2024-09-30

[public] 2.98M views, 226K likes, dislikes audio only

Veritasium

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/

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References: https://ve42.co/O

Images & Video:

1940’s grocery store - H.I.C - https://ve42.co/1940sShop

Why Americans Are Obsessed With Peanut Butter via Youtube - https://ve42.co/PeanutButter1

Jif Peanut Butter 90s Commercial (1998) via Youtube - https://ve42.co/PeanutButter2

Vericode Symbol via Youtube - https://ve42.co/VericodeSymbol

Oreo introduces Sour Patch Kids cookies via YouTube - https://ve42.co/OreaSour

BSE - Changes in Behaviour via YouTube - https://ve42.co/BSE

QR Code with Drones | Firefly Drone Show via YouTube - https://ve42.co/DroneQRCode

Damaged barcode 1 by christiaangpr via Reddit - https://ve42.co/DamagedBarcode1

Damaged barcode 2, Midcom service group https://ve42.co/DamagedBarcode2

Oskana, G and Petkova, A. (2020 July 1). Testing a nano-barcodes marking technology for identification and protection of the mechanical products, Fig. 1 - https://ve42.co/MatrixCodes

NASA Celebrates 40 Years of the Voyager Mission via Nasa.gov - https://ve42.co/Voyager40Yr

Apollo footage via Nasa.gov - https://ve42.co/ApolloFootage

Snake in a QR code by MattKC via mattkc.com - https://ve42.co/SnakeQR

Scratched CD by Ice3yes via Reddit - https://ve42.co/ScratchedCD

Alfred Vail Portrait via si.edu - https://ve42.co/AlfredVail

Bernard Silver Portrait vai invent.org - https://ve42.co/BernardSilver

Norman Joseph Woodland Portrait via usatoday.com https://ve42.co/NormanWoodland

Masahiro Hara portrait via denso.com https://ve42.co/MasahiroPhoto

Cooke and Wheatstone telegraph patents via Wikipedia:

https://ve42.co/TelegraphPatent1

https://ve42.co/TelegraphPatent2

https://ve42.co/TelegraphPatent3

https://ve42.co/TelegraphPatent4

https://ve42.co/TelegraphPatent5

https://ve42.co/TelegraphPatent6

5 needle telegraph via cachesleuth.com- https://ve42.co/NeedleTelegraph

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Special thanks to our Patreon supporters:

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 Bean

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