Lasers are used everywhere from the dentist's office to science fiction films. But how do they work? Why are laser pointers so different from a regular flashlight? Everyday Einstein beams up. Read the transcript here: http://bit.ly/1HJ5rYi
Lasers are used everywhere from the dentist's office to science fiction films. But how do they work? Why are laser pointers so different from a regular flashlight? Everyday Einstein beams up. Read the transcript here: http://bit.ly/1HJ5rYi