Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [invisibility]

For questions on living beings and objects that cannot be seen.

-2
votes
5answers
474 views

How can an invisible person make their clothing invisible too? [closed]

[This question is based purely on curiosity. Unexplained versions of this kind of thing happen in films/books/etc., and I’d like to know if it’s at all plausible, or whether handwaving is the only ...
2
votes
2answers
195 views

What's the plausibility of making a body part invisible?

I have a humanoid character with wings, made possible by a little fictional magic, but I'm trying to keep it as scientifically correct as I can. All right, so she has wings, but walking through busy ...
33
votes
21answers
10k views

How to prevent invisible people from committing crimes?

The year is 2020, 98% of the world population are normal people with normal skills, two percent (2%) are people who have the ability to become invisible at will. The majority of the invisible people ...
0
votes
3answers
237 views

Changing the emission spectrum of the human body

Let's say I'm a superhero or a magic space-wizard with the ability to change the color of any object I touch i.e. change what wavelengths of light it emits. If I want to become invisible, I could then ...
23
votes
2answers
6k views

Would Vantablack hide planes from radar?

Vantablack is very dark, absorbing 99.965% of light. I've also heard it absorbs waves beyond the visible spectrum. Does this mean planes painted with Vantablack would be invisible to radar? If yes, ...
28
votes
7answers
3k views

What does a person in a light-bending invisibility cloak look like from behind?

So, yesterday I found an invisibility cloak in my attic. It's got an instruction manual with it, and there it was mentioned that it is truly an invisibility cloak: it bends the light (actually, all ...
1
vote
6answers
354 views

Why can't you attack while invisible? [closed]

In many sci-fi/fantasy settings, there are cloaking devices and invisibility spells that render the user invisible. However, they usually have the limitation, frequently for game-balancing purposes, ...
3
votes
2answers
243 views

What would a orbital station and activity look like from the ground?

The Setup: We have a highly advanced orbital station. It is designed to be rather stealthy, like a observation post. Is it possible to make it completely invisible to the naked eye, even when in low-...
4
votes
7answers
1k views

How can we catch an invisible man?

Some Background The government is really, really good at catching people as we learned here and here. But as logic would dictate, there is always someone better. In this case, an invisible man. ...
6
votes
7answers
528 views

Is it scientifically possible to make a robot invisible to the naked eye?

Under currently known science, is it possible to make a robot of which every part was either made of a clear, non-reflective material (such as bulletproof glass, or plastic), or too small or thin to ...
8
votes
4answers
1k views

What would the culture and traditions of “invisible” people look like?

Imagine a group of people with an "invisibility" power that make them unnoticed and immediately forgotten by everyone. This power would be a mix of the witches spell in "His Dark Materials" and the ...
3
votes
3answers
199 views

Evolution of a naturally invisible prey

I'd like to tip my hat to this week's fortnightly challenge with this question by revisiting an old one. I asked a question about the Science behind a naturally invisible creature a while ago. At the ...
3
votes
2answers
298 views

Evolution of a naturally invisible predator

I'd like to tip my hat to this week's fortnightly challenge with this question by revisiting an old one. I asked a question about the Science behind a naturally invisible creature a while ago. At the ...
130
votes
16answers
11k views

A Most Subtle Magic

Rynn is not flashy at all. In fact, you would be forgiven to think she's a bit of an introvert. Sure, the people in the town are strangely reluctant to talk to you about her, but you are a newcomer, ...
7
votes
3answers
364 views

How to make an invisible planet from its stratosphere up?

Is there a way to make a planet invisible naturaly? I dont want the entire thing to be clear, but have a natural "field" or something that prevents the planet from being seen (or makes it much harder) ...
6
votes
3answers
311 views

What technologies could allow for individual scale invisibility and what are their caveats?

In a science-based futuristic world, individuals (soldiers) are able to become invisible to the human eye while keeping a decent amount of agility. What could be the different possible technologies ...
27
votes
6answers
2k views

Are invisible creatures theoretically possible?

Would it be possible for a corporeal alien with a solid physical body (it must be able to touch and interact with the world) to exist but remain invisible to humans? My understanding of optics is ...