Can anyone explain Interstellar Questions?

[GTOM]

"Since 1 hour on Miller's planet is 7 years to a distant observer, those waves might as well have been standing still from afar."

In the vicinity of a black hole, very strong tidal forces can be expected, Jupiter isn't a black hole, but it generates very strong tidal effects on Io.

2. https://www.physicsforums.com/threads/survival-on-mars.765443/
My topic about Mars colonization, maybe we can continue there the planetary thing.
My last answer here (i think not entirely OFF, as it was also a question in the movie, whether we should search for a quite Earth like planet, or build space stations) : spin up the colony to mimic gravity also requires lots of propellant, aerobreak can help landing on Mars, once you landed a proper colony seed, you can access lots of useful materials even on foot (thanks to gravity, thick layer of dirt is enough for radiation protection for example), and have a whole planet to expand the colony, a railway enough to transport between them.
I admit the return to Earth part is harder, but in the movie, they didnt want to return.

 

[Pete Cortez]

"Since 1 hour on Miller's planet is 7 years to a distant observer, those waves might as well have been standing still from afar."

In the vicinity of a black hole, very strong tidal forces can be expected, Jupiter isn't a black hole, but it generates very strong tidal effects on Io.

Tidal force depends on the gradient of the field. Kip Thorne worked out Gargantua's characteristics based on the plot's necessities, one of which was that Miller's planet has to be exceptionally close without being torn apart by tidal forces. Hence, a black hole at least 100 million times more massive than the sun and circumference comparable to the that of Earth's orbit around the sun.

2. https://www.physicsforums.com/threads/survival-on-mars.765443/
My topic about Mars colonization, maybe we can continue there the planetary thing.

I'll check it out.

My last answer here (i think not entirely OFF, as it was also a question in the movie, whether we should search for a quite Earth like planet, or build space stations) : spin up the colony to mimic gravity also requires lots of propellant

Solar system's full of comets. Saturn especially has a lot of ice-water in her rings.

aerobreak can help landing on Mars

For certain interplanetary trajectories. Not terribly helpful for Mars orbital paths. And also you still have the problem of getting people and stuff off Mars. These are problems you don't have with the enormous amount of weakly gravitating rubble falling all over the place in our solar system.

once you landed a proper colony seed, you can access lots of useful materials even on foot (thanks to gravity, thick layer of dirt is enough for radiation protection for example), and have a whole planet to expand the colony, a railway enough to transport between them.

You have lots of materials in asteroids, on lightly gravitating moons and planetoids, in comets, and in Saturn's rings. And you have the whole of empty space in which to expand.

I admit the return to Earth part is harder, but in the movie, they didnt want to return.

But they might want to get to other destinations in space.

 

[Pete Cortez]

Continuing discussion of planetary chauvinism and Marshots here.