Flashlight Observations

I was really curious about whether or not moisture had an effect on whether a beam was visible or not. I got a pot of water boiling and shined my flashlight through the steam. Here's a video:

Untitled from bfrank on Vimeo.

In the video, I'm noticing how right off the flashlight you can't see a beam, but over the pot you can. It's also interesting to me that the beam doesn't appear to go all the way through the steam–it seems to end about half way over the pot.

Are you guys noticing the same things? Anything else I'm missing?