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First, the good news: You still can have quantum stuff. All the quantum weirdness already exists in non-relativistic quantum mechanics. Without the speed limit, full relativity is, of course, out ...
The angular resolution of the naked human eye is approximately one arc minute, or 1/60th of a degree. (Also a nice illustration of what this means in practice, which just so it happens also shows t...
The hard part here would be that the medium this civilization lives in would be fairly disturbing. Ocean currents can fluctuate easily in certain spots, creating chaotic flows. Maelstroms and other...
Neil's completely right that the question is a bit confusing. There are two scenarios here: The planet orbits in the same plane as the stars, or it orbits 90 degrees perpendicular to them. There's ...
Not a lot would be different, actually. Let's take the orbits of the planets around the Sun. In the Newtonian world, gravity is represented by Newton's law of universal gravitation: $$F=G\frac{m_1...
Assuming you have a map, I would first plot out all the different settlements. Towns, cities, villages, hamlets, outhouses - everything. Now connect them in straight lines. Completely straight. It ...
Physical properties If Jupiter turns into a star, it would likely turn into the least massive star possible. This would make it a red dwarf - in particular, a red dwarf of spectral type M9V. We ca...
At least the Artemis project thinks it is possible. The process they describe is $$\rm FeTiO_3 + H_2 \to Fe + TiO_2 + H_2O$$ and then split the water to hydrogen and oxygen (note that after splitt...
Well, one obvious effect of cats acquiring flight ability would be that they would be much more effective in catching birds (it of course depends on how well/fast the cats can fly). Probably the nu...
Let me add another point of view. Most answers assume that the large brain evolved in order to gain intelligence. However, I've once read another hypothesis (unfortunately I don't remember where): ...
If a universe is a simulation, then, logically, it must have all the natural laws built into it. Agreed? Now, if it is a deterministic universe - that is a universe where, theoretically, you could ...
Yes and No Quantum mechanics is full of probability. You simply can't get around it. You can never know for sure if a particle at time $t$ in the future will be at point $A$ or point $B$. Quantum ...
One quite nasty type of bug (which can especially be hard to find, and can give quite inconsistent results) is out-of-range indices, in a language which doesn't range-check indices (likely to be us...
I suspect that they would lose any flying ability rather quickly. Here's why: If you own a cat, you probably have an emotional attachment to it. Perhaps that's a strong attachment. You'd be pretty...
Plausibility To answer your implied question about the possibility of this high pressure: Jupiter's surface has a pressure of 100 times the Earth's. Cosmically, pressures this high are trivial: th...
Here on Earth, the majority of weather-related events happen in a layer of the atmosphere known as the troposphere. It lies from Earth's surface to approximately $20 \text { km}$ - at its highest. ...
First, the deadliness of a virus can vary widely from mostly harmless (Herpes) to very deadly (Ebola). However, note that even for Ebola, there are people who survive without treatment. Indeed, Ebo...
Here's a quick guide to changing the orbit of an asteroid: Figure out where it is. This is the crucial bit. You need to know its position, mass, velocity, orbit, size, density, and composition, a...
Secure $850 quadrillion, preferably in cash. Figure out a way to get around one or two famous and fairly successful treaties. Build a Death Star. Modify the Death Star so it won't blow up the enti...
I'm going to give you a cautious "yes". The reason I'm being cautious is that it depends partly on a hypothesis that is, and has always been, controversial. If it's correct, then absolutely, this s...
As has been discussed already, different objects would fall at different speeds. Why? Wikipedia led me to an interesting derivation. Consider Newton's second law: $$F=m_ia$$ Now consider his law o...
This is a really cool question, and I think I can (partially) answer it. Here goes. If two portals are placed a different heights, someone approaching the higher portal should perceive a gravit...
In any epidemic situation, there are a few important steps to work through: Contain Treat Learn Containment Fortunately for the rest of the world, Britain is an island. That takes care of a fa...
Very well thought out. A) I'm sure the conversion from armored battle fleet to floating colony would take a while, but that would be ok because you wouldn't need it to be done in a hurry. It would...
Someone is trying to do something like this on a smaller scale. But you could do better. Construction Thankfully 50 meters isn't all that far down, so while it will take some heavy duty construc...
