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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.

7 votes
1 answer
2k views

What do we get if we eat the moon?

Imagine we have a machine that can consume celestial bodies, breaking them down into component elements and storing them in big bins somewhere. If we fed that machine a moon, what would wind up in tho …
Danny Reagan's user avatar
  • 6,066
37 votes
17 answers
14k views

Deadly, Heavier than Air Gas

In a given fantasy world, I need a deadly (yet not magical) gas that will naturally pool in low depressions and valleys. The level of magic is not high, so I'd like it to be an actual chemical that a …
Danny Reagan's user avatar
  • 6,066
9 votes
5 answers
2k views

What can be used to make the world's deadliest bullet?

In a hypothetical near-future setting, humanity has been subjugated by an upper class of cyborgs. A melding of man and machine, they rule the world with an iron fist. The resistance has one chance to …
Danny Reagan's user avatar
  • 6,066
2 votes

Classification system and measure of progress for science and technology branches and other ...

Think of it like a government would think of it. For instance, a government might budget money at a high level towards these categories of things: Energy (solar, nuclear, fusion, etc) Agriculture …
Danny Reagan's user avatar
  • 6,066
5 votes
3 answers
270 views

Bailing out of a train

A group of robbers in the Old West (of America) are planning a daring heist. They intend to rob a newly commissioned train on its maiden trip across the country. This train will have an upper-class cr …
Danny Reagan's user avatar
  • 6,066
32 votes
13 answers
23k views

Plausible plasma weapons?

In a lot of science fiction, the advanced weaponry takes the form of guns firing directed bursts of plasma. These searing bolts of fire are classic ways to create weapons apparently rooted in science, …
Danny Reagan's user avatar
  • 6,066
2 votes

How could you dig a hole through the fluid mantle of a planet?

I fear that conventional science may fail you here. It is not technically possible, for instance, to actually "drill" through a liquid, for instance. (To say nothing of the incredible heat and pressur …
Danny Reagan's user avatar
  • 6,066
11 votes

Tactical influences of an entirely electricity-based arsenal on starships?

The US Army has dabbled in this field recently, producing a prototype of something called a Laser Induced Plasma Channel (LIPC). Unfortunately, this weapon, like any weapon that relies on electrical a …
Danny Reagan's user avatar
  • 6,066