As a child, you must have thought sometime or the other that what will happen if you move at the speed of light or more? Seeing fictional characters like the fast-flying ‘Superman’ and the fast-moving ‘Flash’, you too must have wished that you too could walk or fly at the speed of light and reach your desired destination! Even though after growing up, these thoughts have gone out of your mind, but even today you would have a desire to know the answer to these thoughts that arise in your mind. So is it possible for humans to move at the speed of light or more?
The strange idea of being able to walk at the speed of light amazes people, but scientists have done research on this for years. In this direction, the information obtained from Albert Einstein’s Theory of Relativity is most appropriate, through which we come to know whether a human being can walk at the speed of light or not. If you want to tell in a simple sentence, then know that it is impossible and it is just an imaginary idea that man can walk at the speed of light.
Walking at the speed of light can reduce the age of a person. (Representational photo: Canva)
Is it possible to travel at the speed of light?
The reason for this is that everything we know has mass inside it, which is called mass. Any such thing in the world, which has mass, needs energy to move. According to Einstein’s theory, the speed of light acts as a universal speed limit on anything with mass. His theory states that nothing with mass can travel up to or faster than the speed of light. The reason for this is that the mass of anything should be infinite to take it at that speed, and to accelerate the infinite mass so fast, infinite energy is required, which is impossible.
What would happen if we traveled at 90% of the speed of light?
Now, just for the sake of thinking, if we assume that humans reach near the speed of light, that is, if they achieve 90 percent of the speed of 3 lakh kilometers per second, then what will happen? In such a situation, there will be many kinds of effects on the human being. The most important effect is Time Dilation. According to the report of the Science ABC website, if you go to Mars at this speed and come back to Earth, then you will have to travel 45 crore kilometers, which will take about 16 minutes and 40 seconds to complete. But this time will be known to those people on earth who are watching your journey. Time will reduce for you and by the time you come back, you will know only 8 minutes 20 seconds. This is called time dilation. That is, the faster you move in space, the less time will decrease. To put it simply, the faster you travel, the slower you will age.
What would happen if we traveled at 99.99% of the speed of light?
Now if it is thought that you move almost equal to the speed of light i.e. 99.99 percent, then what will happen? According to the Science ABC website, if you walk at this speed to Alpha Centauri (a group of three stars) outside our solar system, which is 4.35 light-years away, it will take you 8 years and 8 months to return. . But the surprising thing is that for the people living on earth, 8 years and 8 months will pass, whereas for you only 1.5 months will pass. This means that when you return to Earth, people of your age would have been 8 years older, whereas you would have aged only 1.5 months.
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FIRST PUBLISHED : April 06, 2023, 10:42 IST