Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
?
I am a physics professor, the major field is optics. I like laser mostly.
Have you ever do experiment with laser?
I am interested in laser products and enjoy their colorful beams. I just bought a 20mW 532nm green laser pointer from http://www.highlasers.com./ It works well. with pure and bright green light. I just use it to burn paper, and match, the Highlssers sent me a box of match together with laser pointer.
My dog is crazy about the green spot, I wondered wether it is safe to play 20mW laser pointer with pets? And I also want to do some other experiments by laser pointer, do you have any suggestion? By the way, Highlasers.com is really a good online shop, with high quality, although with a slowly shipping spead, it's worth.
3 AnswersEngineering8 years ago