John Dallman's user avatar
John Dallman's user avatar
John Dallman's user avatar
John Dallman
  • Member for 7 years, 10 months
  • Last seen this week
  • United Kingdom
8 votes

How to create a "twilight" world around a red dwarf star

8 votes

What would happen if the justice system is replaced with a zero sum game?

8 votes
Accepted

How close to a supernova can a planet retain an atmosphere?

7 votes
Accepted

Mechanically correct rotorcraft aerial ship

7 votes
Accepted

Planetary system with a solar eclipse every day - need help designing

7 votes

Mapping the far side of the galaxy

7 votes

Reality Check: Habitable moon around earth-like planet

7 votes

Could a star explode and reform with new planets?

7 votes
Accepted

Halfday planetary scan: what do you get?

7 votes

Realistic Marvel indestructibility/immortality

7 votes
Accepted

Intercontinental radio broadcasting in a post-apocalyptic world

7 votes

Building a Dyson Shell around a black hole?

7 votes

What would happen if we sped up the rotation of the Earth's core?

7 votes

How do I design a city to be habitable under a constant barrage of low-yield nukes?

7 votes

Murder is Legal, now what?

6 votes

What traits would a species have if it eats electricity to survive?

6 votes

Roughly how many levels of command were there in a large WW2 army?

6 votes

Stages of Artificial intelligence's mental development to full personhood

6 votes

How can I get a high-quality blue-colored alloy?

6 votes

Are 60000 RPM electric motors enough to a tennis launcher-like weapon to launch a bullet at same speeds as conventional rifles?

6 votes

What effects would an Oracle have on society?

6 votes

What happens if a point of a ringworld is at perigee?

6 votes

How would a submerged continent quickly rising to the surface affect the geography of its surrounding lamdmass?

6 votes
Accepted

What would happen when an artificially-sustained miniature star could no longer be sustained?

6 votes
Accepted

Planetary division, survival and repopulation (threefold question)

6 votes

Why should I depend on my minions?

6 votes

What might cause an exoplanet to be uninhabitable for periods, that is not obvious to potential colonizers?

6 votes

Nomenclature for software beings

6 votes
Accepted

What would it be like living underneath a solar thermal tower in the middle of of post-apocalyptic city?

6 votes
Accepted

Would a Giant Pistol Prawn Snap work in the air?

1 2 3
4
5
11