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Thread: Lasers more powerful than the sun!

  1. #11
    Join Date
    Aug 2008
    Location
    Seattle
    Posts
    220

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    Quote Originally Posted by SaltyRobot View Post
    Good thing the sun isn't as powerful as the M140 otherwise we all would be dead. Man you can really spin anything into news.

    It latest news sprinkling dust around your house will keep tigers away.
    In the case of a 445 diode:

    Total solar luminosity (3.846×10*26 W) divided by the surface area of the sun (6.0877×10*12 square km) yields 6330 W/square cm (calculated using WolphramAlpha).

    Laser diode luminosity (1 W) divided by diode emitter surface area (50 μm) yields 2,000,000 W/square cm.

  2. #12
    Join Date
    Jun 2012
    Posts
    73

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    Okay, so a laser outputs more power per cm^2 than the sun.

    This does not mean your handheld laser is more powerful than
    the sun. The entire side of the Earth facing the sun receives..
    what.. something like 0.000005% of the sun's total output?

    So.. 1 watt vs. 3,800,000,000,000,000,000,000,000,000 watts.
    My money is on the sun.. just sayin'..

    - L

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