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Results tagged with science-based
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user 10851
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.
6
votes
What would we need to stop a hurricane?
What a hurricane boils down to is a large difference in air pressure between two parts of the earth. Air from the high-pressure region attempts to move toward the low pressure region. Along the way, …
- 8,605
7
votes
Accepted
How to construct a loud sonic bomb?
What is sound? Sound is a pressure wave in the air.
What is a loud sound? Sounds are louder when the difference between the high (compression) and low (rarefaction) portions of the pressure wave is g …
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4
votes
Human echolocation for spies. What sound to use?
Your own question, a prior answer, and a comment collective already give us several parameters:
The human body must be able to produce the sound.
The sound must not attract the notice of others.
The …
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6
votes
"Night" sky between galaxies
Allow me to introduce you to the Cosmological Principle.
According to this, the universe looks the same everywhere, from wherever one stands, and in whatever direction one looks. After all, our plan …
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6
votes
How to determine one's position in space?
Triangulation does not require being able to determine distance. Here is an example on an earth-bound maritime navigational chart:
The ship in this situation would need to know in advance that it …
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3
votes
How can a jet-propelled horse work?
My answer is going to go well beyond what we can ever expect from reality, so I hope your definition of "rational SF" is fairly liberal.
This is going to be a major undertaking in genetic engineering …
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3
votes
What WWII technology could make a smart, underwater mine?
In our world, the transponder was invented sometime in the 1950s, so it is not hard to imagine it coming earlier in your accelerated-development-due-to-extended-war scenario. Likewise, the Gertrude u …
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8
votes
What earth conditions would make a permanent bronze-colored sky?
Turns out this is happening- right now, on this planet, in reality.
All you need is some smog. This photo from Beijing last year looks rather bronze-ish to orange-ish I think.
(image source: Inter …
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3
votes
Great Flying Cthulhu
The largest so-far known flying animal on this here earth was the quetzalcoatlus. At 10 meters, its wingspan falls far short of 1000 feet you mention.
(image from wikimedia)
However, the mechanic …
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22
votes
How to realistically explain a creature that eats dreams and nightmares?
Plants contain chlorophyll, which absorbs electromagnetic energy in the range 400-800nm, which happens to coincide with light tossed toward earth by the sun. Quite convenient. The plant uses this to …
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24
votes
Accepted
What is plausible biology of ocean-dwelling, tool-using, intelligent creatures?
As far as we are currently aware, the most intelligent things in the oceans are the cetaceans (dolphins and whales) and the pinnipeds (seals, walrus, sea lions). Further, it is more tempting to want …
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6
votes
What would the sky look like in the SHADOW of planetary rings?
I think the result will be very similar to what happens here on this Earth during a solar eclipse. I like this quote from http://www.eclipse2017.org/2017/what_you_see.htm:
You'll get the shrinkin …
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1
vote
Could planets be at relative rest with respect to each other (in a game universe)?
You need to take advantage of Lagrangian Points.
Whenever one massive body orbits another, there are five points surrounding them where other massive bodies will be in equilibrium, in terms of gravit …
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6
votes
Humans with a scorpion-like tail?
Let's take inspiration from the claws of mantis shrimp. Their club- or spear-like claws are deployed by flexing and releasing bands of chitin. In the same way, your creature's tail would need such a …
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2
votes
Can a small island realistically have all these environments?
Welcome to the "Big Island" of Hawaii
Using your own list:
A Forest: the island is dominated by Tropical Rainforest
A lake: Lake Waiau
A snowy mountaintop: Mauna Kea
A desert: Ka'u
A bustling mod …
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