اگر آپ روشنی کی رفتار سے سفر کریں تو کیا تبدیلی آئے گی؟

In today’s modern era, we have developed some of the fastest engines, such as bullet trains, high-speed airplanes, ultra-fast supersonic jets, and now we are also trying to create hyperloops and vactrains which will be even faster than the fastest airplanes. But still, there is one thing that surpasses everyone in terms of speed, and that is light.

Some of you may not have thought about it, but many people do think about how it would feel to experience the universe by traveling at the speed of light, surpassing the limits of time and space.

In imagination, it may seem impossible for a human to travel at the speed of light, and even if they could, they would not survive. However, if we consider Einstein’s theory of relativity, it is not entirely impossible to imagine oneself traveling at the speed of light.

At the beginning of the 20th century, Albert Einstein presented the theory of relativity, which proved that mass and energy can transform into each other. Furthermore, the theory of relativity also tells us that if an object travels at the speed of light, its mass will increase rapidly. It is important to note that the speed of light is 299,792 kilometers per second, and when an object moves at this speed, its mass becomes infinite, requiring infinite energy, which is currently impossible for any large-scale object.

But let’s assume that you are traveling to Mars, which is 450 million kilometers away from Earth, and without stopping, at 90% of the speed of light. It would take you approximately 16 minutes and 40 seconds to reach there and return to Earth. However, the interesting thing is that these 16 minutes and 40 seconds would be experienced by people observing your journey from Earth. For you, the duration of the round trip to Mars would be only 8 minutes and 20 seconds. The reason for this is that during the journey at the speed of light, the concept of time changes, meaning the faster you travel, the slower time becomes for you. Therefore, it is correct to say that in such situations, the process of aging would also slow down for you.