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Whoever has this machines and the resources to operate it, basically has absolute power. It is the ultimate weapon (just delete your enemies). It will allow you to go to space easily. It will allow...
Use a solar sail. Advantages: Solar sails are lightweight(-ish) They can be used for propulsion According to Dandouros et al., solar sails built with technology in the near future could easily...
I would say it's a bit of independent space that's "glued" to ordinary space at the entry door. That also explains how time travelling works: That independent space is "unglued" from space, and the...
Your advanced civilization stored all knowledge in electronic systems. Moreover, all work was done by robots or androids. Therefore humans didn't have much practical knowledge (it wasn't needed bec...
Well, as scientists have found out, the universe is full of dark matter; indeed there's more than five times as much dark matter than ordinary matter. Now dark matter is called such because we cann...
It would take a lot of ruthlessness, and even then rumors would get out. Any members that get out of line are eliminated, anyone that asks the wrong questions has an accident. First, being a socio...
It all depends on how obliterated you want the Earth to be. If you want nothing left, you need to completely destroy Earth and accelerate all the remaining fragments so that they clear the area pr...
The second law of thermodynamics dictates that without a decent amount of energy, existing physical structures will decay because there are more ways of arranging an unordered structure than one ca...
We'd get on the phone to some of the people who did it the first time. No, seriously. We have a lot of experts in this field who are still alive, and they may well hold enough knowledge between th...
Fungus-like plants grow well without light; they just need something to feed on. So there are insects that feed on the fungus, and larger animals that feed on the insects. The fungus feeds on the d...
Do it digitally. A screen is still 2-dimensional, no? However, a screen allows you to add functions such as rotating the map - a tried-and-tested method of showing 3D. See Google Earth for an exam...
A 3D map showing the topography of the area was created by NASA and the British Antarctic Survey: This is what the continent would look like if you instantly removed all the ice and snow. A map ...
Instead of thinking about how the body changes, I propose you think about how the food might change. In your world, there could have been a cataclysmic event that removed digestive enzymes from ex...
Maps I made a partial example map for the birds of a land called Tjerokya. It uses (crude) arrows to show the path of currents traveling across the land and sea. Indicating changes in three dimens...
Most realistic way is centripetal force, which is the rotating wheel that you see on space stations and ships in movies. Linear acceleration also works, but requires you to maintain constant thrust...
You could be looking for a weather phenomena similar to June Gloom, which is a weather pattern that happens yearly around June in southern California, resulting in overcast skies and cooler tempera...
The need for surprise attacks. Most humans (and, in many cases, animals) don't think in three dimensions. All of the people we interact with are, in general, at the same elevation we're at, moving...
There are two parts to the problem: short-term issues and long-term issues. Short-term issues Part of the problem of the Three Generation Rule is that people like procrastinating. Why do today wh...
As this answer says, most musical instruments as we know them won't work underwater. You might see something completely new arise, but we should assume that people will first reach for what is eas...
Parents don't want their kids to die of cancer or diabetes. Nor do governments want to spend billions treating these conditions. Laron dwarfism is a genetic condition that causes the growth hormone...
Because of radiation and other dangers, a lot of people think that stations on the moon will be buried or dug down deep. There are extinct volcanoes on the moon, which means there could be lava tub...
Water pressure gets very problematic very quickly: The deeper you go under the sea, the greater the pressure of the water pushing down on you. For every 33 feet (10.06 meters) you go down, the ...
I don't think that any of them would have an advantage over corals when it comes to building reefs. Perhaps they could manage to build some, but it would be hard. Echinoderms Coral create coral r...
TL;DR: No. Programming languages are too diverse. Reason 1: Purpose There are, according to Wikipedia's list of programming languages, 806 distinct programming languages, excluding BASIC dialects...
Prevent contamination. Contamination is something that NASA and other space agencies are careful about when sending rovers to other planets (e.g. Mars). Rovers could accidentally release bacteria ...
