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I was the mod who deleted the comment - thanks for bringing this up. The main reason I deleted it was that I figured that the comment was primarily for the benefit of the poster, rather than the co...
There is no real issue here as far as I can tell. This was your comment: Fix that ridiculously long line that needs to be scrolled. You could write it as a list, for example. Currently, this post ...
Some time ago, I wrote a comment to this question. I don't remember the details, but something in the question needed to be fixed. I downvoted and left a comment saying I'd undo the downvote when...
So I thought about how my dragon-like species would get it's wings between the arms and legs and I figured that this would be the evolutionary path for such a creature: Hexapodal ancestor -> Q...
I don't think it is feasible for an elephant-sized hyena to hide on the actual hunting grounds, least of all from predators that have similar excellent senses. What it should do is to lay low some ...
Idea 1 Everyone needs water. Your Giant Hyena frequents watering holes and waits for prey to arrive. Maybe it camoflages itself with mud or lurks underneath the surface of the water. Once a target ...
What you are asking for is unrealistic. 3000 kg is huge. That's over four times the mass of a typical rhinoceros, for example. Being really large like that lets it bully its way to some other ani...
What coloration pattern/ technique could a large mammalian predator employ to evade detection from other mammalian predators at 100 -> 20 meter distances (or close enough so that it could sprint...
You are quite right. This has been fixed, thank you for pointing it out.
In the "Scientific Speculation FAQ" page, at the section "What are the different categories for?", the categories are described as: Q&A is for general questions. Researched Q&A is for que...
This question was discussed by Kyle Hill in his early video on the scene in Days of Future Past in which Magneto rips out iron from the security guard. He begins by noting that the large majority o...
There's apparently a type of transmissible cancer that came from new world dogs thousands of years ago, the Canine transmissible venereal tumor. As I understand, this self replicating surviving ca...
Yes and No. Yes: Therefore, strong enough magnetic fields have the ability to deform and even break objects. When a magnetic field gets stronger than about 500,000 Gauss, objects get ripped to pie...
Apologies for taking a while to respond to this. When I used the phrase "hasn't been discussed", I was talking about the meta discussion at hand, rather than prior discussions. I rejected the edit,...
Is it possible, given a strong enough magnet, to rip out iron based molecules out of the blood stream/body of a person/animal? Would such an event be the thing that kills someone or are there other...
Your question makes no sense due to its disregard of basic science. The atmosphere consists primarily of carbon dioxide and methane So did the early Earth's, and life was able to start here. This ...
In the foreseeable future, a scientific community has discovered an alternate universe in which the solar system centers around a binary system of G-type suns, unlike the one G-type that ours orbit...
Two months ago the question was asked: Do we want to keep the [science-based] and [reality-check] tags?. A month ago the same user asked: Are there tags we should remove from all questions...
Yes. By restricting the directions it can travel in, you can create an Alcubierre drive that can't be used as a time machine to create paradoxes. The simplest way to do this is to pick a single fra...
Yes, in my opinion. Other things being equal, the rate of heat loss from a human (or Neanderthal) depends on surface area. (You mention brain sizes but if that is in the expectation that a larger t...
How does a Neandertal compare with an anatomically modern human? This diagram below is a simplification of the real answer: The average Neandertal male stood 64 inches tall, weighed 143 pounds an...
NASA's Fundamentals of Electric Propulsion: Ion and Hall Thrusters by Goebel and Katz, JPL, March 2008 discusses the issue of current ion drive beam focus limits (along with many other matters rele...
Yeah, that's my fault. I wrote up an answer and posted it, but I deleted it shortly afterwards (and later undeleted it . . . and then redeleted it). I did so because I've been extremely active on S...
I received a notification saying that there's a new answer to my question: But when I clicked it, I saw no answers. I can think of 2 possibilities about what happened: There wasn't an answer and ...
Is it possible for a large enough Ion Drive with enough power to be dangerous to other objects "down wind" of the vehicle, even at long distances (100+km)? As I understand it, ion drives accelerat...
