I put cameras inside a dishwasher to wash away some common dishwasher myths. Learn more about the KitchenAid® 360° Max Jets Third Rack Dishwasher by visiting KitchenAid.com/veritasium #sponsored #kitchenaidambassador
The mistakes of Amelia Earhart’s final flight, and the physics that could have saved her. Use code VERITASIUM to get 50% off your 1st club crate when you join a club for kids aged 3+ or go to https://kiwico.com/veritasium
00:00 Amelia Earhart’s final flight
03:33 Who was Amelia Earhart?
05:36 The flight plan
07:13 How celestial navigation works
09:16 Invention of radio technology
12:02 Radio waves explained
22:44 Earhart makes her critical decision
24:55 Communication failures
28:30 “Gas is running low”
31:39 Her desperate final message
33:01 The small detail that could have saved her
Special thanks to Clifford Heath for his help putting together the radio demo, and the folks at the Victorian ARDF group for connecting us.
Thank you to Brian Harrison and Michael Murphy with the AWA Communication Technologies Museum for their assistance with early research.
Thank you to Peter Bevelacqua over at Antenna Theory for help filling in some missing details.
Sharp-eyed viewers might notice there doesn’t seem to be a loop antenna in the flight simulation shots. It sadly wasn’t included in the simulator’s model of Earhart’s Electra, but it features prominently in old photos.
Join us on Patreon for early access videos, bonus content, and to support Veritasium! https://ve42.co/PatreonDE
Patrons: Adam Foreman, Albert Wenger, Alexander Tamas, Anton Ragin, Balkrishna Heroor, Bertrand Serlet, Bill Linder, Blake Byers, Bruce, Dave Kircher, David Johnston, Evgeny Skvortsov, Garrett Mueller, Gnare, Greg Scopel, I. H., John H. Austin, Jr., Juan Benet, KeyWestr, Kirill Shore, Kyi, Lee Redden, Marinus Kuivenhoven, Matthias Wrobel, Meekay, Michael Krugman, Orlando Bassotto, Paul Peijzel, Reed Spilmann, Richard Sundvall, Sam Lutfi, TTST, Tj Steyn, Ubiquity Ventures, gpoly, john kiehl, meg noah, wolfee
If you’re looking for a molecular modeling kit, try Snatoms, a kit I invented where the atoms snap together magnetically – https://ve42.co/SnatomsV
Directed by Sulli Yost and Derek Muller
Written by Sulli Yost and Derek Muller
Edited by Peter Nelson
Animated by David Szakaly, Fabio Albertelli, Ivy Tello, Mike Radjabov, Mohamed Alhaj, Emma Wright
Illustrations by Jakub Misiek, Emma Wright, Maria Gusakovich
Filmed by Derek Muller and Bernard Lau
Additional Research by Gabriel Strong, Geeta Thakur
Produced by Sulli Yost, Derek Muller, Rob Beasley Spence, Emily Lazard, Tori Brittain, Umar Ijaz
Thumbnail contributions by Peter Sheppard, Ren Hurley
Additional video/photos supplied by Getty Images and Storyblocks
Music from Epidemic Sound and Jonny Hyman
Glass is one of the most important materials humans have ever made. Try out Saily by heading to https://saily.com/veritasium and remember to use coupon code veritasium to get 15% off your first purchase.
00:00 Glass and our place in the universe
01:23 How Gorilla Glass works
04:35 What is glass?
05:15 Is glass a liquid?
07:29 Different types of glass
09:59 Invention of transparent glass
11:56 Why is some glass transparent?
14:54 Invention of glass lenses
15:52 Development of magnification
18:02 How to make glass more durable
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Join us on Patreon for early access videos, bonus content, and to support Veritasium! https://ve42.co/PatreonDE
Patrons: Adam Foreman, Albert Wenger, Alexander Tamas, Anton Ragin, Balkrishna Heroor, Bertrand Serlet, Bill Linder, Blake Byers, Bruce, Dave Kircher, David Johnston, Evgeny Skvortsov, Garrett Mueller, Gnare, Greg Scopel, I. H., John H. Austin, Jr., Juan Benet, KeyWestr, Kirill Shore, Kyi, Lee Redden, Marinus Kuivenhoven, Matthias Wrobel, Meekay, Michael Krugman, Orlando Bassotto, Paul Peijzel, Reed Spilmann, Richard Sundvall, Sam Lutfi, TTST, Tj Steyn, Ubiquity Ventures, gpoly, john kiehl, meg noah, wolfee
If you’re looking for a molecular modeling kit, try Snatoms, a kit I invented where the atoms snap together magnetically – https://ve42.co/SnatomsV
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Directed by Petr Lebedev
Written by Petr Lebedev and Derek Muller
Edited by Nick Lear
Animated by Fabio Albertelli, Ivy Tello, David Szakaly and Rokas Viksraitis
Illustrated by Jakub Misiek, Emma Wright, and Maria Gusakovich
Filmed by Petr Lebedev, Sulli Yost and Miranda Prise
Additional research by Gabe Strong, Geeta Thakur
Produced by Petr Lebedev, Derek Muller, Rob Beasley Spence, Gabe Strong, and Tori Brittain
Thumbnail contributions by Jakub Misiek, Ren Hurley and Peter Sheppard
Additional video/photos supplied by Getty Images, Storyblocks
Music from Epidemic Sound
The single principle that underpins all of physics. Head to https://brilliant.org/veritasium to start your free 30-day trial and get 20% off an annual premium subscription.
A massive thank you to Prof. Steven Strogatz for his expertise and enthusiasm. As an exclusive bonus for our Patreon members, we’ve posted a longer interview with Prof. Strogatz over there: https://www.patreon.com/posts/principle-of-116042877
A huge thank you to Prof. Haithem Taha, Prof. Anthony Bloch, Dr. Carl-Fredrik Nyberg Brodda, Dr. Sarah Millholland, and Dr. Andrew Mitchell for all their help with finding the story and getting it right.
A special thanks to Dr. Aurèle Adam, Ron Haaksman, Marc Serra Peralta, and everyone at the Delft Makerspace for their help with preparing and performing experiments.
00:00 One rule that replaces all of physics
00:51 The problem of fastest descent
05:09 Fermat’s principle
07:17 Bernoulli’s solution
10:38 Maupertuis’ principle
12:28 Maupertuis attacked and ridiculed
14:01 Euler & Lagrange to the rescue
17:22 The general approach to solving these problems
19:32 Writing the principle into its modern form
23:17 Why the principle works
27:08 Another way to do mechanics
30:19 A “spooky” breakthrough
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Join us on Patreon for early access videos and exclusive bonus content https://ve42.co/PatreonDE
Patrons: Adam Foreman, Anton Ragin, Balkrishna Heroor, Bertrand Serlet, Bill Linder, Blake Byers, Burt Humburg, Chris Harper, Dave Kircher, David Johnston, Evgeny Skvortsov, Garrett Mueller, Gnare, gpoly, I. H., John H. Austin, Jr., john kiehl, Josh Hibschman, Juan Benet, KeyWestr, Kyi, Lee Redden, Marinus Kuivenhoven, Martin, Matthias Wrobel, Max Paladino, Meekay, meg noah, Michael Krugman, Orlando Bassotto, Paul Peijzel, Richard Sundvall, Sam Lutfi, Stephen Wilcox, Tj Steyn, Toni , TTST, Ubiquity Ventures, wolfee
If you’re looking for a molecular modeling kit, try Snatoms, a kit I invented where the atoms snap together magnetically – https://ve42.co/SnatomsV
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Key references:
A fantastic book on the history of the Principle of Least Action: Rojo, A. and Bloch, A. The
Principle of Least Action: History and Physics. – https://ve42.co/Bloch2018
Coopersmith, J. (2017). The lazy universe: an introduction to the principle of least action. Oxford University Press. – https://ve42.co/LazyU
3Blue1Brown. The Brachistochrone, with Steven Strogatz via Youtube – https://ve42.co/Brach3B1B
Vsauce. The Brachistochrone via Youtube – https://ve42.co/BrachV
PBS Space Time. Is ACTION The Most Fundamental Property in Physics? via Youtube – https://ve42.co/PBSAction
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Directed by Casper Mebius
Written by Casper Mebius and Derek Muller
Edited by Trenton Oliver
Animated by Fabio Albertelli, Ivy Tello, Mike Radjabov, Gregor Čavlović, Emma Wright, James Finnemore and David Szakaly
Illustrated by Jakub Misiek, Emma Wright, and Maria Gusakovich
Filmed by Derek Muller and Casper Mebius
Additional research by Gabe Strong, Gregor Čavlović, and Geeta Thakur
Produced by Casper Mebius, Derek Muller, Rob Beasley Spence, Gabe Strong, Gregor Čavlović, and Tori Brittain
Thumbnail contributions by Jakub Misiek, Ren Hurley and Peter Sheppard
Additional video/photos supplied by Getty Images, Storyblocks, and NASA SVS
Music from Epidemic Sound
Europa Clipper is looking for signs of alien life in a very deadly place. Head to http://80000hours.org/veritasium to start planning a career that can help change the world for the better.
A massive thank you to Dr. Robert Pappalardo for his expertise and time.
A huge thank you to Gretchen McCartney and Cynthia B. Phillips at NASA JPL for their help.
For more on hydrothermal vents, check out NaturalWorldFacts on YouTube – @NaturalWorldFacts
00:00 ATTEMPT NO LANDING.
01:06 Jupiter’s deadly radiation belts
03:56 Europa’s secret
06:15 Why Europa isn’t completely frozen
08:03 Effects of tidal flexing
09:13 Why alien life could exist
10:39 How Europa Clipper detects signs of life
11:34 Why not Enceladus?
13:01 Europa Clipper’s instruments
15:13 Launch date and first results
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Special thanks to our Patreon supporters! Join the community to help us keep our videos free, forever: https://ve42.co/PatreonDE
Adam Foreman, Albert Wenger, Anton Ragin, Ayush Agrawal, Balkrishna Heroor, Bertrand Serlet, Bill Linder, Blake Byers, Bruce, Dave Kircher, David Johnston, Evgeny Skvortsov, Garrett Mueller, Gnare, gpoly, I. H., Jack Cuprill, John H. Austin, Jr., john kiehl, Juan Benet, KeyWestr, Kirill Shore, Kyi, Lee Redden, Marinus Kuivenhoven, Matthias Wrobel, Meekay, meg noah, Michael Krugman, Orlando Bassotto, Paul Peijzel, Reed Spilmann, Richard Sundvall, Sam Lutfi, Shiroyasha, Tj Steyn, TTST, Ubiquity Ventures and wolfee
If you’re looking for a molecular modeling kit, try Snatoms, a kit I invented where the atoms snap together magnetically – https://ve42.co/SnatomsV
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References:
Europa Clipper via Wikipedia – https://ve42.co/ECWiki
Magnetosphere of Jupiter via Wikipedia – https://ve42.co/JupiterMagWiki
Europa Clipper (2024) via Nasa.gov – https://ve42.co/ECNasa
Extraterrestrial Cycloids – Why Are They on Europa? via minutephysics on YouTube – https://ve42.co/MinPhysCycloid
Hand, K. P. & Carlson, R. W. (2015). Europa’s surface color suggests an ocean rich with sodium chloride. Geophysical research letters – https://ve42.co/Carlson2015
Dalton, J. B. et al. (2003). Near-Infrared Detection of Potential Evidence for Microscopic Organisms on Europa. Astrobiology – https://ve42.co/Dalton2003
Europa Clipper: Exploring Jupiter’s Ocean World (2024, May 24) via Youtube – https://ve42.co/PappalardoLec
Carr, M., Belton, M., Chapman, C. et al. (1998). Evidence for a subsurface ocean on Europa. Nature 391, 363–365 – https://ve42.co/Carr1998
New Findings Support Prospect of Life on Jupiter’s Moon Europa (2024) via Nasa.gov – https://ve42.co/NasaEuropaLife
Meitzler, R., Jun, I., Blase, R. et al. (2023). Investigating Europa’s Radiation Environment with the Europa Clipper Radiation Monitor. Space Sci Rev 219, 61 – https://ve42.co/Meitzler2023
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Directed by Gregor Čavlović
Written by Gregor Čavlović and Derek Muller
Edited by Jack Saxon
Animated by Mike Radjabov, Fabio Albertelli, and Jack Saxon
Illustrated by Jakub Misiek
Filmed by Derek Muller, Petr Lebedev and Gregor Čavlović
Additional research by Gabriel Strong
Produced by Derek Muller, Gregor Čavlović, Rob Beasley Spence, Tori Brittain, Luke Lewis, Barbara Abraul, Gabriel Strong, Petr Lebedev, and Casper Mebius
Thumbnail contributions by Ren Hurley, Peter Sheppard, and Jakub Misiek
Additional video/photos supplied by Getty Images and Storyblocks
Music from Epidemic Sound
The world’s first look inside a thermite reaction. Use code veritasium at https://incogni.com/veritasium to get an exclusive 60% off an annual Incogni plan.
A massive thank you to everyone at Goldschmidt for making this possible. With special thanks to Dr. Axel Hoeschen, Christof Gassmann and Claudia Koch.
00:00 What is thermite?
00:51 Hans Goldschmidt and the first thermite reaction
05:55 The reaction as it’s never been seen before
14:57 How thermite welding works
17:43 I destroyed a laptop!
26:44 How thermite is made
31:11 Blow-torching thermite to show how reactive it is
If you’re looking for a molecular modeling kit, try Snatoms, a kit I invented where the atoms snap together magnetically. https://snatoms.com/
Albert Wenger, Anton Ragin, Ayush Agrawal, Balkrishna Heroor, Bertrand Serlet, Bill Linder, Blake Byers, Bruce, Dave Kircher, David Johnston, Evgeny Skvortsov, Garrett Mueller, Gnare, I. H., Jack Cuprill, John H. Austin, Jr., Juan Benet, KeyWestr, Kirill Shore, Kyi, Lee Redden, Marinus Kuivenhoven, Matthias Wrobel, Meekay, Michael Krugman, Orlando Bassotto, Paul Peijzel, Reed Spilmann, Richard Sundvall, Sam Lutfi, TTST, Tj Steyn, Ubiquity Ventures, gpoly, john kiehl, meg noah, wolfee
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Directed by Derek Muller
Written by Derek Muller
Edited by Trenton Oliver
Animated by Fabio Albertelli, Rokas Vikšraitis and Mike Radjabov
Illustrations by Jakub Misiek
Filmed by Derek Muller, David Bochmann, Casper Mebius, Luise Dietert, Henning Fischer and Harald Schweiger
Additional Research by Gregor Čavlović and Gabriel Strong
Produced by Gregor Čavlović, Derek Muller, Casper Mebius, Rob Beasley Spence, Emily Lazard and Tori Brittain
Thumbnail contributions by Peter Sheppard, Ren Hurley and Casper Mebius
Additional video/photos supplied by Getty Images and Story Blocks
Music from Epidemic Sound
How do QR codes work? The checkerboard patterns taking over the world, demystified. Go to https://Saily.com/veritasium and use the code ‘veritasium’ to get an exclusive 15% off your first purchase.
Special thanks to Mashiro Hara and Yuki Watanabe.
00:00 I was wrong
00:49 How Morse Code revolutionized communication
03:57 How barcodes work
10:34 How QR codes store information
18:16 Why damaged QR codes still work
29:54 Why are QR codes so common?
31:21 How safe are QR codes?
32:25 The future of QR codes
If you’re looking for a molecular modeling kit, try Snatoms, a kit I invented where the atoms snap together magnetically. https://snatoms.com/
Adam Foreman, Albert Wenger, Anton Ragin, Balkrishna Heroor, Bertrand Serlet, Bill Linder, Blake Byers, Bruce, Dave Kircher, David Johnston, Evgeny Skvortsov, Garrett Mueller, Gnare, I. H., Jack Cuprill, John H. Austin, Jr., Juan Benet, KeyWestr, Kirill Shore, Kyi, Lee Redden, Marinus Kuivenhoven, Matthias Wrobel, Meekay, Michael Krugman, Orlando Bassotto, Paul Peijzel, Reed Spilmann, Richard Sundvall, Sam Lutfi, TTST, Tj Steyn, Ubiquity Ventures, gpoly, john kiehl, meg noah, wolfee
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Directed by Sumeet Kulkarni
Written by Sumeet Kulkarni and Derek Muller
Edited by Peter Nelson and Luke Molloy
Animated by David Szakaly, Fabio Albertelli, James Finnemore, Ivy Tello
Illustrations by Jakub Misiek, Emma Wright
Filmed by Derek Muller and Raquel Nuno
Additional Research by Gabriel Strong
Produced by Sumeet Kulkarni, Derek Muller, Rob Beasley Spence, Emily Lazard, Tori Brittain, Emily Zhang
Thumbnail contributions by Peter Sheppard, Ren Hurley, David Szakaly, Gregor Čavlović, Raquel Nuno
Additional video/photos supplied by Getty Images and Story Blocks
Music from Epidemic Sound
Can you trust your phone? Head to https://brilliant.org/veritasium to start your free 30-day trial and get 20% off an annual premium subscription.
A huge thank you to Linus Sebastian and the team at Linus Tech Tips – check them out at @LinusTechTips
A massive thank you to Alexandre De Oliveira and Karsten Nohl (aka @hackingmatters) for making this demo possible. Karsten has made a great follow-up video on the subject, which you can watch here: https://www.youtube.com/watch?v=miXRoy-5LLo
A special thanks to Crofton Black at Lighthouse Reports, Cathal Mc Daid at Enea, and James Hobson at @hacksmith
00:00 I hacked Linus!
00:59 How Steve Jobs and Steve Wozniak hacked the telephone network
02:22 Early history of the telephone
07:08 The kidnapping of Sheikha Latifa
08:41 How Signalling System No. 7 works
11:03 Why SS7 is vulnerable to hacking
12:15 How hackers gain access to phones
16:17 How I was able to spy on Linus’ phone
18:09 How hackers can intercept text messages
21:04 How your location can be tracked via SS7
29:03 How to protect your phone from hacking
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Special thanks to our Patreon supporters! Join the community to help us keep our videos free, forever: https://ve42.co/PatreonDE
Adam Foreman, Albert Wenger, Anton Ragin, Balkrishna Heroor, Bertrand Serlet, Bill Linder, Blake Byers, Bruce, Burt Humburg, Dave Kircher, David Johnston, Evgeny Skvortsov, Garrett Mueller, Gnare, gpoly, I. H., Jack Cuprill, John H. Austin, Jr., john kiehl, Juan Benet, KeyWestr, Kyi, Lee Redden, Marinus Kuivenhoven, Matthias Wrobel, Meekay, meg noah, Michael Krugman, Orlando Bassotto, Paul Peijzel, Richard Sundvall, Sam Lutfi, Tj Steyn, TTST, Ubiquity Ventures and wolfee
If you’re looking for a molecular modeling kit, try Snatoms, a kit I invented where the atoms snap together magnetically – https://ve42.co/SnatomsV
▀▀▀
Directed by Henry van Dyck
Written by Henry van Dyck
Edited by Laura Mills
Animated by Fabio Albertelli, Ivy Tello, David Szakaly, and Jakub Misiek
Filmed by Derek Muller and Linus Media Group Team
Additional research by Gabe Strong
Produced by Derek Muller, Henry van Dyck, Rob Beasley Spence, Tori Brittain, Emily Lazard, Luke Lewis, Gregor Čavlović, and Emily Zhang
Thumbnail contributions by Ren Hurley and Peter Sheppard
Additional video/photos supplied by Getty Images and Storyblocks
Music from Epidemic Sound