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In short summary A cockatrice is is essentially a a two legged dragon that has the head and body of a rooster, it also has a serpentine like tail and either has feather like wings or webbed like ...
So you decide to clone yourself, obviously the clone is a infant, but other wise looks perfectly identical. However, you start to think of how your new clone could be perfectly like you, in body st...
I'm writing a fictional story where non-primate mammals (and marsupials) evolved into different species of humanoids which roamed the earth. In my world humanoids have evolved from animals such as...
Horse were originally native to north america but between 13,000 and 11,000 years ago they went extinct likely due to expanding glaciers into their territory. The question I propose is how could I ...
In general, the problem with hollow-Earth setups is that objects in hydrostatic equilibrium cannot be hollow - and planets must be in hydrostatic equilibrium. Planets form through collisions of sma...
Does it differ from the early days of the internet - in another sense, would it be possible to handle with any protocols ever developed in the field of computer networks? No, that's not possib...
As other posters noted explosives often work totally independently of the atmosphere since they contain everything needed to explode. How about making explosives much more sensitive because of som...
So a very dense/heavy gas like sulfur hexafluoride has the ability to support the weight of objects, like a boat floating on invisible water. So you could have creatures that live on the surface, a...
A recent Snowball Earth period might help. Heavy glaciation can cause enormous changes to the terrain. There are no longer any glaciers where I live, but there once were, during a recent ice age. ...
Make it a ruse - an offering to the gods. I'm reminded, strangely, of the Minotaur. Every seven or nine years (accounts differ), seven boys and seven girls were sent from Athens to Crete in tribu...
One thing I can see working is a forced marbling of society. You see it all the time with immigrants; they move to a new country, find people with a shared background, move into the same communiti...
Teleportation as you describe it is a sudden change in location that the teleportee perceives through all available senses. We obviously can't test that on humans today, but we can get some clues ...
So having the toughest skin would allow for reentry. Getting out of the atmosphere and moving through space is another matter, but this is your creature in your world that you are building. If you ...
Surface gravity Surface gravity is really the most important quantity when it comes to determining many of your planet's properties. It can be used to constrain atmospheric composition, planetary ...
What could be learned? There are so many things you could study by looking at a black hole. There are lots of open or partially unsolved problems that surround them: Does Hawking radiation exist...
Assuming that you are right that a large moon could actually gets Mars tectonic and magnetic system working again... (which is an interesting idea) So after merging Phobos and Deimos and getting th...
Honestly, this kinda depends on a lot of factors: Size of the plates, distance from the star, orbital period, to name a very few. The suns surface is 12,000 times bigger than Earths, meaning if e...
One concept that comes up a lot in this sort of world (think Portal, Neal Asher's Polity series or Niven's Ringworld etc) is momentum. Portal states, "Speedy thing goes in. Speedy thing comes out,...
Try radiometric dating. Accuracy: $\pm0.11\%$. Radiometric dating - see also the excellent USGS page - uses the decay of radioactive isotopes of elements to determine the age of a sample. It works...
There are three ways a planet can be positioned in a binary-star system: The two stars are close together and the planet orbits both of them (technically it orbits their center of gravity). This...
Note: This answer assumes that those going to Mars have a high IQ (which I believe the OP intended), and that IQ is indeed a fairly good measure of intelligence. Yes. I think the question of th...
I don't think there is any inherent reason why a large number of "eyes" would necessarily have to imply the downsides of compound eyes. For an extreme example, you could consider each cone or rod ...
A paper I found suggests that the sunlit side might not be a burning desert as long as the planet isn't to close to the star. Basically the difference in heat between the light and dark sides woul...
The gate could be deep in a frozen arctic wilderness, like it is near the north pole, where there is just snow and ice and nothing else. No minerals, no land, no plants or animals. Natives could st...
This interesting planet temperature calculator might help you answer this question. I filled it out with guesses based on your description. 1 solar mass Distance of 1.524 AU (Mars orbit) Bond A...
