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2 votes
7 answers
2k views

Is a world laser possible?

0 votes
2 answers
36 views

What would the effects of a space based laser weapon system capable of tracking and destroying any projectile posing a threat to human life?

7 votes
3 answers
382 views

Assuming other variables are good, could earth plants survive the light intensity on the surface of Mercury?

4 votes
5 answers
490 views

How would a scaled-up ballista designed to launch 50-foot spears function?

10 votes
6 answers
4k views

Feline rider's position: reclining, seated or Prone?

15 votes
9 answers
5k views

Can an n-dimensional being hurt an (n+x)-dimensional being?

3 votes
7 answers
2k views

Combat between flying power armor: how would it work

12 votes
11 answers
3k views

What is the best term for a species that originated on another planet?

1 vote
2 answers
85 views

Maximizing efficiency of the The geodesic sphere (literally being on cloud nine)

17 votes
18 answers
5k views

What would be a way to make uploading a mind into a computer an actual transfer instead of just making a copy?

12 votes
6 answers
3k views

Do seasons occur on a tidally-locked planet?

4 votes
6 answers
1k views

What types of materials would be generated by a lava monster that has been cooled down rapidly?

10 votes
22 answers
5k views

Necessity of army and navy in a space warfare setting

3 votes
1 answer
327 views

Could alkaline digestive system work?

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