How-To Geek

How Lasers Work [Video]

Lasers are used in everything from disc drives to surgical suites; watch this quite thorough video to see exactly how laser light works.

How a Laser Works [Engineer Guy Video]

Jason Fitzpatrick is warranty-voiding DIYer and all around geek. When he's not documenting mods and hacks he's doing his best to make sure a generation of college students graduate knowing they should put their pants on one leg at a time and go on to greatness, just like Bruce Dickinson. You can follow him on if you'd like.

  • Published 06/6/12

Comments (4)

  1. bobro

    oh… yeah…. thats how i thought it was done…

  2. Qaz

    A+++ thanks! Although not rap, I believe the otherwise-delightful background music nonetheless detracts, however, except at the intro & conclusion of this really superbly-instructive video. For such spell-binding presentations, silence is probably golden to many highly-focused viewers seeking first-view “retention”. (Thank goodness math classes are not deluged with mood music.)

  3. Yakeshinu

    Woo! Now do one on FELs! Those are way more interesting. :)

  4. James

    Lazers are awesome :D

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