Interesting article

Maybe some of you have seen it before and I think many of you already know the most things he write about in this article but I still think it deserves to be seen.

Cool Things You Can Do With a Blue Laser: Reflection vs. Fluorescence | Wired Science | Wired.com

I also just discovered something that may be well known but was really cool.
I just put a new battery in a 445 and wanted to try it out.
Had a bunch of papers sitting next to me. (standard 8 x 11 white with black printing.)
Picked up a piece and slipped on my glasses. Everything looked fairly dark.
Several lines on the paper had been highlighted with a fluorescent marker.
Couldn't even see it with glasses on.
Turned on the laser. WOW. The highlighted areas lit up and reflected like they had a flood light on it. Super bright.
Trying to think of a use for this like marking areas to find in the dark or something.

you could draw a ghost on someones front porch with a highlighter, then wait till they come out and shine a unfocused spot (so it covers the whole drawing) onto the picture of a ghost, the picture will light up light crazy and scare the sh*t out of the person.