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I'm doing some planning for a fantasy comic and I was just wondering how the rest of the world would look if sea levels rose enough to completely submerge the U.K. Specifically I'm interested in ma...
Some of our ancestors were more robust than modern humans. Could they adapt to a 2-g world better than we might? Maybe even 3-g? Over time their bodies could evolve, i.e. only the most robust wou...
Someone invents a machine that creates electrons. It takes in some electrically neutral matter, and produces electrons of equal mass.1 Let's consider two quantities of negative charge: $q$ is the...
I was reading about the rogue planet PSO J318.5-22 which is thought to have molten iron rain and things like that, and I vaguely remembered from uni that almost all iron mixtures have a slushy eute...
Humans show aggression by baring their teeth, dogs show aggression by growling and cats, by hissing. All groups of animal show aggression in a way that makes it clear to attackers that they are agi...
I am building a world with many deserts and swamps. So a simple question: Are there any real world examples of where a desert and a swamp meet each other? Deserts and swamps are vastly different ...
A bit of a whimsical question, or a few questions really. What would happen in a world with no air - no oxygen (plant life stop producing oxygen). Specifically, let's say the oceans shut down oxy...
I was thinking of a hypothetical universe in which electromagnetic waves decrease in intensity with the distance instead of the square of the distance. What kinds of effects would that have on that...
Follow up question to: How long time would it take for a space hulk to lose orbit? Let's assume that the spaceship crashes into the planet, I used the Impact Calculator to get some result of the c...
Context In the near future, humans will have manufactured machine sentience. Such a consciousness, the first of a new species, must operate on Earth. Constraints A memristor-based human brain a...
I'm trying (failing) to write a story set within the exclusion zone around a nuclear power plant incident set in the near future. The 'incident' that leads to the exclusion zone being set up isn't ...
What problems would perpetual fog cause to a country roughly the size and environment of Ireland? The country has all modern infrastructure such as power plants, roads, factories, hospitals, etc. ...
Let's assume that a human colony was established on an exoplanet, dozens of light years from another inhabited planet, with the expectation that no one"”not even the colonists' far-future descendan...
I am trying to imagine a scenario in which there is a world that has been terraformed in so far as it has water and oxygen but there is only one area which has been established as a strong foothold...
Cerebrospinal fluid is a thin layer of liquid that helps use avoid being knocked out (among other uses). Creatures with a thicker layer have more trouble being knocked out. I want my humanoids to n...
Carbon-based life planet with a plenitude of infinite energy crystals. Could it exist? Somehow, when my planet cooled down, there were crystals that output a fixed amount of electromagnetic radiat...
How can I explain that it only rains at night (i.e. from dusk till dawn) in a certain region? Can or must I make this meteorological phenomenon apply planet-wide? Can or must I restrict rainfall...
Several hundred years in the future, technology has significantly advanced to the point where we can far more efficiently extract energy out of the natural world we live in. As a result, energy has...
In the movie Oblivion, the Moon has been destroyed by invading aliens. Several shots of the moon show what is left: If the moon was somehow shattered like this, what would the effect be on Earth?
In the novel Ender's Game, all little kids are protected and closely watched via a 'monitor', a device that sees and hears through them. This happens from around age 1 to about 5 or 6. So my questi...
Here's the setup: You have a space station orbiting Earth. On this space station is an anti-gravity device powerful enough to lift a small ship on Earth up through the atmosphere and into the space...
This is for a novel I'm writing. The basic premise is that massive networks of mycelium running under the soil combine to form a decentralised intelligence that has been managing life and condition...
Let's say I have a roughly humanoid race (similar size, form, activity level, etc.) that spontaneously generates any energy that they need via Magic. However, they still need to eat some materials ...
In this scenario, the sun is a binary star, sharing orbit with an F-type main-sequence star. The first planet from that binary star is a Jupiter-like gas giant, orbiting one-third of an AU from th...
So it turns out that all of the people claiming global cooling were right. Our earth is heading towards freezing temperatures, and we need to raise our earth's temperature by 1°C as fast as possi...
