Understanding something that you read or came across somewhere, is good. Here, what I mean by 'Really Understanding' is that, it'll get into your mind in the best way possible that every possible detail will be covered and when your mind raises questions, you can come up with answers that might leave you surprised.
When it comes to 'Really Understanding', the person who comes to my mind is Stephen Hawking.
By reading his Theories on Time Travel, I should say, I went sleepless that night. All I could think of was the concept of Time travel, every possible question to be answered, answered in a way that one would not rethink again. It really made me wonder how easy it was for that gifted mind, to think and also explain it in such simple words. For people who don't know about it , here it goes.
According to him, and as we all know, it takes nearly 8 minutes for the light from our sun to reach earth. In a similar way the pictures of stars and galaxies that we see now are actually the light which has reached earth now but were let out several years ago. So he thinks that, we're able to look at the past of a star or a galaxy. He adds, in case we have a ship that can travel at light speed or probably more, when we set to reach a target star which is far away; by the time we reach there we'd be seeing the present state of the star. If we can then somehow interpret the data faster than the light rays to the present day on earth, we actually might have achieved peeking through the future of the star (the light from the future would take several years to reach earth and also by the time it reaches here, several more years would have passed already). He thinks, this might be a way to travel through time.
And I should also say, I was going through his book 'A brief history of time travel' in which he has explained the origin of universe- the instance 'time' started and the 'big bang theory'. He has summarized the various controversy of the theories put forth for the explaining the origin of the universe and also the hypothetical way to go along each and every theory that was put forth.
His understanding about Black holes is a whole other thing that we'll discuss later.
When it comes to 'Really Understanding', the person who comes to my mind is Stephen Hawking.
By reading his Theories on Time Travel, I should say, I went sleepless that night. All I could think of was the concept of Time travel, every possible question to be answered, answered in a way that one would not rethink again. It really made me wonder how easy it was for that gifted mind, to think and also explain it in such simple words. For people who don't know about it , here it goes.
According to him, and as we all know, it takes nearly 8 minutes for the light from our sun to reach earth. In a similar way the pictures of stars and galaxies that we see now are actually the light which has reached earth now but were let out several years ago. So he thinks that, we're able to look at the past of a star or a galaxy. He adds, in case we have a ship that can travel at light speed or probably more, when we set to reach a target star which is far away; by the time we reach there we'd be seeing the present state of the star. If we can then somehow interpret the data faster than the light rays to the present day on earth, we actually might have achieved peeking through the future of the star (the light from the future would take several years to reach earth and also by the time it reaches here, several more years would have passed already). He thinks, this might be a way to travel through time.
And I should also say, I was going through his book 'A brief history of time travel' in which he has explained the origin of universe- the instance 'time' started and the 'big bang theory'. He has summarized the various controversy of the theories put forth for the explaining the origin of the universe and also the hypothetical way to go along each and every theory that was put forth.
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