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Your quadrabirds don't have to loose flight to have a walking fore-limb. Another answer already mentions that some groups of pterosaurs folded their wings when on the ground and used them for walk...
For ultimate spread and mortality, you want something that has the following properties in combination: High probability of infection when somebody is exposed to the disease (highly infectious) H...
I believe that an EMP attack would do what you want. 8-10 bombs launched on scuds from container ships and set off in low earth orbit, evenly spread around the north and south hemispheres, would ta...
Plants contain chlorophyll, which absorbs electromagnetic energy in the range 400-800nm, which happens to coincide with light tossed toward earth by the sun. Quite convenient. The plant uses this...
I think you may have been slightly mixing cause and effect. In your example insects, every egg the queen lays has equal potential to become a worker, drone, or future queen. It all depends on how...
Let's go more with the scenario you are describing, than the question you start out by asking (which appears to be only peripherally related). Let's assume that a "pebble" is approximately 1 cm3 i...
My chief reference here is Appendino et al. (2009), though this possibility was first brought to my attention by this National Geographic article. The Joker's real-world substance of choice? Oenan...
Give it a protoplanetary disk: Image in the public domain. Protoplanetary disks are circumstellar disks that form early on in the life of a planetary system, from the original protoplanetary ne...
13 square meters BIOS-3, a sealed, underground compound designed to mimic a spacecraft, managed to generate oxygen for humans using algae. Its specifics are outlined in an article by Salisbury et ...
The two ways historical kings, emperors, and such have gained the worship of their constituents is to either make the people love them or make the people fear them. Several other answers already d...
It seems like you've generated a chthonian planet, although typically, they're theorized to form when normal solar winds from a star slowly strip away the atmosphere, not the release of a star's ou...
In two words: absolutely yes. Cryptography, at its core, is not about computers at all. Sure; automated, programmable, electronic computers operating at about a gazillion instructions per millifor...
In order to get to the final state you mention, you are going to have to radically alter your initial state, which other answers hint at. Our planet's surface is mostly water, and your planet will...
Riding or Carrying a Pack - NO Suitability for this is somewhat a function of the shape of the spine. if you want a saddle or pack to hold on the animal, you want gravity to work for you and hold...
The core idea you have is very similar to that of an air well, and these have been around since ancient times. You are simply talking about building yours higher up in the atmosphere. The air wel...
Possibly by detecting resonance on a membrane through nerve signals. Sound is vibrations in the air, and when those waves run into things you get vibrations. Human skin is sensitive to sound to...
Ever heard of shepherd moons? Shepherd moons are moons (typically not very massive) that orbit in the middle of planetary rings, creating gaps in the material. They also keep the ring material wher...
Yes, you absolutely can have a moon orbiting within a ring system. In fact, we have a perfect example of that in our own solar system: Saturn's A ring has the Encke and Keeler gaps, wherein orbits ...
TL;DR: "Scientifically correct" (according to current established science) and "faster-than-light travel" cannot be used in the same context without some form of negation. What you are asking for i...
Let's imagine that the organism causing the disease (a virus) has two states, depending on whether or not it's inside its host. State #1: Active In this state, the organism is inside the host. It...
There isn't a reason why not. Computers communicate with just 1 and 0. DNA has 4 chemical bases, and humans have around 3 billion base pairs. There are sections of human DNA that are left over f...
The ship started out as a generational ship to colonize some far-away planet. However, when approaching that planet, nobody wanted to be a colonist. They lived on the ship, their parents lived on t...
One evolutionary path is if the fungus communicated using EM signals. Electrical synapses use electricity instead of chemicals to communicate with each other. This typically means that they have to...
Yes, in theory. Gravity assist braking is a thing The problem is the speed. Going that fast you'd need to do a lot of maneuvers in order to lose enough velocity to enter orbit around the sun, a...
Neutronium probably isn't the material that you want to use if you want to keep it even slightly plausible. It can't exist outside of a neutron star that has less than 2 solar masses squeezed into ...
