Although near-absolute lightspeed was not taken into account during their design there are a number of possible interstellar spacecraft designs mentioned on an episode of Carl Sagan's Cosmos. They only really focus on methods of propulsion, but they are still interesting to consider, from a...
I was thinking Doppler effect when someone told me that a clock ticks faster than your own as it approaches, normalises as it passes, and then runs slow as it moves away. Is this true even for inertial motion?
I also added this into my previous post hoping that I'd catch you before you...
Yeah, I know, it's very much appreciated! I guess we have different interpretations of the word. For me, it was just a 'you got me!' remark. :-p I enjoyed your post very much.
Right, okay. So does clock drift only occur during acceleration? Is there ever a scenario where you could observe a...
Ouch, you really skewered me there! By observed surroundings I should have stated 'the universe through the window', not the interior of the craft.
Is that what you meant? Or am I still wrong?
I also disagree with the 'meaningless' nature of perceived time from an outside perspective...
1. I said 'if you were put into it as an observer' as an abstract thought which - I thought - clarified that I was talking loosely.
2. I know - I explained that in the very same sentence! The OP stated that English was not their mother-tongue, so I was trying not to convolute the explanation...
I think this has already been handled brilliantly but I'll try to offer my own more semantically-orientated explanation.
It's hard to tell how a beam of light experiences the flow of time if you were put into it as an observer, but it is known that at the speed of light c time is effectively...
Oh, that is interesting. I am reading through his paper but I've only just finished the Special Relativity sections. Perhaps I should've read it through before posting this topic as it may have provided the answer, but impatience got the better of me - it was driving me insane!
Ah, okay. So...
Of course! How did I miss it? I was practically answering my own question but didn't make the connection.
Thanks for the speedy resolution, I expected no less :approve:
Hi all
I am new to relativity, and through the books that I have chosen to learn the subject (that cater to my level) I seemed to be following with ease. However, I was posed with a simple question that I could not answer, and whatever it is, the thing that I am overlooking still eludes me...