Showing posts with label lasers. Show all posts
Showing posts with label lasers. Show all posts

Tuesday, November 16, 2010

Impact of the LASER

First thing's first, for those who may not know, the word 'laser' is actually an acronym standing for Light Amplification by Stimulated Emission of Radiation. For the purposes of this class, I won't delve deep into the physics of it, but rather list a few of the impact this discovery has had on our modern society.

The first concept of a laser wasn't thought up for recreational, medical, or even for simple lighting principles. Physicist Charles Towne was an expert in spectroscopy, or as dictionary.com puts it, "the science that deals with the use of the spectroscope and with spectrum analysis". (If you're like me that didn't help clear it up at all, basically it's the study of radiation, visible or not, and its sources). Nowadays our uses for lasers vary from making slits in baby bottles to measuring the distance between the earth and moon. Here are some other neat (obvious and not-so-obvious) uses for lasers you may or may not have known about.