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In the novel I'm writing, there is an island that sinks below sea level and rises up again at a later date. How is it possible to do this, while both keeping the surface of the island dry when it r...
I am sure that this is a scenario we have all encountered. We have all of the expensive sensors that money can buy to protect our vintage collection of bottle caps and Golden Girls memorabilia from...
Imagine a world with time travel, got it? Good. Now imagine that time has multiple dimensions. Time has its OWN dimension of time, along which it can evolve. This is called hypertime, or "w" (As i...
I'm (slowly) working on a semi sci-fi world, set in a WWII-ish tech level (Semi sci-fi being how they got to this world). Except in this world, aircraft have developed significantly later, and batt...
In my near future of manned Mars exploration, NASA/ESA/etc have a dozen or so rovers spread out around Mars. For scientific purposes, the rovers 'talk' to each other via low and high gain antennae...
Disclaimer: First off, this is not a duplicate of this question. That question deals with stopping the hurricane, or preventing it from ever forming in the first place. It was discovered that wasn'...
I am trying to create a planet for a fantasy role-playing game where the equator is an impassible region of ice. Ideally, I want to find a science-based solution to this and not have to resort to ...
For my story, I need there to be a planet close to the home world of my species (in the same star system) that the species could easily get to and easily colonize, but that does not have its own li...
One thing that just about all interstellar civilizations need if they want to be anything more than long-distance friends is a way to get from their starships down to the surface of planets and bac...
In an Electric Universe, where space is plasma soup and electromagnetism is the "magic" that can defeat the laws of physics, all stars are connected by invisible Birkland currents. Picture the rop...
If the Earth was destroyed by a cataclysmic event such as a large mass colliding with it, such that it fractured into multiple pieces, would any trace of human civilisation remain intact ? I.e., i...
Planet Swamp. As the name suggest, it is a planet fully covered with swamps. A new kind of carnivorous plant has been discovered on this planet: when its leaves are touched by an animal or moved b...
Specifically, how many 5 to 10 kilometer asteroids could you fit around the Earth-Moon Lagrangian points? Does the number change depending on which Lagrange point it is?
How would this effect nature as a whole and our living conditions if it does? The color is not too far from blue so it should be more feasible and not change the Earth too much.
In its wandering through the Milky Way, the solar system is getting close to a solitary neutron star. The neutron star will "fly by" above the plane of the ecliptic and its closest distance from th...
There is a terrestrial planet called Paveiha that orbits a small Red Dwarf star. It is the third planet in a system of 10 planets. Paveiha is close enough to the Sun that it is tidally locked and t...
A planet orbiting an Red m-dwarf is tidally locked to its sun. Can it have a satellite which is not tidally locked to the sun? Also can the satellite be tidally locked to the planet ?
This hypothetical marsupial species raises young in a manner loosely similar to seahorses. Only the males have pouches: after gestation the female deposits the fetus into his pouch to compete devel...
If a child grew up since being a toddler (2 to 3 years old) in an environment where the gravity levels fluctuated so they were sometimes stronger than earth gravity and sometimes weaker, how would ...
With a Janka Hardness of 5,060 lbf, the Australian Buloke is considered to be the hardest wood on Earth. Compared to other materials however, it still yields a weaker Compressive Strength and Modul...
More specifically, would this heighten or accelerate the fight/flight response a person may have? Or would it make little difference? In the past I had come across rare stories where a person was ...
Suppose you took earth and gave it approximately 3 times the air, with most of the extra being N2 or Ar. Combustion goes up with the partial pressure of oxygen. So unless we want to burn down the...
Editorial Note This is a canonocal question meant to cover all possible specific questions that fit the schema, as well as the fully general "Can quantum entanglement be used for FTL communication...
I am working on a story which is based on space time hacking and moderation. While researching I found that a wormhole is simply a Folded time-space-as shown in demonstration below (Image credits: ...
So basically there is this ionocraft thingy and it would be used frequently by one of my stories, mainly by a lightweight character (6.3 kg). Now the question: If I were to use nanotechnology to c...
