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For questions that ask if a given concept is consistent, or being used consistently, in the context of the referenced world rules. Answers should say yes or no, with supporting info. This tag should not be used with the science-based, hard-science, or science-fiction tags. Comparisons to the real world should use the science-based tag. This tag may not be used alone. This tag may not be used with the science-fiction, science-based, or hard-science tags.

2 votes

Which major solar system body could most realistically be artificial?

Let me give a different answer from the others. Pluto Why Pluto? Simply because it is by far the least explored of the major astronomical bodies, and the least likely to have had it's artificial sta …
DJClayworth's user avatar
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7 votes
Accepted

How would an aquatic race of humanoids move as flawlessly as humans do on land?

There are two big barriers to walking around on the sea bed like we do on land. Ignoring the obvious one about breathing, which we assume is solved, the others are: bouyancy drag Bouyancy means th …
DJClayworth's user avatar
  • 4,099
12 votes

My perfect evil overlord plan... or is it?

Your plan has a fundamental flaw that is nothing to do with technology or process. Human beings are stupid and won't believe you. I mean it's not like they don't already know the earth is doomed if …
DJClayworth's user avatar
  • 4,099
7 votes

How to protect your army from weather controllers?

Assuming that the strongest storms that can be generated are about equivalent to the strongest storms on Earth, the answer is: Tanks According to this article, an EF2 Tornado can just about lift …
DJClayworth's user avatar
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10 votes

How would the lifts work on a space station which worries about hull breaches?

You don't need to put bulkheads or doors within lift shafts, as long as you have airtight doors at each floor. In other words it's not necessary to have a door or bulkhead between floors 2 and 3 of t …
DJClayworth's user avatar
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8 votes

How could we fake a moon landing now?

You are missing the obvious approach. This is how faking something is done in 2019. Step 1: You make a cheap fake moon landing with poor quality faked footage, no spacecraft, nothing sent to the moon …
DJClayworth's user avatar
  • 4,099
9 votes

What non-electrical, basic tool from today, could be made that would change the world in anc...

The invention that would have The most impact if John could get it accepted would be 3 field crop rotation. A 50% increase in farm output would be huge. Persuading farmers to change their ways would b …
DJClayworth's user avatar
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3 votes

Is there a precedent for inventing a new technology many years before anyone else?

Post-it Notes. The original 'low-tack pressure adhesive' that makes Post-it notes possible was invented in 1968, and I don't know of any contemporaneous inventors. The application of the adhesive to …
DJClayworth's user avatar
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54 votes

How can I prevent the collapse of the Soviet Union?

You need a real historian to make sure these are really feasible, but let me put some ideas out there. Most of these suggestions are variations on a theme, which is: Let the Soviet Union take over We …
DJClayworth's user avatar
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