What Happens if You Focus a 5W Laser With a Giant Magnifying Glass? Negative Kelvin Temperature!

Get your Action Lab Box Now! https://www.theactionlab.com/ Source on negative Kelvin:https://www.quantum-munich.de/media/negative-absolute-temperature-what-is-it/ 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. Follow me on Twitter: https://twitter.com/theactionlabman Facebook: https://www.facebook.com/theactionlabrat My Other Channel: https://www.youtube.com/channel/UCA19mAJURyYHbJzhfpqhpCA For more awesome videos checkout: Darker Than Vantablack—Absorbs 99.9923% of Light https://youtu.be/JoLEIiza9Bc Amazing experiment actually makes black fire https://youtu.be/5ZNNDA2WUSU Crushing My Own Hand In a Hydraulic Press—Crazy Experiment on My Brain https://youtu.be/AgN-YTdPl3s What Does a 4D Ball Look Like in Real Life? Amazing Experiment Shows Spherical Version of Tesseract https://www.youtube.com/watch?v=_4ruHJFsb4g How I Made an Ant Think It Was Dead—The Zombie Ant Experiment https://www.youtube.com/watch?v=ZPw9dSV6y2c What Happens if You Open a Vacuum Chamber Under Water? And Do Vacuums Float? https://www.youtube.com/watch?v=VugR1WdAOQw Can Light be Black? Mind-Blowing Dark Light Experiments! https://www.youtube.com/watch?v=p-OCfiglZRQ Mirror-Polished Japanese Foil Ball Challenge Crushed in a Hydraulic Press-What's Inside? https://www.youtube.com/watch?v=oJ2faqXlU1s Mixing the World's Blackest Paint With the World's Brightest Paint (Black 2.0 vs LIT) https://youtu.be/x5L4_GXePuk Is it Possible to Unboil an Egg? The Amazing Uncooking Experiment! https://youtu.be/QNV4gHWZ9p4 What if You Try To Lift a Negative Mass? Mind-Blowing Physical Impossibility! https://www.youtube.com/watch?v=uAJlg8MDAlU What Does a Giant Monster Neodymium Magnet do to a Mouse? https://www.youtube.com/watch?v=V8-JfSXPDp0 The Worlds Blackest Black vs The Worlds Brightest Flashlight (32,000 lumen)—Which Will Win? https://www.youtube.com/watch?v=AaFdCvnV8PM How Much Weight Can a Fly Actually Lift? Experiment—I Lassoed a Fly! https://www.youtube.com/watch?v=-xZoOUd172Q DISCLAIMER: Any experiment you try is at your own risk