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manassehkatz-Moving 2 Codidact
  • Member for 5 years
  • Last seen this week
  • Silver Spring, MD, United States
36 votes

Why would radio signals be invented/transmitted when communication is not an issue?

23 votes
Accepted

How to explain why a mind reading superhero doesn’t hear everyone’s thoughts all the time?

20 votes
Accepted

Feasibility of entirely self-supporting fortress

16 votes

In a post apocalyptic world, how long would hospital equipment survive?

16 votes

Self-destructing messages

14 votes

How does a time traveler prove he or she is from the near past?

13 votes
Accepted

How in a post nuclear apocalypse setting could a group of survivors set up a "Internet" or "Internet-like" service?

13 votes

Safety acronyms for space travel

12 votes

Microgravity BBQ setup

11 votes

What would happen if humans never discovered agriculture

11 votes

What light colors/bulbs should be used inside a spaceship?

11 votes

Aliens performing successful medical procedure on humans at first contact?

10 votes
Accepted

How possible would it be for a whole city (and smaller towns) to be built on water?

9 votes

Death toll of a week without technology?

8 votes

Is this sudden global cooling scenario plausible?

7 votes

Everyone on starship enjoys classical music. But why?

7 votes

Is it possible to genetically modify a plant to become sentient?

6 votes
Accepted

shared measurement units

6 votes

Is using mine shafts to control a building's temperature logical?

6 votes
Accepted

Designing the fallout shelter: Exits

6 votes

Striving to develop a single-system management

6 votes

What materials would be needed to build a homemade spaceship, in the apocalypse?

5 votes

How much technological regression is plausible?

5 votes

Best way to have a Fallout “Vaults” work?

5 votes

Micro Missiles combined into a compact rifle platform?

4 votes

When will the last unambiguous evidence of mankind disappear?

4 votes

Why would a more technologically advanced society continue to build many buildings out of stone rather than glass and metal?

4 votes

How long would a medium sized city last if transplanted to another world?

4 votes

Enforcing a speed limit in medieval times

4 votes
Accepted

Oh crap, it’s 2020ad, and the Earth is about to explode! Can we make it to the stars?