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For questions that require plausible (better than suspension-of-disbelief) answers based on Real World science that are not necessarily constrained to the known limits of Real World science. Contrast with the hard-science, science-fiction and internal-consistency tags. This tag may not be used alone. This tag may not be used with the science-fiction, hard-science, or internal-consistency tags.
22
votes
What are some of the most powerful theoretical sources of energy?
I would highly suggest that you read the Isaac Asimov book, The Gods Themselves. In this story, humans transport matter between a few parallel dimensions where the fundamental laws of nature are diffe …
4
votes
How could fungi evolve intelligence sufficient enough to develop a civilization
Nobody seems to have mentioned it so far, so I'll just put this out there as a suggestion.
Instead of having a fungus go through the extraordinarily unlikely process of evolving to the point of intel …
6
votes
Planning intra-city public air transport
The reason you don't see many air-based transportation in modern cities is simply because it is impractical. Ground transportation is simply much faster for short distances, and much cheaper (uses muc …
2
votes
How can I make the supporting pillars of an underground city less obstructive?
If it's possible (and I assume it might be, considering the Lizards are able to make such grand feats of engineering), I would suggest quantum levitation with superconductors. I'm no scientist, but th …
3
votes
Could you fly airplanes on Jupiter?
Something other answers don't seem to have mentioned yet:
Jupiter has some pretty wild winds. The red spot you see in pictures is a storm that is literally the size of the Earth. So, I feel like the i …
1
vote
Would it makes sense for medieval warriors to carry giant bladed weapon on weak gravity?
The problem in a setting with low gravity isn't the weight of the weapon so much as it is the weight of the user. Imagine if you weighed 1/10th your usual weight, and you're trying to swing a gigantic …