- #1
lendrick
Greets!
Sorry for the random question... I realize this forum is about real physics, so I apologize if this post is inappropriate. I'm not speculating that this is possible -- it's more of a thought experiment about how it would appear if it were. :)
I'm pondering a sci-fi plot where some aliens are using an unknown technology to slow down time by roughly 20% on their planet, relative to the surrounding universe. They're doing this in order to make their planet habitable, because otherwise it's the outside of their star's habitable zone, and would be too cold for them. I'm trying to speculate what the effects would be on the appearance of the planet from the outside, and the appearance of the rest of the universe from the planet. Here's what I've come up with thus far:
* Viewing the planet from space, everything would be red-shifted (such that plants would be red-orange instead of green).
* Viewing their star from the planet, it would be blue-shifted. There would also be more ultraviolet radiation than one would expect.
* The planet would be warmer than expected from the perspective of people on it.
* Here's where I'm really guessing: If you were to orbit the planet, you would discover it is lighter than you expect.
* It would be orbiting the star faster than expected.
Am I handling gravity right? If an object is moving away from you fast enough to be red-shifted, is the intensity of its gravity less than it would be if it were stationary relative to you? Also, assuming the "time warping" field ends at the edge of the atmosphere, would it look like the atmosphere is refracting light in an odd way?
Thanks!
Bart
Sorry for the random question... I realize this forum is about real physics, so I apologize if this post is inappropriate. I'm not speculating that this is possible -- it's more of a thought experiment about how it would appear if it were. :)
I'm pondering a sci-fi plot where some aliens are using an unknown technology to slow down time by roughly 20% on their planet, relative to the surrounding universe. They're doing this in order to make their planet habitable, because otherwise it's the outside of their star's habitable zone, and would be too cold for them. I'm trying to speculate what the effects would be on the appearance of the planet from the outside, and the appearance of the rest of the universe from the planet. Here's what I've come up with thus far:
* Viewing the planet from space, everything would be red-shifted (such that plants would be red-orange instead of green).
* Viewing their star from the planet, it would be blue-shifted. There would also be more ultraviolet radiation than one would expect.
* The planet would be warmer than expected from the perspective of people on it.
* Here's where I'm really guessing: If you were to orbit the planet, you would discover it is lighter than you expect.
* It would be orbiting the star faster than expected.
Am I handling gravity right? If an object is moving away from you fast enough to be red-shifted, is the intensity of its gravity less than it would be if it were stationary relative to you? Also, assuming the "time warping" field ends at the edge of the atmosphere, would it look like the atmosphere is refracting light in an odd way?
Thanks!
Bart