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 a warranty-voiding DIYer who spends his days cracking opening cases and wrestling with code so you don't have to. If it can be modded, optimized, repurposed, or torn apart for fun he's interested (and probably already at the workbench taking it apart). 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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