Lasers

How Lasers Work https://www.youtube.com/watch?time_continue=3&v=y3SBSbsdiYg

Most Powerful Lasers https://www.youtube.com/watch?v=hcGgaa2mFc4

Research lasers and their use. http://breakingdefense.com/2014/05/the-limits-of-lasers-missile-defense-at-speed-of-light/