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scottrwilson
Post  Post subject: Is the time dilation in the movie “Interstellar” plausible?  |  Posted: Wed Dec 21, 2016 11:46 am

Joined: Tue Dec 20, 2016 10:33 am
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This movie is supposed to have a solid scientific grounding.

In the movie, people land on “Miller’s Planet”, which is orbiting an immense black hole (Gargantuan), and experience time dilation, so that while 1 hour passes there, 7 years passes for observers (who I assume to be stationery relative the Gargantuan).

The movie explains this dilation as the result of the huge gravitational field from Gargantuan.

To me, that doesn’t seem possible. If such a planet were so close to a black hole as to experience such gravitational time dilation, but yet it is orbiting it, then it must surely be orbiting at a very great speed, in order not to fall into the black hole. But a ship could only land on it if it were to match its speed, which must require a huge amount of energy and time to do that, which surely isn’t possible.


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iNow
Post  Post subject: Re: Is the time dilation in the movie “Interstellar” plausib  |  Posted: Wed Dec 21, 2016 1:19 pm
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Joined: Thu Aug 04, 2011 11:40 pm
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Human intuition and common sense are very poor judges of the physics of interstellar space, black holes, and time dilation.

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iNow

"[Time] is one of those concepts that is profoundly resistant to a simple definition." ~C. Sagan


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scottrwilson
Post  Post subject: Re: Is the time dilation in the movie “Interstellar” plausib  |  Posted: Wed Dec 21, 2016 1:29 pm

Joined: Tue Dec 20, 2016 10:33 am
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iNow wrote:
Human intuition and common sense are very poor judges of the physics of interstellar space, black holes, and time dilation.


I would mostly agree, but of course human intuition is, dare I say, relative. I could be wrong, but I think Einstein started with an intuitive idea of special relativity, that is, intuitive for him. That came before the maths.


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