Linked Questions

6
votes
3answers
317 views

Is there a layman's way of telling when someone can see into your room? [duplicate]

I understand, at least at a basic level, that the light-difference between inside and outside, determines whether someone walking past my house can see into my room or not. Partially-see-through ...
0
votes
2answers
654 views

What is the mechanism of the semi-transparent glass? [duplicate]

There are some one-way transparent glasses. Light can pass the glass in this way, but cannot in the other way around. It is quite contrary to the experience that the path of light is reversible. ...
2
votes
1answer
41 views

How do “see through mirrors” work? [duplicate]

(I called them see through mirrors because I don't know what their actual name is) I have seen a lot of pictures of glass-like materials which reflect light from on side, and from the other side, ...
0
votes
1answer
39 views

How does a one-sided glass work on atomic level? [duplicate]

What does the description of the phenomenon at atomic level look like? I assume that atoms absorb and emit a wave with a changed amplitude. What is responsible for dividing the amplitude level and ...
-1
votes
1answer
55 views

Light and Visibility [duplicate]

It is difficult to see through a closed glass window from the inside of a well lighted room, when it is dark outside. However it becomes relatively easy to see outside, when the light in the room are ...
1
vote
0answers
38 views

How one-sided black windows work? [duplicate]

I have a main doubt here. I've heard that just a thin layer of coating is sprayed on one side of the glass due to which there are minute gaps between the molecules through which light passes. But the ...
0
votes
0answers
30 views

How to ensure light only flows in one direction? [duplicate]

Consider two light sources A and B. Exclude things like scattering. Without any kind of barrier A can send light to B and vice versa. I'm looking for some kind of material or setup where A can send to ...
27
votes
4answers
7k views

Is one way glass possible?

I am not talking about mirrors, just a plain window made of glass like material. Would it be possible to allow light pass only in one direction but not the other?
5
votes
7answers
17k views

How do I see things of the bright room, being in the dark room?

Visible light emitted or reflected from the objects around us provides information about the world. If I sit in a dark room, and see the bright room outside, I am able to see all the objects of ...
10
votes
1answer
4k views

Why are black mosquito nets so much less visible than white ones?

I have just been installing a couple of mosquito nets for windows in our apartment. The material is polyester, fibers are approximately 0.2mm thick, and the hexagonal "holes" apprixmately 1.5mm in ...
3
votes
1answer
830 views

Can a one-way mirror effect be reversed?

I understand to get the effect of the one-way, one side needs to have light to produce the mirror, leaving the darkened side with the ability to see through. I would like to know if there is a way to ...
0
votes
0answers
89 views

Why are there no true oneway mirrors? [duplicate]

"One way mirrors" are used in interrogation rooms etc. The wikipedia article states that: A true one way mirror does not, and cannot, exist. Light always passes exactly equally in both directions....
0
votes
0answers
37 views

Why does glass/plastic reflect with a dark background [duplicate]

This might be a possible duplicate( I couldn't find a similar question though). While travelling through trains/cars, we often pass through non-luminous patches,as in tunnels or even at night. What ...
0
votes
1answer
30 views

Transmittance through a reversed one-way mirror

I am looking to use a half silvered one-way mirror to allow as much light and solar energy as possible into a room where there are highly reflective surfaces within the room - and I want to keep the ...