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How about using gravity instead of radio waves? Gravity has detectable effects over great distances, and we currently have sensors that can detect and map fluctuations in gravity, so if you had a d...
The scales are fairly similar for each component you mention: simply, as you have a greater understanding of all of those fields, you are able to harness more and more energy. The fields you menti...
You could just make it out of adamantium or some other space-age indestructible material and let the natives do whatever they want with it. They can walk right up to it, bang on it with clubs or ax...
Here's an unconventional idea (which however assumes you are able to build large space constructs): Put a gigantic parabolic mirror around Barnard's star which concentrates the energy in a focal po...
There are many one-time energy sources around: They are called bombs. So maybe there's a leftover nuclear bomb around. People would naturally not normally want to trigger it. However, if it is the...
I don't know about moving heat, but seeing and generating it would be interesting. We all produce heat, and our bodies let off infrared light. If you had an IR camera you could see someone in the ...
So time dilation isn't the way to go, because that just makes time slow down, not speed up. I think the only way you're going to be able to do this is by getting into String Theory (M Theory?) a l...
Here's one method that doesn't rely on either gravitational time dilation or simulation: If you look at the basic equations of quantum mechanics, you notice that if you scale all masses by a commo...
See the short story "Clothes Make the Man" by Henri Duvernois. In it, Tango, the stupidest of a threesome of thieves, is told to stand guard outside a home the other two are robbing, dressed as a p...
Float the city. Dig under it and put in structural bracing to support the buildings and then tons of pontoons. Then let the ocean in to let the city float up, and then tow it up the coast to th...
Problems for humans The deepest tunnel-like structure created so far is the TauTona Mine in South Africa. The bottom of it is 2.4 miles below the surface. Temperatures there can reach 131°F, whic...
In Real Life Awesome question, because A) It's a cool idea and B) We know just what will happen. The principle here is planetary migration. This phenomenon is common in many planetary systems. Du...
Since in your world, there are no natural time cycles, life will not have an external synchronization. Therefore the main changes in your world will be to changing weather (unless your world doesn'...
While there would certainly variations, I think for the dominant treatment there would be only three possibilities: Enslavement. If we can keep control over the dogs despite their intelligence, t...
Well, I'm not a biologist or biochemist, but I think your scenario could be made to work (although still very unlikely) as follows: Our genetic code is based on four nucleotides which make up two ...
Raw materials may be available everywhere, but maybe the best FTL drives are built in the Aldebaran system, the best conventional thrusters are built around Barnard's Star, the asteroid mining equi...
Yes, the ends of a wormhole basically behave like a normal celestial body (assuming there's no additional physics not yet known to us that affects their movement). They would move with the expandin...
A derelict oil rig is what you are looking for. At least one has burnt up and left something standing that may still be there. There may be sea forts in the north sea that are far enough away and...
A few scenarios could occur. A near miss If the object is from outside the Solar System, then its velocity may be greater than the Solar System's escape velocity, which could mean that its veloci...
Couple ways it could work: Magnetic fields The planet could have a really strong magnetic field. Earths magnetic field protects us from a nuclear furnace that's relatively close by. Likewise, the ...
A soletta/solar mirror could work. In Green Mars a giant solar mirror is put in Mars L1 point, and magnifies the sunlight to make Mars brighter and warmer. It's held in place by stabilizers and ...
In four dimensions, you don't have a rotation axis (fixed straight line) but a rotation plane (fixed plane). However, not every 4D rotation has a rotation plane; there are rotations which have no f...
Let's build a universe. To describe this universe, we need a metric. I won't go into details about the precise definition - for more, see Wikipedia, as well as Physics and Mathematics. In this cas...
To add to the other answers, there's also the possibility of the water appearing to run uphill due to a an optical illusion. I'm not aware of any river where this is the case, but since it happens...
There is much the same problem with teleportation. Let's compare the two: Teleportation I am going off what seems to be the most accepted method - it's not the only one. You are taken apart int...
