I recently purchased a small LED flashlight/laser pointer.?

I noticed something about the laser pointer that i had not noticed about laser pointers before. When you use it, the dot that it makes has a sparkly visual effect on everything it is on. What is this, and what causes it? Thanks.

Jay2008-11-10T12:04:18Z

Favorite Answer

It's probally interference patterns. Light travels in waves and the crests and troughs can cancel one another out causing patterns like those you describe.

10

Anonymous2008-11-10T11:56:36Z

dust in the air

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