Showing posts with the label Technology

Time travel! Is light the way to go back in time?

Time travel! Is light the way to go back in time?

Friends, in this article today we will discuss what light is the way to go back in time. Will it be possible? Suppose if we go back a few years with the help of light, what will we do? Let us discuss such.
When we talk of light, the speed of light is used in astronomy to estimate the distances of stars, mainly stars and galaxies.
We take an example to understand this. Suppose you know someone who lives 200 meters from your house, but you can also say that he lives within 5 minutes of your house. Therefore you can use length measurement or time measurement to calculate distance. Astronomers do the same thing with light to measure the distance of stars.
Thus, our nearest star, Proxima Centauri is located at a distance of about 41 trillion km from our Sun.
But no one can imagine such a distance because it is very large. Knowing that light travels at 300,000 km per second, it takes 137 million seconds to reach that star. Converted into hou…