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Results tagged with science-based
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user 6348
For questions that require plausible (better than suspension-of-disbelief) answers based on Real World science that are not necessarily constrained to the known limits of Real World science. Contrast with the hard-science, science-fiction and internal-consistency tags. This tag may not be used alone. This tag may not be used with the science-fiction, hard-science, or internal-consistency tags.
2
votes
Most efficent way to transmit binary data by human voice
I suggest combining the best of o.m.'s accepted answer and JBH's suggestion of singing, to use a spoken tonal approach. Many people use languages in daily life that rely on tone for meaning, so your …
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4
votes
How to heat a windmill ? (Mechanical to thermal energy conversion)
A bit more detail when it comes to friction, hopefully using materials that fit your scenario:
Early (car) brakes were often made of leather pressed against metal. Band brakes (wikipedia) are techno …
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7
votes
How to protect shops in the medieval era against thievery?
This assumes you want a slightly modern style shop with moderately large goods displayed for browsing.
Just have a single, rather narrow door with the shopkeepers counter right next to it -- and a c …
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4
votes
Biplanes landing on top of skyscrapers by means of a wind tunnel in retro-future Earth
The AN2 biplane (produced until 2001) can fly extremely slowly without stalling (50km/h is quoted, but so is "no stall speed"). Unlike the WWI-era planes suggested in other answers, it has a useful pa …
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4
votes
How to prevent guns from working?
The Trigger by Arthur C Clarke and Michael McDowell is all about a device that detonates explosives remotely. This could be used to disarm agents approaching (and probably injure unwary ones).
I have …
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3
votes
How quickly could a cyborg determine that a bullet has been fired from the sound alone?
To react to a sound compatible with a gunshot and assuming that it really is a shot and you're the target you can probably reckon on the dramatic increase in sound pressure being enough, but we could …
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2
votes
How to create a seawall with medieval technology?
A few points to consider:
Even in prehistoric times, people could move big stones (pyramids, Stonehenge). So you can build something with enough manpower and a source of stone.
If waves are the is …
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5
votes
LED light or heating element?
Here's another idea, but it's line-of-sight: Use a black balloon, and heat with an IR laser beam from a power source on the ground (over short distances you could actually use a follow spot). You co …
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1
vote
Lighter-Than-Air Bridge Technology
How about kites?
You'd need horizontal-ish guy ropes to counteract the lateral component of the force and computer-control of the kites' angles relative to the wind - perhaps you could assume a stea …
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1
vote
Is it possible for the soil of a desertic exoplanet to be so copper rich that its surface is...
Copper oxides are red (Cu2O a.k.a. cuprite) or black (CuO). I work with cuprite and it can also look black. Red oxide paint primer is based on copper oxides, as an example of how they look crushed up …
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