Questions tagged [reality-check]

Asks if a given concept is realistic in a given context. Answers should say yes or no, with supporting info. Compare this with the science-based and hard-science tags. This tag should never be the only tag on a question, because this tag frames how a question should be answered, not the topic.

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2answers
148 views

Anatomically Correct Behemoth

This is a submission for the Anatomically Correct Series roaming vast deserts some characteristics of my Behemoths include: being slightly larger than Paraceratherium having longer forelimbs than ...
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2answers
73 views

How might a group of hominids keep an accurate record of their history?

In my story Halflings and Goblins have a somewhat accurate knowledge of their history, despite being spread over multiple continents. Now for the longest time humans weren't that good at keeping ...
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1answer
124 views

Design for a working Vibroblade

So, a common sword found in sci-fi (other than lightsabers) are the Vibroblades, swords that vibrate to increase the ease of cutting into other materials. With such a blade, one needs less effort to ...
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4answers
208 views

Feasibility of a virus that causes its host to crave sex?

In the near future a man-made virus was released which caused a world wide epidemic in humans and animals , the virus completly shutsdown all cognitive functions in the brain leaving the host in a ...
4
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2answers
122 views

How do I preserve my Wendigo Prion?

Wendigo fever is a Prion (credit goes to SE is too politically correct for the idea) which is spread by the consumption of tainted meat. the main problem I have is to my knowledge Prions are solely ...
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4answers
1k views

Can a crystal grow or propagate faster than 'c'?

We have, perhaps, all experienced those 'heat' packs wherein a local disturbance causes a crystal structure to rapidly dissipate through the medium, releasing heat in the process. Nothing really '...
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15answers
7k views

What would be the consequence of a traffic light system where the users with green light pay the users with red light?

Traffic lights are mechanisms that control the usage of intersections. I'd like to perform a thought experiment for an alternative mechanism. The basic idea is that the intersection is a shared ...
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7answers
1k views

Transhumans that replace eating with breathing

We are in a far future setting where humans (or transhumans I should say) achieved two things: be able to modify themselves genetically to the point where they can have completely different organs to ...
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1answer
101 views

Building Island in Pacific Ocean by pouring continuous lava

I'm thinking to build an island by pouring lava into the ocean, with the advanced technology, around 40 years later, by making a special pipe connected to the ground (maybe near volcano/es) since the ...
3
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1answer
115 views

Could a Greater Relative Abundance of Tin Extend a Bronze Age?

Bronze is an alloy of copper and tin, and copper is a significantly more abundant metal in the Earth’s Crust, at about 70 PPM compared to tin at 2 PPM. Because tin was the limiting factor in bronze ...
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1answer
110 views

Anatomically Correct Kitsune [duplicate]

This is a submission for the Anatomically Correct Series Residing in Japan, the Kitsune is commonly depicted as: looking like a fox having an unusually long lifespan for a fox have up to nine tails ...
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1answer
108 views

What could be a plausible scientific explanation for a man who has skin made from rock and can manipulate the molecular structure of natural minerals?

Okay, so I want you to think of someone similar to Clayface here, only he's not limited to just clay. What I got for him so far is that he was once an ordinary man until a cluster of specifically-...
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2answers
121 views

Anatomically Correct Grootslang

This is a submission for the Anatomically Correct Series Residing in South Africa, the Grootslang is a creature of African folklore being depicted commonly as: Being 37 to 40 ft long having a cobra ...
5
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2answers
99 views

Anatomically Correct Kelpie

This is a submission for the Anatomically Correct Series Residing in Scotland, the Kelpie is a creature of Celtic folklore being depicted as: looking like a black horse residing in lakes and pools ...
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2answers
133 views

Global warming through waste heat?

Let's assume a world where humanity managed to stabilize the climate again and maybe even reversed the effects of the current climate change. (So that we can ignore the current global warming in this ...
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1answer
94 views

Would sedation treat a seizure?

Medical-related question for my science-fiction story. My character is in a facility with modern BUT limited medical supplies. This character is suffering from seizures due to withdrawal from a ...
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4answers
131 views

distances between communities/cultures in fantasy world, approximate to 12th - 13th century

So - in my book, I have a healthy young 20-something character travel for 5 days between his woodland home and the nearest big city, by foot. It is set in a fantasy world approximate to Britain ...
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7answers
6k views

Could an army armed with only spear-like weapons be effective?

The superiority of pole arms and spears in particular has become a pretty common meme across multiple online communities, so that got me thinking; what if you had a fighting force in which the only ...
3
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1answer
80 views

How fast would a gas giant, or very close moon, need to orbit to maintain distance?

I have noticed that there is a common theme in science fiction art to depict one or more very large planetary bodies in very close proximity to the surface of the other world being depicted. (you can ...
2
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2answers
154 views

Can you make cheap steel without steam engines?

Could some method of producing cheap steel in bulk (like Bessemer) have been developed before steam engines? The Safehold series in which there is a religious prohibition on heat engines & ...
3
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4answers
274 views

What reasons are there for using an interstellar ship that can only carry 8 people to settle another planet? [closed]

In my story a civilization has reached the point where they want to colonize another planet. They encounter a problem. Their spaceship can only carry a crew of eight (8) people. Specifics of the ...
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5answers
233 views

How to make powered armor viable as a substitute for guns?

I'm thinking about the idea of powered armor replacing guns. What would allow this to be possible? The obvious problem is that it is vastly easier to build slightly more powerful weapons than it is ...
4
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3answers
219 views

Where could Elves build a self sufficient stronghold?

Elves now a days are mostly peaceful but they weren't always. a long time ago their was a mighty Elven empire being the first to smelt steel while the other races were still using bronze armor and ...
2
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2answers
123 views

Will be electronics production in zero or low gravity possible and how soon?

On the Earth's surface, we look back to an ultimately high tech evolution of computer hardware and according integrated circuit manufacturing appliances. The knowledge required to build robust modern ...
2
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1answer
444 views

How might a Dark Lord quickly overhaul a civilization?

Orcs, or more specifically the Black Orcs were originally semi-nomadic, kind of like a mix between some Celtic city states and the Mongols. Now in a relatively short time the "Dark Lord" has conquered ...
2
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1answer
55 views

How might a sea wyvern adapt its flame breath?

Sea Wyverns (name not final) nest on small, rocky islands scattered throughout the sea and primarily catch fish going somewhat below the water. Basically, wyverns ingest a piezoelectric crystal which ...
3
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1answer
74 views

How might someone live for thousands of years?

A long time ago during the last ice age an early hunter gather human encounter an unknown entity (likely a alien) who granted him the power of immortality with him living at least up into the middle ...
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12answers
1k views

Why would humans be the dominant species?

Humans, in most fantasy stories including in my own, are the dominant species. Why is that? Firstly, I guess I should give every race in my story strengths and weaknesses. Humans (same as us) have ...
0
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1answer
105 views

Anatomically Correct Ninki Nanka

This is a submission for the Anatomically Correct Series the Ninki Nanka is a mythical creature residing in West Africa which is commonly characterized as: being around 30 ft long having a long neck ...
3
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1answer
110 views

How feasible is a mobile city that sails across a salt flat?

Imagine a huge salt flat like Bonneville or Salar de Uyuni. Due to other logistical concerns, commerce between the economic powers on either side of the flat is forced travel across it. This has ...
3
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1answer
161 views

Anatomically Correct Orang Pendek

This is a submission for the Anatomically Correct Series The orang pendek is a cryptid that reportedly inhabits remote, mountainous forests on the island of Sumatra (likely evolving from orangutans) ...
3
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2answers
105 views

How do I explain the phoenix's “rebirthing” process

Phoenixes are a unique type of wyvern not only due to their colorful feathers (which resemble flames) but also how they reproduce. Phoenixes lay 7 eggs which require a lot of heat to hatch. ...
6
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1answer
117 views

Feasibility of an amoeba sea

Humanity has discovered entire worlds filled with creatures that would question their understanding of biology, but one creature, if it can be called, has brought up many many questions. Appearance ...
4
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1answer
127 views

Creating a plausible Cyclopia disease

Cyclopia syndrome is a disorder which affects both Giants and Yetis in which in afflicted has only one eye. now Cyclops syndrome is a real thing where the embryonic prosencephalon fails to properly ...
4
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2answers
107 views

Feasibility of a tree with a circulatory system

I recently look at a question on this site that questioned if a “world tree” is feasible, Would a 'World Tree' be feasible in real life?. If i remember correctly, it stated that one way to ...
2
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2answers
139 views

Anatomically Correct Dobhar Chú

This is a submission for the Anatomically Correct Series Residing in Ireland, the Dobhar Chú is a creature of Irish folklore being depicted as: being carnivorous resembling an Otter being 7 ft long ...
5
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5answers
933 views

Can an atmosphere be thicker at higher altitudes?

Can a world exist where the atmosphere is actually thicker at some altitude than at sea level? If so, what mechanisms would be involved?
6
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3answers
76 views

Question on Creature Locomotion Ratios

I am considering a mid to large sized creature, the loping quhambo. Maybe eight to ten palms at the whithers and maybe five stone in weight. It is a proboscidean mammal of some sort, though quite ...
2
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2answers
187 views

Anatomically Correct Cockatrice

In short summary A cockatrice is is essentially a a two legged dragon that has the head and body of a rooster, it also has a serpentine like tail and either has feather like wings or webbed like ...
3
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4answers
129 views

Feasibility of making a clone with the same identity

So you decide to clone yourself, obviously the clone is a infant, but other wise looks perfectly identical. However, you start to think of how your new clone could be perfectly like you, in body ...
6
votes
3answers
175 views

What would be the best way to capture a Wyvern?

Wyverns in a lot of ways are living weapons. They're huge (roughly the size of quetzalcoatlus), can fly, can support the weight of ONE unarmored human, and can breathe fire. Given these traits, it's ...
6
votes
2answers
156 views

How to stop horses from going extinct in the new world?

Horse were originally native to north america but between 13,000 and 11,000 years ago they went extinct likely due to expanding glaciers into their territory. The question I propose is how could I ...
4
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2answers
155 views

Is it possible for the body to turn to ash upon death

Say you see a fellow human walking on the street, nothing special, nothing new, but suddenly, BLAM, they're dead. You reasonably run away from the scene out of fear, but when you look back, the body ...
1
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2answers
143 views

Anatomically Correct Gargoyles

This is a submission for the Anatomically Correct Series Gargoyles are a staple of Gothic architecture and I've decided to give these creatures the time of day. Gargoyles are closely related to ...
3
votes
4answers
221 views

What jobs would Goblins be suited for in a medieval setting?

Consider this a sequal to my What jobs would halflings be suited for in a medieval setting? post. While most Goblins live in their own isolated groups a good many of them live in human societies. ...
2
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8answers
469 views

Land power and science fiction militaries

So in reality, navies and air forces really are less effective than armies at projecting power and winning wars. The problem is that people live on land, and so seas and the air are only important as ...
3
votes
3answers
174 views

Anatomically Correct Mothman

This is a submission for the Anatomically Correct Series Residing in west virginia, Mothman is depicted as: Being 7 feet tall Being nocturnal Having red eyes (or at least appearing to) Having wings ...
5
votes
1answer
63 views

Creating a realistic Sea Boar [duplicate]

In medieval art depicts a verity of odd animals one of which are these Sea Boars now it's mostly likely that they were based off whale bones which were misconstrued as boars. but let say that they ...
1
vote
2answers
129 views

What is a feasible timeframe for a super-reactor to obsolete all other energy sources?

A super-reactor was created by SRE, Inc (Super Reactor Energy), and it can provide as much clean energy as needed. There's no way to copy it or make another. It operates without problem or fuel - ...
7
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2answers
154 views

Is popping corn still viable as seed stock? [closed]

In a very near-future (as in, assume no spectacular technological advances or changes to society) post-apocalyptic situation, would a group of survivors scavenging a store after all of the fresh ...

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