does air reflect better when there isn't humidity?

[noone]

1-does air reflect better when there isn't humidity?

2-Some organism can see smaller waves of light then us... can i now which organism can do it?

3-how does projector works?

 

 

 

thank you

[swansont]

1-does air reflect better when there isn't humidity?

 

Reflectivity depends on the index of refraction, so it depends on what happens to the index as humidity varies.

[John Cuthber]

Air doesn't normally reflect light.

noone, perhaps you could explain what you mean.

 

Also, it's easier if you ask one question in each thread.

[noone]

Reflectivity depends on the index of refraction, so it depends on what happens to the index as humidity varies.

 

So...the light will reflect or not?

Air doesn't normally reflect light.

noone, perhaps you could explain what you mean.

 

Also, it's easier if you ask one question in each thread.

 

I just wanna find a way to reflect in the air and i m traino to get more information possibile about it

[John Cuthber]

Why do you think air reflects light?

[noone]

Why do you think air reflects light?

Air reflect light but we just can t see the reflection....

[Strange]

Air reflect light but we just can t see the reflection....

 

That is a strange definition of reflection. Why can't we see it?

[swansont]

If you had two layers of air with different densities (perhaps owing to a temperare difference) younwould get reflection. A tiny, tiny amount, at the interface. Refraction is much more common, since that doesn't require a sharp change in index.

[noone]

 

That is a strange definition of reflection. Why can't we see it?

beacause the waves of the light are too smaller to be seen by human eyes.

If you had two layers of air with different densities (perhaps owing to a temperare difference) younwould get reflection. A tiny, tiny amount, at the interface. Refraction is much more common, since that doesn't require a sharp change in index.

so the humidity isn't a matter?

[Strange]

beacause the waves of the light are too smaller to be seen by human eyes.

 

What do you mean by "too small"? Wavelength? That would not be changed by reflection.

2-Some organism can see smaller waves of light then us... can i now which organism can do it?

 

This is more of a biology question.

 

"for animals ranging from bees to reindeer, ultraviolet lights up their vision"

http://www.theatlantic.com/technology/archive/2011/08/6-animals-that-can-see-or-glow-in-ultraviolet-light/243634/

 

 

3-how does projector works?

 

I think that needs a separate thread.

http://www.explainthatstuff.com/projectiontv.html

Edited October 29, 2015 by Strange

[swansont]

so the humidity isn't a matter?

It does matter, but it would be a small change in an already small effect

[noone]

I m very confused.

I have read some were that the reflection depends on wave of the light and the size of the particles...

I'm sorry if I didn't written it right because I'm from Italy.