ELI5 Lasers - why don’t you see many white laser pointers?

ELI5 Explain Like I'm 5: Bite sized answers to stuff you should know about - in a mini podcast

Do laser beams get wider over a distance? Why are most lasers red and not white in color? What’s the difference between a powerful flashlight and a white laser? Did Albert Einstein invent the laser?

... we explain like I'm five

Thank you to the r/explainlikeimfive community and in particular the following users whose questions and comments formed the basis of this discussion: titaniumdragon, skoncol17, syloh, gibson45 and e_snap

To the ELI5 community that has supported us so far, thanks for all your feedback and comments. Join us on Twitter:

https://www.twitter.com/eli5ThePodcast/

or send us an e-mail:

[e-mail]