The Device Built to Prove Einstein Wrong

Can atomic clocks prove Einstein wrong? The biggest protection in the game! Go to https://NordVPN.com/veritasium and get an exclusive NordVPN deal + 4 extra months. It’s risk free with NordVPN’s 30-day money-back guarantee! If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter Huge thanks to NIST for their help making this video. Visit their website: https://www.nist.gov/pml/time-and-frequency-division Join our Patreon for a chance to get a NASA sticker that went to the edge of space during the eclipse and for early access to work-in-progress videos https://ve42.co/VePatreon Last year, we launched Elements of Truth on Kickstarter and were thrilled by the response. We’re now in the final stages of production, and Kickstarter rewards are shipping soon. If you missed the campaign, you can now pre-order the retail edition through our new website here - https://ve42.co/YTDEcl If you backed us on Kickstarter, don’t worry, your game will ship before any pre-orders are fulfilled. ▀▀▀ 0:00 Does gravity obey the rules of quantum mechanics? 2:40 How does an atomic clock work? 6:06 Why Optical Atomic Clocks Are So Accurate 8:51 Using Lasers To Cool Atoms Down 13:47 Driving an atomic clock up a mountain 17:01 Linking Atomic Clocks Across 80 Kilometres 19:00 Flying an Atomic Clock in a Helicopter 25:11 How Do You Measure the Frequency of Light? 28:40 Optical Frequency Combs 30:42 Is Einstein Still Right? ▀▀▀ With special thanks to the experts and collaborators who made this video possible: In order of appearance, Prof. Jonathan Oppenheim (University College London), Greg Hoth (NIST), Dr. Andrew Ludlow (NIST), Dr. Laura Sinclair (NIST), Dr. Harikesh Ranganath (NIST), Lilani Toms-Hardman (University of Western Australia), Prof. Sascha Schediwy (University of Western Australia), Dr Sabrina Slimani (University of Western Australia), Dr Benjamin Dix-Matthews (University of Western Australia). The National Institute of Standards and Technology (NIST), the University of Denver and the Meyer-Womble Observatory, the University of Western Australia and the International Centre for Radio Astronomy Research, RIKEN and the University of Tokyo. In addition, to the Precision Measurement Group (PMG) in the Institute for Photonics, Advanced Sensing and Quantum Technologies (IPAS-QT) at Adelaide University who provided the two portable atomic clocks used in the UWA test. https://ve42.co/AdelaideUniversityPrecisionMeasurementGroup In the production of this video, Rebecca Jacobson, Dr. Emily Caldwell, Dr. Kyle Latty (NIST), Nicholas Kurth, University of Colorado (Boulder), Dr. Bryn Crawford (Adelaide University), Prof. Hidetoshi Katori, A/Prof. Kai Suekane, Dr. Shota Yo and Dr. Hiutat Yang (RIKEN & University of Tokyo). In additional research and review, Prof. David Kaiser (MIT), Prof. Scott Diddams (University of Colorado Boulder), Prof. Claudia de Rham (Imperial College London), Prof. Steven Cundiff (University of Michigan) and Dr. Derek van Westrum (NOAA National Geodetic Survey). For their support with archive footage, the NIST Archive, Prof. Jun Ye (NIST/JILA) and Brent Doerzman. ▀▀▀ References: https://ve42.co/AtomicClockReferences For more information on the dipole trap: https://ve42.co/HBDDipole MIT Open Access Course: https://ve42.co/FreeLecturesHere ▀▀▀ Special thanks to our Patreon supporters: Adam Foreman, Albert Wenger, Alex Porter, Alexander Tamas, André Powell, Anton Ragin, Balkrishna Heroor, Bertrand Serlet, Blake Byers, Bruce, Bryan Ackermann, Chris Brewer, Data Don, Dave Kircher, David Johnston, David Tseng, EJ Alexandra, Evgeny Skvortsov, Garrett Mueller, Gnare, gpoly, Hayden Christensen, Hong Thai Le, Hybrid Minds, Ibby Hadeed, Jeromy Johnson, Juan Benet, Kelcey Steele, KeyWestr, Kyi, Lee Redden, Marinus Kuivenhoven, Mark Heising, Martin Paull, Meekay, meg noah, Michael Krugman, Orlando Bassotto, Parsee Health, Paul Peijzel, Robson, Sam Lutfi, Shalva Bukia, Sinan Taifour, Sweet_Nemo, Tj Steyn, Ubiquity Ventures, wolfee, Burt Humburg, Sanome, Ulf Hermjakob ▀▀▀ Credits Writers: Sarah Houlton, Gregor Čavlović, Emilia Gyles Producer and Director: Sarah Houlton Presenters: Gregor Čavlović and Emilia Gyles Editor: Peter Nelson Additional Editing: James Stuart and Trenton Oliver Animators: Alex Drakoulis, Andrew Neet, Domonkos Józsa, Emma Wright and Fabio Albertelli Researchers: Sophia Rose and Gabe Strong Camera Operators: James Chance, Jesse Bartlett, Sarah Houlton, Gregor Čavlović and Emilia Gyles Thumbnail Designers: Abdallah Rabah, Daniel Ellacott and Jakub Misiek Production Team: Anna Milkovic, Glen Griffiths, Jess Bishop-Laggett, Matthew Cavanagh Executive Producers: Gregor Čavlović, Emilia Gyles and Derek Muller


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Sovereign Citizen Claims He's Not The Defendant And That He Wasn't DRIVING IN COMMERCE!!!

Hey guys, and welcome to today's video! Today we have a Sovereign Citizen in North Dakota who claims that he isn't the named defendant and that he wasn't driving in commerce! This is just another example of a PRO SE FAIL!!! To Support The Channel : Team Skeptic Fund : https://paypal.me/TeamSkepticYT Become A Channel Member : https://www.youtube.com/channel/UCawl3BI9azbMB5DQqJNpRrg/join Join Our Patreon : https://www.patreon.com/TeamSkeptic #Court #CourtCam #TeamSkeptic


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Why Camera Height Changes What You See Beyond the Horizon

Bob compares the same distant landmarks from different camera heights. The explanation considers sightline geometry and the need to account for atmospheric refraction. Want to learn more? Watch this related public BtSG video: Science You Can Test: Measuring Curvature Across Lake Michigan https://www.youtube.com/watch?v=J2r8VuZbkpQ Bob the Science Guy — Science You Can Test. Follow for more science you can test! #Science #BobTheScienceGuy #Shorts


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Where do Japanese monsters come from? pt 7

Produced by The Mythology Guy
This episode features: Where do Japanese monsters come from? pt 7

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5 sneaky ways stores get you to spend more

Explore 5 tactics that retailers use to influence what you buy and what you’re willing to pay, and how to avoid being tricked. -- You’re about to buy some bargain bin headphones when you spot another sale. A different pair that is more expensive, but selling for half their usual price. Which is the better buy? And how do you know you’re not falling for a retailer’s psychological tricks? Explore common tactics that retailers use to influence what you buy and what you’re willing to pay, and how you can avoid being tricked. Directed by Homework Studio. This video was made possible in collaboration with Nobel Prize Outreach, and with support from the Sloan Foundation Learn more about how TED-Ed partnerships work: http://t.ted.com/Rbx7KCW Visit https://ed.ted.com/nobel-prize to explore more ideas, innovations, and achievements honored by the Nobel Prize Support Our Non-Profit Mission ---------------------------------------------- Support us on Patreon: http://t.ted.com/nlVpzFN Check out our merch: http://t.ted.com/upNeDi3 ---------------------------------------------- Connect With Us ---------------------------------------------- Sign up for our newsletter: http://t.ted.com/R7iMQzr Follow us on Facebook: http://t.ted.com/NKcsscO Find us on Twitter: http://t.ted.com/nXsWmpA Peep us on Instagram: http://t.ted.com/zuDVFXP ---------------------------------------------- Keep Learning ---------------------------------------------- View full lesson: https://ed.ted.com/lessons/5-sneaky-ways-stores-get-you-to-spend-more Dig deeper with additional resources: https://ed.ted.com/lessons/5-sneaky-ways-stores-get-you-to-spend-more/digdeeper Animator's website: https://www.homeworkstudio.ca Music: https://www.campstudio.co ---------------------------------------------- Thank you so much to our patrons for your support! Without you this video would not be possible! Brad Sullivan, Karen Ho, Niklas Frimberger, Hunter Manhart, Nathan Nguyen, Igor Stavchanskiy, James R DeVries, Grace Huo, Diana Huang, Chau Hong Diem, Orlellys Torre, Corheu, Thomas Mee, Maryann H McCrory, Blas Borde, John Hellmann, Poompak Meephian, Chuck Wofford, Adam Pagan, Wes Winn, Conder Shou, ntiger, Noname, Hansan Hu, David D, Mac Hyney, Keith Ellison, robin valero walters, Lynne Truesdale, Gatsby Dkdc, Matthew Neal, Denis Chon, Julian Oberhofer, Monte Carroll, Eddy, Jay M, Constantino Victor Delgado, Andrea Galvagni, Andrew Tweddle, Laurel-Ann Rice, Fernando A. Endo, Helen Lee, pam morgan, sarim haq, Gerardo Castro, Michel-Ange Hortegat, Enes Kirimi, Amaury BISIAUX, ND, and Samyogita Hardikar.


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Is there something faster than light?

The experiment that broke relativity. How an argument between Einstein and Bohr changed quantum mechanics forever.


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How to Plan a Useful Long-Distance Horizon Observation

Camera height, target elevation, distance, and atmospheric conditions all matter. Bob explains what to record before interpreting a long-distance horizon photograph. Want to learn more? Watch this related public BtSG video: Can You Measure Earth's Curvature? A 2,552-Foot Sightline Test https://www.youtube.com/watch?v=FwILDjPUAx4 Bob the Science Guy — Science You Can Test. Follow for more science you can test! #Science #BobTheScienceGuy #Shorts


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