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Results tagged with science-based
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user 65528
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.
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A fake starry sky
They are distant galaxies seen from a rogue star drifting through intergalactic space after being ejected from the galaxy in which it formed.
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How could a civilization stay at a medieval tech level for millions of years?
a lack of metals. If copper and iron are rare you have trouble making tools and machinery. You would even have trouble working stone and wood. It could still be done but it would take much longer. an …
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2
votes
Euro-American Maglev Railway - Transit without stopping
As other have said it does not work well. I would like to point out that the concept was tried at Disney World with the Tomorrowland Transit Authority people mover. It was a moving sidewalk that match …
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7
votes
What are the maximum and minimum day-night cycle lengths humans can adapt to?
For many year the USN submarines used a 18 hour day, 6 hours on watch, 6 hours of sleep and the remaining 6 hours for meals, additional work, and free time.
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0
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Picking a biometric lock
Go to you tube and search for the lock picking lawyer.
He has a hobby of "picking" and bypassing locks of all types.
His answer for most biometric locks is a powerful magnet. Such locks use a solenoid …
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6
votes
Would a single solar system be able to come up with a main time system?
Use the rotation of the sun. 1 solar rotation would be the equivalent of a day. So many days is a week, month, year and so on. That way you are not favoring any one planet.
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Obtaining laser
Lasers require an energy source and a lasing medium. The lasing medium can be a gas or a crystal such as ruby. Being a dragon, a ruby makes a good story choice. The energy source can be chemical, but …
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vote
Electricity free spaceship
Lets really go retro and propose a steam powers space craft. A nuclear power plant generates steam and the steam is used either directly for things like cooking, indirectly by rotating turbines to cir …
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6
votes
Non-electric Laser
There are also chemical powered laser. See https://en.wikipedia.org/wiki/Chemical_laser. they are very dangerous chemicals, but they can be very powerful.
Lasing is caused by electrons dropping for h …
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6
votes
Explorers living off the sea
While fishing can supplement their diet, historically they had to carry both food and water. Fishing was too undependable. Water is usually more limiting. it is bulky and heavy. Large wooden barrels w …
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Under what circumstances would a species with 2 sexes evolve into a species with 1 sex?
Have two genetic contributors allows for more genetic variety in a short time. Asexual production produces what are basically clones, identical copies of the single parent. there will be some evolutio …
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Creating a steampunk-esque/cybernetic "Big Iron" revolver
Look up the "le mat" revolver. this was a US civil war revolver that held 6 normal bullets in the cylinder, but the center of the cylinder was shotgun chamber firing buckshot.
https://en.wikipedia.org …
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Stop all mobile phones with EMPs
The starfish test of a 1.5M ton warhead in 1962 caused an EMP pulse in Hawaii which was 900 miles away. It shut down their phone system. Starfish test
This was not a weapon designed to cause an emp pu …
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Need help to solve the problem with the number of armed forces
Interstellar wars are fought by automated starships, basically drones maintained by robots. The ruling empire has been around for a long time and has been able to construct a large number of such ship …
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1
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How do we replace printing by automated writing?
Morse code, messages can be encoded using 2 characters. while tradition Morse code uses dits and dahs based on the sound. they are also known as dots and dashes based on marks made on paper by a pen b …
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