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Unanswered Questions

7 questions with no upvoted or accepted answers
6
votes
0answers
140 views
+100

Stellaser Part I: Trial by stellar Fire or The best design out of three for a solar powered 5 Petawatt laser?

I´m building a hard-sifi setting and want to use Stellasers (abbreviation for stellar laser) to provide thrust and power to interstellar vessels. This part one is only concerned with the construction ...
6
votes
0answers
240 views

The great battery swap

An alien contra-organization wants to spur the development of Earth to help humans in the near-future in presence of a prime-directive like law. They cannot establish actual contact, so they do the ...
5
votes
2answers
140 views

Would a More Extreme Icing of Antarctica Create an Extinction Event?

55 million years ago, the world was literally a jungle. It was so warm that plants like the bald cypress and the dawn redwood have been found at Ellesmere Island, right inside the Arctic Circle. ...
5
votes
2answers
62 views

light spectrum from a red dwarf star on a planet with an ozone and cloudy atmosphere

What light spectrum would hit the surface of a planet orbiting a red dwarf star? the planet has a humid, greenhouse & cloudy atmosphere, and a strong ozone, 80%+ surface water. Planet is tidally ...
0
votes
1answer
7 views

How can a team of shapeshifters communicate?

There is a group of people who can shapeshift. They send out hunting parties, scout teams, etc. In a circumstance where a group of ten people can look like ten different species (one human, one wolf, ...
0
votes
1answer
26 views

Growing seaweeds on lakes and seas in tundra-like biome

Ok so I was thinking about a viking like civilization living in a tundra biome. So other than raiding villages southwards or hunting wild beasts in the forest, could they cultivate seaweeds for ...
0
votes
1answer
43 views

Speed of light, Motionlessness, and Time Travel

i want to ask something I quote from some web and got this : 'According to Einstein’s Special Relativity Theory, time is affected by speed. It’s already been proven in the lab that subatomic ...