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One of the issues with doing this is that righting the pole is not enough. They're likely working with 11kV or even 33kV lines (depending on the country, but it'll be in this ballpark), which are u...
So a bit of study has already gone into answering this question. To blow up a planet into tiny rubble Death star style, it would take 2,000,000,000,000,000,000,000,000,000 joules of energy. The ent...
My first bit of advice would be to drop the idea of magnets or anything magnetic as being the mechanism. To have it occur "naturally" would involve too many contortions of planetary mechanics and u...
One of the best adaptations for climbing is simply length of arms and legs (arms may or may not be necessary depending on the type of climbing). For example, my daughter was a great climber when s...
DNA DNA may be a key. If they are DNA based and have sufficiently advanced technology, they may be able to use a single cell from a human to decipher their entire DNA structure and meaning, includ...
It only depends on alien intelligence and technology for scanning and examining the bodies. The human body (like any other animal's body) is a self-sustaining machine, the parts have functions, a...
I don't think real-life sharks have that level of intelligence. But maybe I'm wrong or we can just assume that the sharks in your world do. What do humans offer the sharks? Dogs became domestica...
If there are a few injured humans and we presume their injuries are different (they could be related, like everyone has a broken bone but in a different place) then the humans can help the aliens h...
Ok, so using Rigel as an example: Rigel has a luminosity of 120,000 sols, so for a planet to receive the same insolation as the Earth does around the sun, it would orbit at a distance of 346.4 AU....
First, I'll say that it would be a lot better to have your characters descend from or be raised by capital D Deaf people. This way you get an established Sign Language (which can morph like any la...
The host takes what it needs - except the essential element that the Symbiote needs a constant supply of. The Symbiote's alien biochemistry means the same things the host needs are sustaining - bu...
First, I agree with L.Dutch; so I am avoiding duplicating that answer! String Theory is already defeating itself; there have been two books written on the problems within it. Not Even Wrong (The F...
Okay, your science is WAY off. 1) While it's true that women lose a fair number of eggs from their ovaries every month, well beyond the number of mature eggs that are released, your actual numbers...
Many soils are already edible. Clay. In fact, clay is harvested and purified as a nutritional supplement. It doesn't add nutrition but it is used in that manner...you can eat clay to help deto...
It looks decent, though I agree with Blade that the mountains suddenly stopping side to side is odd. At most they should continue into the ocean to form either lowlands that aren't inhabitable, se...
Transit simulation I simulated the transit of your spaceship in front of a Sun-like star. Besides the dimensions of your ship, I made the following assumptions: A roughly circular orbit, with se...
You can have tectonic plates even on a water world, that is still "land" under there, you just have enough water to cover it all. In your case, any tectonic plates carrying enough land to break t...
A naive first calculation The formulas for orbital velocity and escape velocity are $$v_o=\sqrt{\frac{GM}{r}},\quad v_e=\sqrt{\frac{2GM}{r}}$$ I get $v_o=9.6\text{ km/s}$ for Saturn. For this to e...
There are a number of ways a star can lose mass, and I think it's worth talking about them: A normal coronal mass ejection may contain $\sim10^{-18}M_{\odot}$, which is also extremely low. Eta Ca...
Could they have pouches on their torsos that allow them to carry things? These could be there via evolution, genetic engineering, surgery, or something less invasive. A mouth and/or a prehensile ...
Gravitational instabilities There's actually a second idea for planet formation that's been around for some time (see Kuiper 1951). It requires the nebula hypothesis, like accretion, but it's a to...
It may be a good year for Evil Overlords, but I want you to take a moment out of your busy day to consider the welfare of those whose lives (well, OK, "existences") are not going as well as yours. ...
AGN structure and emission Let's talk about the structure of an active galactic nucleus like a quasar, and the types of emission we see from it. The classic unified model of an AGN consists of a s...
The only modern contagious disease I can think of that wasn't around then is HIV. But you'd probably know if you had it, and it's not easily transmitted (unprotected sex, and not all kinds, and sh...
In the book The Martian, the main character accidentally freeze-dries his entire potato crop after an atmospheric breach. This is an author who did meticulous research. The potatoes were complete...
