Questions tagged [vision]

For questions about the ability to see or a similar sense.

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6
votes
3answers
202 views

Extending the visual spectrum — how far is possible and what would be the benefit?

Earth has animals that have a photoreceptor in the near UV that obviously provides them some sort of benefit. (Given how biological material often glows under UV this might be of hunting benefit.) ...
4
votes
1answer
149 views

Will owls become extinct without airglow?

Given a planet in most ways very similar to Earth (gravity, daylight, atmosphere etc.) with a full transplanted biosphere (all the familiar plants and animals), where the main difference is that as a ...
-4
votes
1answer
57 views

How far can pixie see unaided?

Flash news: A mysterious creature very much resembles a pixie was killed in a freak accident involving a sparrow, authority suspects no foul play since interviews with the local mythology creatures ...
7
votes
6answers
801 views

Television without primary colors

As humans, we're incredibly lucky that we only see in three primary colors. It makes the development of color displays quite easy. We only need to squeeze three subpixels into a single pixel! What if, ...
2
votes
0answers
55 views

How could creatures evole without night vision in a dayless world? [closed]

Basically, I want creatures that are as human-like as possible to have evolved on a dayless planet. Nevermind how there could even be lfe, I aready have that covered. I want them to have as close to ...
4
votes
8answers
266 views

What would absolute nothingness look like?

In my world, I have these things called 'voids', for lack of a better name. These voids are absolute nothingness. What I'm having trouble with is what they'd look like from the outside. No light = ...
7
votes
3answers
193 views

Scaling up compound eyes, is there a size limit?

I'm designing an alien creature that looks insectoid and had a question about compound eyes. The creature is about human in size, maybe a little larger, but I'm wondering if there is a size limit on ...
3
votes
2answers
456 views

Can mutated cyclop with 2 conjoined pupils perceive depth?

Imagine a humanoid creature with only 1 eyeball the size of a tennis ball, it has a rare genetic mutation so it had 2 conjoined pupils! I suspect since the 2 pupils are just side by side it would not ...
4
votes
2answers
176 views

How can I cool the body of a human such that it can see Long wavelength IR light without its eyes glowing

The protagonist in my world has its eyes and subsequently its brain altered (genetic alterations from conception) in such a way as to allow it to see into the UV and IR range via the addition of new ...
4
votes
2answers
79 views

Evil moon: Part 1 - The explanation

Man in the Moon As humans we have a built-in tendency to see faces in random patterns. On Earth we have a "man-in-the-moon" Image by Luc Viatour. - Original by Luc Viatour, edited by The ...
5
votes
2answers
344 views

What does a timeflow-doubled superhero see?

I was just bitten by a radioactive stopwatch, gaining the voluntary ability to experience time at twice the usual rate. While doing so, for every second of real time, two seconds occur within my body. ...
7
votes
2answers
538 views

Vampire vision comparable or superior to human vision at night

I'm writing a story about the supernatural, except with as few "explained by magic" elements as possible. In the case of vampires, I want them to look as similar to humans as possible while being able ...
6
votes
1answer
133 views

What can merfolk use to see in the abyss?

A particular species of merfolk inhabit the abyss of the pacific ocean, they belonged to the secret clan which was tasked by the Atlantean emperor to seek immortality elixir. The emperor ordered their ...
12
votes
1answer
2k views

How does a creature evolve to become invisible to night vision goggles?

I am wondering if a species might evolve to deceive human technology - in particular, a set of night vision goggles. I imagine it is either cold blooded or it has thick fur - which doesn't trap air - ...
3
votes
3answers
217 views

Feasibility of non lethal “x-ray” false-colour vision?

One of the powerful abilities of Superman is his ability to make several layers of opaque solid objects translucent to him and only him alone. What plausible future technology would allow us to see ...
10
votes
8answers
835 views

What is the scientific basis for yellow, bioluminescent eyes?

I've seen many concept arts of aliens that have some sort of glowing bioluminescent pupil-less eyes. I'm inventing a creature that has yellow glowing eyes like that and can see in the dark. My ...
5
votes
2answers
104 views

Could a dichromatic animal distinguish red and green but not blue?

If a dichromatic mammal had better night vision than a human, including tapetum lucidum, could they see large (red) and medium (green) light wavelengths but not small (blue)? Would something similar ...
6
votes
3answers
203 views

Could a dichromatic animal see red?

So I'm not really sure whether I get it right or not, but apparently most mammals are dichromatic. Humans have three cones that detect light wavelengths, small for blue, medium for green, and large ...
27
votes
5answers
4k views

A fast aquatic predator with multiple eyes and pupils. Would these eyes be possible?

I’m currently in the works of an alien design, one which lives in the ocean most of its life and occasionally surfaces in shallow waters to mate. It has 4 eyes, with each side of the head having a ...
6
votes
4answers
363 views

Cool way to see through fog and darkness

My planet is frequently set with thick fog. What is the best way to have its residents see accurately? One species called Hell Fires fall from the sky, landing on top of prey and killing it. How ...
7
votes
5answers
277 views

Why would a blind creature evolve display features?

I'm thinking of a predatory creature that lives deep inside large caves. Because this environment is so dark, the creature's eyes have disappeared through evolution since the creature relies on ...
11
votes
7answers
3k views

How to evolve human-like eyes that can stare at the sun without protection?

Imagine a species that is very much like humans in shape, size and physiology. But they are able to stare at the sun for long periods without suffering any harm, and without needing any artificial ...
9
votes
3answers
502 views

How large would a circular wall need to be to appear straight?

How large (in terms of height and radius) would an outdoor circular wall (like a city wall on a colossal scale) need to be before a casual observer would perceive the wall as "straight"? I found "...
43
votes
19answers
8k views

How to get cool night-vision without lame drawbacks?

In this scenario, I would like to focus specifically on humanoids (read: human shaped blinking eyes, protected by eye-lashes and evolved in a waterless environment and fitting human eyesockets, from ...
31
votes
10answers
6k views

Non-aqueous eyes?

I am trying to create an organism that can survive in space for short periods, but I realized that I can't have its eyes be similar to those of most animals and humans because they would boil in space....
1
vote
5answers
554 views

Could a camera on a sniper rifle see the kill? [closed]

We are in the a slightly gritty future. There is space travel, but technology is reasonable. People still shoot bullets and not lasers. Vehicles are powered by nuclear reactors and not magic space ...
35
votes
12answers
7k views

What does the view outside my ship traveling at light speed look like?

World Rules: Travelers are able to move at the speed of light without disruption of their lives. Time passes "normally" for them. They think, breathe, love, cry, and steer the ship as if they were ...
6
votes
3answers
509 views

What would a car look like for an animal with eyes on the side of their heads?

Imagine an animal like a cow in regards to eye positioning; they can look forward to lessen their frontal blindspot a bit but assume that doing that for a prolonged amount of time is straining. What ...
8
votes
3answers
872 views

Would color changing eyes affect vision?

I am writing a medieval fantasy story in which there is a race of humanoids who have multicolored eyes. Their eyes may change to bring out one color or another if they are experiencing very stressful/...
41
votes
23answers
9k views

What would be the ideal power source for a cybernetic eye?

After nearly a decade of development and public prototypes, the Mizaru company is ready to unveil the cybereye. A fully cybernetic eye that provides its user/host with high definition vision, enhanced ...
19
votes
14answers
3k views

Would an alien lifeform be able to achieve space travel if lacking in vision?

Think of this alien life form as something resembling earth bats, placed in a planet with Earth-like conditions. Micro-bats have small and poorly developed eyes. Similarly, this alien species is ...
7
votes
4answers
994 views

How fast would a person need to move to trick the eye?

Say superheroes in a certain world have somewhat less overpowered abilities. A strong super might be able to lift a few tons, but not stop speeding trains or pick up an entire semi. Unlike the Flash, ...
8
votes
6answers
3k views

How to limit sight distance to 1 km

My country is on the coast and spans deep into the continent. The technology level is before the invention of explosives. 10 years ago with naked eyes, anyone could see further than 10 kilometers away ...
7
votes
5answers
426 views

Describing what the world looks like in UV and IR [closed]

In my world I have introduced two super powers, and both can be accidentally acquired by an otherwise normal human: one is to see infrared and the other is to see ultraviolet. I am aiming to have that ...
9
votes
5answers
1k views

Is a sling a viable ranged weapon option for someone with poor eyesight?

I have a character who is, for lack of a better term, a Monster Hunter. She's physically fit, has a pretty high pain tolerance/is generally pretty durable, and is skilled in various forms of hand-to-...
4
votes
2answers
219 views

Victorian optical sensors?

In my fictional world I would like to have something similar to modern optical sensors for things such as aiming systems, night-vision goggles and automaton vision. The main problem I face is ...
-2
votes
1answer
151 views

Seeing only in IR: Is my hypothesis correct? [closed]

I watched Kyle's Because Science video on The Predator and 1 thing he talked about was IR vision. Here was his argument: If you can see nothing but infrared light, you can only see the ambient ...
7
votes
4answers
485 views

How is infra-vision any good?

Supposing a world like the Underdark, full of civilizations that developed and live their lives completely away from the light of the sun. In the typical D&D type setting, these creatures have ...
5
votes
2answers
405 views

How far can a human see?

I'm asking this question as a reference for use in worldbuilding when developing world size, atmospheric content, or alien optometric abilities (aka, vision). While I'm specifically asking two ...
8
votes
3answers
2k views

Realistic darkvision?

This question is similar to "How would the human eye need to change in order to see in low light without any changes to physical appearance?", including the apsect of change to the human eye, only the ...
26
votes
8answers
6k views

My protagonist can see UV light. What will she be able to see that others can't?

So in my world interdimensional travel produces UV light. However, there are obviously other things which produce UV light/reflect it and look different. Being a non-physics person, can someone ...
9
votes
5answers
531 views

How would eyes that evolved in air differ from our own?

In one of the documentaries he's featured in, Neil deGrasse Tyson talked about the evolution of the eye. https://www.youtube.com/watch?v=4SXHMm5I-68 The part that's always intrigued me is this: ...
6
votes
2answers
197 views

Vision on Titan/Early Earth and the technicalities of a creature seeing in near infrared

I am trying to develop an alien species that could live on Titan and at first I supposed it would be easy with the species being able to use yellow, red and near-infrared wavelengths of light to see. ...
0
votes
4answers
356 views

Proud warrior race with terrible depth perception. How do they look?

I was working on a science fiction story with a variety of alien species. Most of them seemed entertaining and plausible enough, but I got stuck on one particular species that I could use some help on....
1
vote
2answers
219 views

What 3 wavelengths of IR light would be ideal for “Predator Vision”?

Alright, so I'm working on a setting with dwarves in it. I've been thinking that, to make things more interesting, certain clans would have the cone cells in their eyes see infrared light instead of ...
-3
votes
1answer
129 views

Advanced Alien Coloring [closed]

The Mantis Shrimp is a crustacean known for two things: its punch its eyes For this question I will focus on the latter. A theory about the effects of their super vision is that it causes their ...
12
votes
4answers
4k views

How do vampires react to passive UV light sources?

Certain fantasy creatures are extremely sensitive to concentrated UV light. eg modern vampires. They either slowly or rapidly burn up in-front of you when exposed to direct sunlight or modern high ...
6
votes
3answers
412 views

Super Vision In the Dark

I have made this planet for my creatures and it is constantly dark, night or day. No it's not a rogue planet, it's dark because of the 1,000 feet tall autotrophs that suck up all the sunlight and ...
2
votes
1answer
202 views

Dragonfly Goggles

Ahh insects, such fascinating creatures with fascinating traits, but sadly as I have found out most are only available to them and not us thanks to the square cubed law. Maybe the following traits, ...
-1
votes
1answer
150 views

Calculating The Albedo of a Gas Giant With Earth-Like Moon(s) [closed]

How can you determine how bright a gas giant would be, especially if it has inhabited moons with an Earth-like atmosphere?