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So, my understanding of how Alcubierre drives would theoretically work is not particularly complete. I know it involves compressing and expanding space, but I don't really have an intuitive grasp ...
Suppose, for instance, you lived in a world filled with nasty monsters and other creatures of the night, all of whom wanted to kill you and eat you in various ways. Now, the good news here is that ...
Roughly how long could an 'Oumuamua type object get if created naturally or if created artificially using fused rock? What would be the limiting factor governing the length of such objects? Oumaum...
The right constraint Shipping lanes are not a result of a constraint of choice, but a constraint of resource. I could start a shipping company that takes a scenic route from A to B, but it will go...
Energy Storage: Nanocapacitors A Capacitor is two layers of conductive material separated by a layer of insulator. They contain no moving parts, have no chemical reactions, and charge extremely q...
Assumptions: A typical human has a mass around 70 kg. They consume about 1.1 W/kg continuously(I'm approximating) throughout the day or about 96 kJ/kg daily. This together with the average mass giv...
Turning my comment into an answer. 200 years is an incredible amount of time given our current rate of discoveries...so it's hard to tell what options we might have...though I would suggest our cu...
One of the promising forms of energy production that I know of, which isn't yet well developed enough but could take off and is scientifically sound, is focus fusion, as applied with a dense plasma...
If we assumed massive increases in computer power efficiency in the future, the Fujitsu K (http://www.fujitsu.com/global/about/businesspolicy/tech/k/qa/index.html#qa12), which is good for a bunch o...
This is a complicated answer since every piece of technology you mention is going to be improving over those 200 years. That said I think the answer will actually be a blend of several renewable re...
The power requirements are going to be highly variable. Just think about today's electronics -- you could put a set of AA batteries into your TV remote and have it work for years, but an identical ...
In the story Wang's Carpets (and part of the novel Diaspora), Greg Egan sketchily describes a high-dimensional universe which contains no analog for light, such that the aliens who inhabit this uni...
For the sake of fixing some image in your mind, imagine you want to practice some sport in a rotating cylinder world: whether it be launching a javelin, strike a tee at the golf club or scoring a 3...
On May 18, 1980, Mount Saint Helens made American history with an eruption that took 57 human lives and killed thousands of animals. It has released only a quarter of a cubic mile of ash, but it i...
I'm working with the idea of creating a sun made out of pure gold. Of course, this would be completely man-made. Why would anyone want to do this? Because I want a cool concept like that in my stor...
As I was thinking about space flight for my world, I thought about how they would need to know a planet's gravitational force before they could land, and found that humans figured out the moon's gr...
I have a planet orbiting a red dwarf and, as expected, it is tidally locked to its star. I know that these planets will have a very significant temperature difference between the diurnal and noctur...
Cooling in space is a well known difficulty. There are many unpleasant consequences like no stealth in space, difficult space battles which turn into a short wars of attrition (because you have to ...
I was curious: Suppose we built an O'Neill cylinder with an air mixture similar to Earth's (not pure oxygen). Does the air also get "thrown" down towards the floor of an O'Neill cylinder? If I sta...
Does anyone know an equation or something along those lines for calculating how many and the locations of atmospheric circulation cells for a planet? Also, does the planet's radius and atmospheric...
One of the cool things about the Moon is that the far side has a thicker crust that the near side.1 One theory explaining this is that the Moon was hit by an object, possibly a moonlet created by t...
Question requirements I think it definitely falls on the asker to demonstrate first and foremost that the basic tenets of their idea are feasible. Their question should show that they've done a go...
I have a story where a species of the very first (literally first) carbon-based humanoid life (surprise!) that happen to emerge roughly seven billion years ago (their home system were formed twelve...
The way I see it for now (and I reserve the right to change my mind in response to discussion in response to this :-)) All of these points are valid for both questions and answers in the standard ...
On topic for the community name only The question could be assumed to be on topic for the name of this community: "Scientific Speculation". It is indeed a speculative question about science that h...
