Science & photography people, I'm trying to reproduce atmospheric light rays

[SamIchi]

I'm trying to reproduce these light rays in my photography. It would be great to understand the science behind it. To be more specific, check out the pictures I've posted here. I'm assuming it has something to do with the water particles in the air, causing light to reflect, but wouldn't know where to start to try to reproduce this.

If any one has any ideas, let me hear it.

Thanks!

 

[Gonzo3333]

Looks like the Tyndall Effect. You will probably need to be somewhere that has fog for a natural effect. To make an artificial effect you will need something that produces smoke or vapor to scatter the light.

http://en.wikipedia.org/wiki/Tyndall_effect