Is Time Travel Possible?

Is Travelling In Time Possible?

Clocks on airplanes and satellites travel at a different speed than clocks on the ground here on Earth, despite the fact that humans are unable to enter a time machine and travel back in time. We are all time travelers in one way or another! Consequently, we are all traveling through time at approximately the same speed: one second per minute. NASA’s space telescopes also give us the ability to travel back in time, which is extremely useful. Using telescopes, we can see stars and galaxies that are thousands of light years away, which is incredible. 

In order for light from distant galaxies to reach us on the Earth’s surface, it must travel a long distance. When we look up into the sky with a telescope, we are therefore seeing what those stars and galaxies looked like a very long time ago, which is fascinating.

Is It Possible To Travel Through Time?

Instead of traveling back in time, when we hear the phrase “time travel,” we typically think of traveling at a rate faster than one second per second, rather than traveling forward in time. Even though time travel sounds like something that would only be seen in science fiction movies or books, it is a reality that exists today. Is it possible that it’s true in this case? Yes, according to scientific evidence!

Einstein, a well-known scientist from more than a century ago, proposed a theory about the way time works, which was later proven correct. It was referred to as relativity by him. According to this theory, the concepts of time and space are inextricably bound together. Einstein also stated that the speed of light is the limit of our universe, meaning that nothing can travel faster than the speed of light in our universe (186,000 miles per second).

What Proof Do We Have For Time Travel?

As a result of this theory, the faster you travel, the slower you experience time to be passing by. To demonstrate that this is correct, scientists have carried out a number of experiments. For example, in one study, two clocks were set to the exact same time in order to conduct an experiment, and the results were compared. One clock remained on the surface of the planet, while the other was transported through space in an airplane (see illustration)

Researchers compared the two timepieces after the plane had successfully completed its circumnavigation of the globe. Even though the plane was traveling at high speeds, the airplane’s clock was running slightly behind the time on the ground. The result was that in terms of time, the airplane’s clock ticked slightly slower.

It Is Possible To Use Time Travel In Our Everyday Llives?

The use of a time machine will not allow us to travel hundreds of years into the past or into the future in a single trip. The only places where this type of time travel occurs are in novels and movies till now. The mathematics of time travel, on the other hand, has an impact on the things that we use on a daily basis.

GPS satellites, for example, are used to assist us in determining the best route to take when traveling to new locations. A high-accuracy version of the Global Positioning System (GPS) is also used by NASA scientists to keep track of the location of satellites in space. You may not have realized it, but your GPS system relies on time-travel calculations to help you navigate your way around the city.

The GPS satellites orbit the Earth at a speed of approximately 8,700 miles, which is approximately 14,000 kilometers per hour. A small fraction of a second is added to the speed of the GPS satellites’ clocks as result of this delay (similar to the airplane example above). However, the satellites are orbiting the Earth at a distance of approximately 12,550 miles (20,200 kilometers) above the surface of the planet. As a result, GPS satellite clocks tick more quickly by a fraction of a second, causing them to tick more quickly overall.

Space And Time

Einstein’s theory also asserts that gravitational curvature affects both space and time, causing the passage of time to slow down. At higher altitudes, where satellites orbit, the gravitational pull of the Earth is much weaker than at lower altitudes. It is as a result of these factors that the clocks on GPS satellites run at a faster rate than the clocks on the ground on Earth. The clocks on GPS satellites experience time at a rate that is slightly faster than one second per second when all of these factors are taken into consideration. Science, on the other hand, can correct for these differences in time by employing mathematical techniques.

Space Time

Why Is It Important to Correct The Differences

If scientists do not correct the GPS clocks as soon as possible, there will be serious consequences. If GPS satellites were able to accurately calculate their or your location, it is highly unlikely that they would do so. Adding up all of the errors would add up to a few miles per day, which is a significant amount of travel. GPS navigation systems may make the mistake of believing your home is hundreds of miles away from where it actually is.

As a final point, it is critical to emphasize that There are instances in which time travel is possible, and this is true in some cases. In contrast to what you might have seen in the movies, it is not quite the same. While it is possible to perceive time passing at a rate other than one second per second, or even faster, under certain circumstances, it is not recommended. In addition, there are some very important reasons why we need to understand this real-world form of time travel as well as how it functions.

Image Credentials: NASA/JPL-Caltech, Pinterest

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