User Simba

15 votes

Is there any plausible reason for a robot's eyes to glow?

answered Aug 22, 2016 at 8:35

13 votes

Why might a planetary recon craft need to be manned?

answered Jul 12, 2016 at 9:09

12 votes

Keeping supplies for 1000 years

answered Sep 5, 2016 at 16:06

12 votes

What kind of recurring phenomena could cast darkness on a planet for days/weeks at a time?

answered Mar 3, 2017 at 14:22

12 votes

Why do people continue to live in an unfavorable location when there are significantly greener pastures?

answered Jun 1, 2016 at 14:55

11 votes

Would humans be able to derive nutrition from foodstuffs found on alien planets?

answered Jul 20, 2016 at 8:46

10 votes

Reasons why air travel isn't feasible, but ground travel is?

answered Sep 22, 2017 at 10:53

5 votes

Is there an actual use for Gold Tools?

answered Oct 16, 2017 at 14:14

5 votes

Could we mine the Moon if we replaced the taken mass?

answered Sep 2, 2016 at 14:57

4 votes

If everyone looked the same, what is your identity?

answered Dec 12, 2016 at 15:18

4 votes

Would aliens that evolved on low gravity planets be able to cope with Earth's gravity?

answered Jul 19, 2016 at 14:04

4 votes

Economy without inflation

answered May 11, 2017 at 11:50

3 votes

How to ensure stagnation of population figures without slaying inhabitants?

answered Jul 25, 2017 at 15:50

3 votes

How can an unimaginably huge life form reliably communicate with mortals?

answered Mar 30, 2017 at 14:35

3 votes

What could cause the Earth to be so endangered that mankind needs to relocate to another system?

answered Apr 21, 2017 at 14:58

3 votes

What could lead a very poor country to arise as an economic powerhouse?

answered Oct 27, 2017 at 10:20

3 votes

Creating a barrier between continents

answered Mar 7, 2018 at 14:44

2 votes

What could cause sudden localized atmospheric pressure change?

answered Oct 6, 2017 at 8:43

2 votes

If an inventor discovered how to build a teleportation device and used it, what laws would he have broken and could he be successfully prosecuted?

answered Sep 19, 2017 at 10:39

2 votes

What kind of recurring phenomena could cast darkness on a planet for days/weeks at a time?

answered Mar 3, 2017 at 14:25

2 votes

What kind of recurring phenomena could cast darkness on a planet for days/weeks at a time?

answered Mar 6, 2017 at 9:26

2 votes

What does Earth have to offer for an alien civilization

answered Jul 22, 2016 at 13:15

2 votes

Erosion of buildings on geological timescales

answered Mar 1, 2017 at 16:10

2 votes

A King's son is born after the King has died and his brother has inherited

answered Sep 19, 2016 at 16:14

2 votes

How cheap would FTL have to get to be practical?

answered Sep 8, 2016 at 12:29

1 vote

Could Nazi Germany, Surviving WWII, Survive the Cold War?

answered Sep 8, 2016 at 13:38

1 vote

How to explain the use of high-tech bows instead of guns

answered Oct 28, 2016 at 12:24

1 vote

Can spacecraft defend against antimatter weapons? How?

answered Nov 14, 2016 at 11:20

1 vote

How would humans adapt if low-wage labor was done by robots?

answered Aug 15, 2016 at 11:35

1 vote

Reinventing computer not being bound by legacy issues

answered Aug 17, 2016 at 9:51

Stack Exchange Network

40 Answers

Is there any plausible reason for a robot's eyes to glow?

Why might a planetary recon craft need to be manned?

Keeping supplies for 1000 years

What kind of recurring phenomena could cast darkness on a planet for days/weeks at a time?

Why do people continue to live in an unfavorable location when there are significantly greener pastures?

Would humans be able to derive nutrition from foodstuffs found on alien planets?

Reasons why air travel isn't feasible, but ground travel is?

Is there an actual use for Gold Tools?

Could we mine the Moon if we replaced the taken mass?

If everyone looked the same, what is your identity?

Would aliens that evolved on low gravity planets be able to cope with Earth's gravity?

Economy without inflation

How to ensure stagnation of population figures without slaying inhabitants?

How can an unimaginably huge life form reliably communicate with mortals?

What could cause the Earth to be so endangered that mankind needs to relocate to another system?

What could lead a very poor country to arise as an economic powerhouse?

Creating a barrier between continents

What could cause sudden localized atmospheric pressure change?

If an inventor discovered how to build a teleportation device and used it, what laws would he have broken and could he be successfully prosecuted?

What kind of recurring phenomena could cast darkness on a planet for days/weeks at a time?

What kind of recurring phenomena could cast darkness on a planet for days/weeks at a time?

What does Earth have to offer for an alien civilization

Erosion of buildings on geological timescales

A King's son is born after the King has died and his brother has inherited

How cheap would FTL have to get to be practical?

Could Nazi Germany, Surviving WWII, Survive the Cold War?

How to explain the use of high-tech bows instead of guns

Can spacecraft defend against antimatter weapons? How?

How would humans adapt if low-wage labor was done by robots?

Reinventing computer not being bound by legacy issues