lasers

Science

PART 3 How are laser beams produced? Laser beams are the product of stimulated emission of light. But what is stimulated...

Science

PART 2 What do we mean by "highly coherent, usually monochromatic beam of electromagnetic waves"? For the sake of brevity, from now on...

Science

What in the world is laser? PART 1 We use them to point at things in a slide presentation; snipers use them...

Others

one who forms opinions on the basis of reason, independently of tradition, authority, or established belief; one who doubts or denies religious dogma