- #1
pallidin
- 2,209
- 2
Greetings,
I have a question. Why does light spread?
That is, if I have a laser beam transmitted over distance, the light "cone" seems to get larger. Is this a function of laser optics or poor design? Or is there something about light which tends to "push away" from nearby photons in the stream?
I have a question. Why does light spread?
That is, if I have a laser beam transmitted over distance, the light "cone" seems to get larger. Is this a function of laser optics or poor design? Or is there something about light which tends to "push away" from nearby photons in the stream?