole – before it was simulated on Earth.
Absolute time, an illusion
The experiment was carried out about 11 years ago. To do this, the researchers used two very precise atomic clocks, one of which was placed 33 centimeters higher than the other. Again, the time the clock showed, closer to Earth, moved slowly. Although the differences were minimal, this simulation still confirmed the view that “absolute time” is an illusion. Each of us has our own time perception. A reality that Carlo Rovelli mentions in his book “The Order of Time”.
The relationship between time and thermodynamics
According to Rovelli, when we observe reality on the smallest scale, time disappears based, among other things, on equations of quantum gravity. “When I observe the microscopic state of things (…) then the difference between past and future disappears (…) In the elementary grammar of things there is no difference between” cause “and” effect “,” he writes from our colleagues BigThink.
The Italian theoretical physicist recalls in his work that the key aspects of time are described by the second law of thermodynamics. This assumes that the hot always goes in the direction of the cold and not the other way around. It is quite possible that such a phenomenon determines our perception of time and prevents us from perceiving the future.
Time is expanded not only by the mass of the objects, but also by their speed. Photo credit: Shutterstock / Mikhail Leonov
A subjective idea
“Thermodynamics traces the direction of time back to what has been termed the ‘low entropy of the past’, a still mysterious phenomenon that is debated,” Rovelli wrote in the columns of the Financial Times. The weather certainly depends on gravity, but you don’t have to change your location to feel the elasticity. In a moment of fear, our brain releases large amounts of adrenaline, which speeds up our internal clock. As a result, the outside world is perceived as slow moving.
Our level of concentration can also lead to distortions in our perception of time. “If you get distracted over time, you are more likely to lose track of time, making you feel like it is passing faster than usual,” said Aaron Sackett, associate professor of marketing at the University of St. Thomas (United) States), in Gizmodo.