What Happens if You Focus a 5W Laser With a Giant Magnifying Glass? Negative Kelvin Temperature! | Wonderdir
Wonderdir | #Facebookdown | Facebook, Inc. is an American online social media and social networking service company based in Menlo Park, California. Its website was launched on February 4, 2004, by Mark Zuckerberg, along with fellow Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes. Wikipedia
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Founded: February 2004, Cambridge, Massachusetts, United States
Headquarters: Menlo Park, California, United States
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Founders: Mark Zuckerberg, Eduardo Saverin, Dustin Moskovitz, Andrew McCollum, Chris Hughes
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In this video I show you what it means to have negative temperature by focusing a laser beam down to a single point. I show you what happens if you try to focus a light down to a single point, then I show you how a laser is different due to population inversion.
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