Veritasium

Does Water Swirl the Other Way in the Southern Hemisphere?

Title: Does Water Swirl the Other Way in the Southern Hemisphere?
Runtime: 5:59
Date posted: 9 years ago
Description: The definitive answer about the direction water swirls in two hemispheres
Sync the videos yourself: http://toiletswirl.com

For the record Destin and I repeated the experiment 3-4 times each in each hemisphere and got the same results every time.

The idea that water going down a drain or flushed down a toilet swirls in opposite directions in the Northern and Southern Hemispheres has a long history. But few have ever done the experiment. Destin from Smarter Every Day and I performed identical experiments in the Northern and Southern hemispheres. What we found is the direction of water swirl in a toilet, sink, or bathtub is determined by other sources of angular momentum. However if the body of water is big enough, e.g. a kiddy pool, and left still for long enough (at least 24 hours), then the Coriolis effect is observable with water swirling counterclockwise in the Northern hemisphere and clockwise in the Southern hemisphere.

Veritasium on Ins...

Title: The Science of Thinking
Runtime: 12:10
Date posted: 9 years ago
Description: How the brain works, how we learn, and why we sometimes make stupid mistakes.
Submit ideas: http://ve42.co/GotIdeas
Apply to work with me: http://ve42.co/JoinUs

Thanks to Patreon supporters:
Nathan Hansen, Donal Botkin, Tony Fadell, Zach Mueller, Ron Neal

Support Veritasium on Patreon: http://bit.ly/VePatreon

This video was inspired by the book Thinking Fast and Slow by Daniel Kahneman

Harpist: Lara Somogyi http://ve42.co/Lara
Animator: Jesse Agar http://ve42.co/ThisPlace
Filmed by Raquel Nuno

Music by Kevin MacLeod, http://incompetech.com "Sneaky Adventure" "Harlequin"

Title: 3 Sources of Water on the Moon
Runtime: 6:04
Date posted: 10 years ago
Description: NEW CHANNEL! http://youtube.com/sciencium

For a long time we thought the Moon was completely dry, but it turns out there are actually three sources of lunar water.
Thanks to Google Making and Science for supporting the new channel! http://youtube.com/makingscience

Thanks to Patreon supporters:
Nathan Hansen, Donal Botkin, Tony Fadell, Zach Mueller, Ron Neal

Support Veritasium on Patreon: http://bit.ly/VePatreon

References:
Great history of water on the moon: https://arxiv.org/pdf/1205.5597.pdf

Filmed by Raquel Nuno

Music from http://epidemicsound.com "Serene Story 2"

Title: Electromagnetic Levitation Quadcopter
Runtime: 6:19
Date posted: 10 years ago
Description: Spinning magnets near copper sheets create levitation!
Try Audible free for 30 days: http://bit.ly/AudibleVe
Special thanks to Hyperloop One for showing me around.

Thanks to Patreon supporters:
Nathan Hansen, Donal Botkin, Tony Fadell, Saeed Alghamdi, Zach Mueller, Ron Neal, Perry cl, Bryan Baker
Support Veritasium on Patreon: http://bit.ly/VePatreon

Filmed by Raquel Nuno, Edited by Trevor Carlee

Obviously this "quadcopter" is a demonstration device, showing how moving magnets over a conducting surface can generate levitation. It has not been optimized to minimize losses or be an efficient mode of transport. I still think it's pretty cool. I'm used to seeing light things levitated by induced currents but not a 100+ lb machine.

For more on Hyperloop One: https://hyperloop-one.com/

The Real Moral Dilemma of Self-Driving Cars

Title: The Real Moral Dilemma of Self-Driving Cars
Runtime: 3:41
Date posted: 10 years ago
Description: We talk about all the potentially challenging situations autonomous cars could get into but not about how human drivers are not very good. Tens of thousands die on the roads every year in collisions, most of which could be prevented by autonomous vehicles.
Sponsored by BMW

I wanted to make a video about autonomous cars for some time but I hadn't had the opportunity. The self-driving technology is already at a state where it can save lives if only it were more widely implemented.

Links to original clips:
TED-Ed https://www.youtube.com/watch?v=ixIoDYVfKA0
BBC Newsnight: https://www.youtube.com/watch?v=FypPSJfCRFk&t=172s

Music from http://www.epidemicsound.com "Ambient Electronic Groove," "Pet Animals 2," "The Long Ride."
Filmed by Raquel Nuno
Edited by Trevor Carlee

The Absurdity of Detecting Gravitational Waves

Title: The Absurdity of Detecting Gravitational Waves
Runtime: 9:07
Date posted: 10 years ago
Description: A head-vaporizing laser with a perfect wavelength detecting sub-proton space-time ripples.
Huge thanks to Prof Rana Adhikari and LIGO: http://ligo.org
Here's how he felt when he learned about the first ever detection: https://youtu.be/ViMnGgn87dg

Thanks to Patreon supporters:
Nathan Hansen, Donal Botkin, Tony Fadell, Saeed Alghamdi, Zach Mueller, Ron Neal
Support Veritasium on Patreon: http://bit.ly/VePatreon

A lot of videos have covered the general overview of the discovery of gravitational waves, what they are, the history of the search, when they were found but I wanted to delve into the absurd science that made the detection possible.

When scientists want one megawatt of laser power, it's not just for fun (though I'm sure it's that too), it's because the fluctuations in the number of photons is proportional to their square root, making more powerful beams less noisy (as a fraction of their total). The smoothest mirrors ...

Post-Truth: Why Facts Don't Matter Anymore

Title: Post-Truth: Why Facts Don't Matter Anymore
Runtime: 19:02
Date posted: 10 years ago
Description: Why we can't seem to agree on what's true when it's easier than ever to check.
Videos like this are usually on 2Veritasium: http://bit.ly/2Veritasium
Support Veritasium on Patreon: http://bit.ly/VePatreon

This video was filmed at a meetup in Stockholm, Sweden on Dec. 9, 2016. Huge thanks to everyone who attended - I had a great time. Sorry to those of you I missed, especially Lund and Gothenburg.

Thanks to Patreon supporters (but this is a non-paid post):
Meshal Alshammari, Nathan Hansen, Bryan Baker, Donal Botkin, Tony Fadell, Saeed Alghamdi, Ron Neal

Title: Indestructible Coating?!
Runtime: 7:09
Date posted: 10 years ago
Description: Used in everything from bullet-proof vests to the walls of the Pentagon, polyurea's strength comes from its long-chain molecules.
Check out How Ridiculous: http://bit.ly/VeHowRidiculous
Snatoms magnetic molecules: http://bit.ly/VeSnatoms
Veritasium on Patreon: http://bit.ly/VePatreon

Special thanks to South Bay Line-X: http://southbaylinex.com/

Thanks to Patreon supporters:
Nathan Hansen, Bryan Baker, Donal Botkin, Tony Fadell, Saeed Alghamdi

Filmed by Prashanth Venkataramanujam

SFX by A Shell in the Pit

Title: What the Fahrenheit?!
Runtime: 5:24
Date posted: 10 years ago
Description: The crazy story of the arbitrary temperature scale used in a tiny minority of countries.
Check out Audible: http://bit.ly/AudibleVe
Snatoms are available again! http://www.snatoms.com
Support Veritasium on Patreon: http://bit.ly/VePatreon

Celsius didn't invent Celsius: http://bit.ly/VeCelsius

Video animated by Marcello Ascani: http://bit.ly/VeMarcello

Thanks to Patreon supporters:
Nathan Hansen, Bryan Baker, Donal Botkin, Tony Fadell, Saeed Alghamdi

Music by Kevin MacLeod: http://incompetech.com "Modern Piano Zeta - Improbable" "Ice Demon" "Divertimento K131" "Sneaky Adventure" "Sheep May Safely Graze" "Professor and the Plant"

References:
A History of the Thermometer and its uses in Meteorology by W. E. Knowles Middleton

Absolute Zero and the Conquest of Cold by Tom Shachtman

The Science of Measurement, A Historical Survey by Herbert Arthur Klein

Lehrbu...

Is This What Quantum Mechanics Looks Like?

Title: Is This What Quantum Mechanics Looks Like?
Runtime: 7:41
Date posted: 10 years ago
Description: Silicone oil droplets provide a physical realization of pilot wave theories.
Check out Smarter Every Day: http://bit.ly/VeSmarter
Support Veritasium on Patreon: http://bit.ly/VePatreon

Huge thanks to:
Dr. Stephane Perrard, Dr Matthieu Labousse, Pr Emmanuel Fort, Pr Yves Couder and their group site http://dualwalkers.com/
Prof. John Bush: http://math.mit.edu/~bush/
Dr. Daniel Harris
Prof. Stephen Bartlett
Looking Glass Universe: http://bit.ly/LGUVe
Workgroup Bohemian Mechanics: http://www.mathematik.uni-muenchen.de/~bohmmech/
Filmed by Raquel Nuno

Thanks to Patreon supporters:
Nathan Hansen, Bryan Baker, Donal Botkin, Tony Fadell, Saeed Alghamdi

Thanks to Google Making and Science for helping me pursue my #sciencegoals. If you want to try this experiment, instructions are here: link.springer.com/article/10.1007/s12650-016-0383-5

The standard theory of quantum mechanics leaves ...

Why Metals Spontaneously Fuse Together In Space

Title: Why Metals Spontaneously Fuse Together In Space
Runtime: 6:53
Date posted: 10 years ago
Description: In space, metals can weld together without heat or melting.
Check out Audible: http://bit.ly/AudibleVe
Support Veritasium on Patreon: http://bit.ly/VePatreon

Written by Joh Howes and Derek Muller

Yes, it's pronounced Gemini (ee not eye) because that's the way everyone pronounced this mission.

Thanks to Patreon supporters:
Bryan Baker, Donal Botkin, Tony Fadell, Saeed Alghamdi

References:
Gemini IV transcripts: http://www.jsc.nasa.gov/history/mission_trans/gemini4.htm

Gemini IV recordings:
https://archive.org/details/Gemini4 (relevant clip is 1297 at about 2:00)

ESA cold welding recommendations:
esmat.esa.int/Publications/Published_papers/STM-279.pdf

Cold welding gold nanowire:
http://www.nature.com/nnano/journal/v5/n3/full/nnano.2010.4.html

Music by Kevin MacLeod "Intrepid" http://www.incompetech.com

How the Quantum Vacuum Gave Rise to Galaxies

Title: How the Quantum Vacuum Gave Rise to Galaxies
Runtime: 5:31
Date posted: 10 years ago
Description: All the large-scale structure in the universe may owe its existence to nothing.
Sponsored by the Dyson 360 Eye Robot #ad: http://bit.ly/2cGqBRV
Support Veritasium on Patreon: http://bit.ly/VePatreon

Thanks to Patreon supporters:
Bryan Baker, Donal Botkin, Tony Fadell, Saeed Alghamdi

Let's see how clearly I can explain this. We think of empty space as, well... empty, the epitome of nothingness. But as our understanding of physics has evolved we have realized that it's not truly empty. Space is filled with fields. There is a field for every subatomic particle. One for electrons, up quarks, down quarks, neutrinos and so on. In empty space these fields are basically zero, flat, nil. But it's impossible to make them perfectly zero so there are always some quantum fluctuations in the fields, even in a perfect vacuum. These are sometimes called virtual particles but they should really just be thought of as little disturbances in the field. Vacuum fl...

The Best and Worst Prediction in Science

Title: The Best and Worst Prediction in Science
Runtime: 8:43
Date posted: 10 years ago
Description: The best and worst predictions in science are both based on the same underlying physics
Check out the Great Courses Plus: http://ow.ly/cePe303oKDM
Support Veritasium on Patreon: http://bit.ly/VePatreon

Special thanks to:
Prof. Sean Carroll
Prof. Brian Schmidt
Prof. Stephen Bartlett
Prof. Geraint Lewis

More on this topic: http://wke.lt/w/s/XDkwi

Patreon supporters:
Bryan Baker, Donal Botkin, Tony Fadell, Jason Buster, Saeed Alghamdi, Nathan Hansen

Virtual particles are a way of talking about fields and their interactions as though particles are doing all the work. This is why there is some controversy around using the term 'virtual particles'. Some people think the term is useful, especially since in calculating with Feynman diagrams you draw all the particle interactions that are possible (and then do the calculations to get the right answer). While others feel this terminology is misleading b...

Title: Is Most Published Research Wrong?
Runtime: 12:22
Date posted: 10 years ago
Description: Mounting evidence suggests a lot of published research is false.
Check out Audible: http://bit.ly/AudibleVe
Support Veritasium on Patreon: http://bit.ly/VePatreon

Patreon supporters:
Bryan Baker, Donal Botkin, Tony Fadell, Jason Buster, Saeed Alghamdi

More information on this topic: http://wke.lt/w/s/z0wmO

The Preregistration Challenge: https://cos.io/prereg/

Resources used in the making of this video:

Why Most Published Research Findings Are False:
http://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.0020124

Trouble at the Lab:
http://www.economist.com/news/briefing/21588057-scientists-think-science-self-correcting-alarming-degree-it-not-trouble

Science isn't broken:
http://fivethirtyeight.com/features/science-isnt-broken/#part1

Visual effects by Gustavo Rosa

Title: The Illusion of Truth
Runtime: 8:25
Date posted: 10 years ago
Description: If you repeat something enough times, it comes to feel good and true.
Support Veritasium on Patreon: http://bit.ly/VePatreon
Science with Hot Wheels! My vids for kids: http://bit.ly/VeHotWheels
More info on cognitive ease: http://bit.ly/29OMGas

This episode was inspired by the book Thinking Fast and Slow by Daniel Kahneman.

This video was edited by Daniel Joseph Files, with music from Kevin MacLeod at http://incompetech.com "Marty Gots a Plan" "Sing Along With Jim" and "Full On".

Veritasium is supported on Patreon by:
Jason Buster, Saeed Alghamdi, Tony Fadell, Donal Botkin, Bryan Baker, & Imthetroublesolver 8)

Title: Stringless Yo-Yo!
Runtime: 4:52
Date posted: 10 years ago
Description: How can you Yo-Yo without the string attached?
Check out Audible: http://bit.ly/AudibleVe
For more Ben Conde: http://bit.ly/VeBenConde
For Beyond Slow Motion: http://bit.ly/VeBeyondSlowMo

For more on yo-yos check out: http://bit.ly/290wR3a

How to yo-yo without a string attached... So many crazy tricks and the science that makes it possible.

Edited and animated by Daniel Joseph Files

Celsius Made His Thermometer Upside Down

Title: Celsius Made His Thermometer Upside Down
Runtime: 8:12
Date posted: 10 years ago
Description: Celsius never devised nor used the scale that now bears his name.

Veritasium is now on Patreon: http://patreon.com/veritasium

Special thanks to Michael Stevens of Vsauce! http://youtube.com/vsauce1

More info about Celsius and temperature scales: http://wke.lt/w/s/2I6Nu

References for this video:

A History of the Thermometer and its uses in Meteorology by W. E. Knowles Middleton

Absolute Zero and the Conquest of Cold by Tom Shachtman

The Science of Measurement, A Historical Survey by Herbert Arthur Klein

Lehrbuch der Chemie by Jöns Jakob Berzelius

Special Thanks to the Uppsala University Museum
I filmed this in Uppsala in the summer of 2012! So I've been thinking about this idea for a very long time. I'm glad to finally have it out there in the world.

Title: Inside the Svalbard Seed Vault
Runtime: 9:17
Date posted: 10 years ago
Description: A rare look inside the Svalbard Global Seed Vault which is closed ~350 days a year
Check out Audible: http://bit.ly/AudibleVe
More info on the seed vault: http://wke.lt/w/s/EKFlK
My trip to Norway was funded by Screen Australia, Film Victoria and Genepool Productions as part of a new project. More information soon.

Special thanks to Bente Naeverdal and the Crop Trust: https://www.croptrust.org

Svalbard - The Northernmost Town on Earth

Title: Svalbard - The Northernmost Town on Earth
Runtime: 8:49
Date posted: 10 years ago
Description: Longyearbyen on Svalbard is the northernmost settlement with over 1000 residents
My trip to Norway was funded by Screen Australia, Film Victoria and Genepool Productions as part of a new project. More information soon.

More info on Svalbard: http://wke.lt/w/s/yiYNC

Music licensed from www.cuesongs.com "After Catalunya"
Spotify page: https://play.spotify.com/artist/2JnQ2AxkaRjlGCNmfkHiJd
iTunes: https://itunes.apple.com/gb/artist/emphemetry/id414183064

Captions:
Come take a walk with me around Longyearbyen, the largest town on the Norwegian islands of Svalbard.

Parts of it look familiar, but make no mistake, this place is different.

At 78 degrees North, it lies just 800 miles or 1300 kilometres from the North Pole. And with over 2,000 permanent inhabitants it is the Northernmost real town on Earth.

There are only 50km of road, including the small streets between houses, so people get a...

Science of Laser Hair Removal in SLOW MOTION

Title: Science of Laser Hair Removal in SLOW MOTION
Runtime: 8:22
Date posted: 10 years ago
Description: We also made a video about laser cooling! http://bit.ly/PhysGirl
Check out Audible: http://bit.ly/AudibleVe
Check out Beyond Slow Motion: http://bit.ly/VeBeyondSlowMo
More on this topic: http://wke.lt/w/s/ef3eV

Special thanks to Laser Away in Santa Monica for helping make this happen - your staff was awesome! http://bit.ly/VeLaserAway

Research and filming by Raquel Nuno and Aaron White.

Title: Why Anecdotes Trump Data
Runtime: 8:46
Date posted: 10 years ago
Description: A story is worth a thousand data points.
My second channel: http://bit.ly/2veritasium
More info on this topic: http://wke.lt/w/s/TzNC0

Title: These Liquids Look Alive!
Runtime: 5:17
Date posted: 10 years ago
Description: Why do droplets of food coloring attract, repel, and chase each other?
Snatoms molecular models: http://igg.me/at/snatoms
More about this topic: http://wke.lt/w/s/VRjRQ

Original paper on droplets: http://stanford.edu/~manup/docs/Cira_DancingDroplets.pdf
Marangoni Flow: http://web.mit.edu/2.21/www/Lec-notes/Surfacetension/Lecture4.pdf
Surface Energy: https://itf.fys.kuleuven.be/~joi/papers/Wetting%20and%20spreading.pdf

Filming and master pipetting by Raquel Nuno
Research and writing by Aaron White

Title: What Exactly is the Present?
Runtime: 7:53
Date posted: 10 years ago
Description: What is the specious present? And how do our brains perceive time?
Get a 30-day free trial on Audible: http://bit.ly/AudibleVe
More info about this topic: http://wke.lt/w/s/z8TeR

Title: Why Life Seems to Speed Up as We Age
Runtime: 7:41
Date posted: 11 years ago
Description: Why does time appear to speed up as we get older? Can we slow it down?
Thanks to the National Geographic Channel for sponsoring this video!
The new season of Brain Games starts Sunday, February 14th at 9/8c - http://po.st/90S7Ow

Brain Games is an Emmy-nominated TV series that explores the inner workings of the human mind through experiments and interactive games. Did you know it's estimated that you have more than a dozen senses in addition to the standard five? One of those is a sense of time or chronoception. Tune in to the new season of Brain Games to learn about all of your senses, and more, starting Sunday, February 14 at 9/8c

References:

Ageing and duration judgement:
http://bit.ly/1TRN0cr

Nerve conduction velocity slowing with age:
http://bit.ly/23Wq6oE

Experiments with rats suggest time perception is distributed across brain:
http://bit.ly/1T6IjdO

Time perception with ...

Title: How Long Will You Live?
Runtime: 6:26
Date posted: 11 years ago
Description: Cell biology gives clues to why we age and lobsters don't.
I made another video! The future of energy: http://bit.ly/1MAiJKm
Check out Breakthrough, Sundays at 9/8c on Nat Geo with GE #ad

Animations are from Emmy-winning film 'Immortal', reproduced here courtesy of December Media and Genepool Productions (previously Pemberton Films)

Check out Immortal here: http://bit.ly/VeImmortal

Find out more about telomeres and telomerase here: http://bit.ly/WakeTelomeres

Special thanks to Dr. Fiona Ginty, Principal Scientist in the Life Sciences and Molecular Diagnostics Group at GE. Her research focuses on imaging different proteins within the cell. It's both a very powerful technique and it's beautiful.

Filmed by Raquel Nuno and Vasilios Sfinarolakis
Aging makeup by Heather Grippaldi: http://bit.ly/1Xebikh
Music by Kevin MacLeod, www.incompetech.com "Past the Edge" and "Lightless Dawn"

Snatoms! The Magnetic Molecular Modeling Kit

Title: Snatoms! The Magnetic Molecular Modeling Kit
Runtime: 3:26
Date posted: 11 years ago
Description: I've created an educational product to help people learn chemistry!
You can buy it here: http://www.snatoms.com

The Brightest Part of a Shadow is in the Middle

Title: The Brightest Part of a Shadow is in the Middle
Runtime: 7:20
Date posted: 11 years ago
Description: Why is there a bright spot behind spherical objects?
Be the first to find out about new projects: http://www.veritasium.com

Filmed by Nathan Watkins and Raquel Nuno, animation by Meg Rosenburg. Music by Kevin MacLeod, http://www.incompetech.com 'Scissors' 'Mirage' ' Marty Gots a Plan'. Special thanks to Laura Vican for helping with the experiment.

References:
http://www.princeton.edu/~rvdb/images/Questar/PoissonSpot.html
Why Toast Lands Jelly-side Down: Zen and the Art of Physics Demonstrations By Robert Ehrlich

Title: Is Glass a Liquid?
Runtime: 7:02
Date posted: 11 years ago
Description: Stained glass is thicker at the bottom - so is it a liquid? Earth's mantle enables plate tectonics, so is it a liquid?
Check out Audible: http://bit.ly/AudibleVe
Sign up for the mailing list: http://www.veritasium.com
Pitch drop experiment: http://www.thetenthwatch.com

Thanks to Meg Rosenburg for scripting and animation, Raquel Nuno for filming and Aaron White for script consultation.

The Science of Six Degrees of Separation

Title: The Science of Six Degrees of Separation
Runtime: 9:23
Date posted: 11 years ago
Description: Are all people on Earth really connected through just six steps?
There's much more science in this than I initially expected. It turns out ordered networks with a small degree of randomness become small-work networks. This is why your acquaintances turn out to be more important in job searches and finding new opportunities than close friends.

DON'T SEND ME AN EMAIL anymore...
1. Do not send it directly to me unless you know me.
2. Send the email to someone you have met IN PERSON and know on a first name basis AND THEY KNOW YOU.
3. Make the subject line 'Six Degrees of Veritasium'
4. Explain that you're trying to get this email to me and ask them to forward it on to me (only if they know me IRL) or someone they know who might know me.
5. If your email reaches me by Sept. 1, 2015 I will email you back and ask for your address so I can send you a postcard.

Animations in this video by The Lyosacks: https://www.youtube.com/user/T...

Title: Our Greatest Delusion
Runtime: 7:39
Date posted: 11 years ago
Description: I am working on some big new projects I'm excited to share with you!

So this video is a little different from most of the others. The channel is an element of truth, after all, not an element of science. This is my truth. It may not be everyone's but that's ok too.

Clips included were from:
Chernobyl and Pripyat - drone shots from shooting Uranium
Obsidian dome, California
Panum Crater
El Capitan
The Pyramids of Giza
Toronto buildings
The Holocaust Memorial in Berlin
Abu Simbel temple at Aswan, Egypt
Sydney Harbour
Milky way time-lapse from the badlands of South Australia
Sunset over Warrnambool, Victoria
Big Bang animation courtesy of NASA
Sunrise over Bondi
Water off New Caledonia
Great white sharks in the Neptune Islands, South Australia
Crosswalk at Town Hall Sydney
EDUtubers at the YouTube EDU summit in San Francisco
Concert in Sydney
Jetpacki...

Evolutionarily Stable Strategies ft. Richard Dawkins

Title: Evolutionarily Stable Strategies ft. Richard Dawkins
Runtime: 4:29
Date posted: 11 years ago
Description: When evolution favours a stable ratio of traits rather than one dominant trait.
Check out Audible: http://bit.ly/AudibleVe
Animation by The Lyosacks: https://www.youtube.com/TheLyosacks

Hosting Neil Degrasse Tyson, info and tickets: http://bit.ly/NDTandVe
Aug. 22 in Sydney
Aug. 23 in Canberra

Special thanks to Richard Dawkins

Filmed at Academia Film Olomouc with help from Martyn Marek

Music by Kevin MacLeod www.incompetech.com 'Marty Gots a Plan' 'Sing Along with Jim'

Title: How to Launch a Nuclear Missile
Runtime: 7:41
Date posted: 11 years ago
Description: What was the procedure to launch a nuclear missile?
Uranium premieres: July 28 & 29 on PBS at 10pm ET/ 9pm Central
France and Germany: July 31 at 10pm on ZDF/arte
Norway: August 5 & 6 at 21:30 on NRK2
Australia: August 9, 16, 23 at 8:30pm on SBS
Sweden: TBD
Middle East: TBD

For more information on other screenings go to
https://www.facebook.com/uraniumtwistingthedragon
www.genepoolproductions.com

A big thank you to The Titan Missile Museum, Yvonne and Chuck.
http://www.titanmissilemuseum.org/

Space footage courtesy of NASA

Title: Backspin Basketball Flies Off Dam
Runtime: 3:01
Date posted: 11 years ago
Description: How far would a basketball with backspin go?
Rotor wing experimental aircraft: https://youtu.be/Ra8y6gGotwY
E-ship 1: https://youtu.be/qJ7haGqXs_E
Corner kick by Kyle: https://youtu.be/YIPO3W081Hw

How Ridiculous World Record Basket: https://youtu.be/H9SF2YIKRY8

Title: Should This Lake Exist?
Runtime: 7:16
Date posted: 11 years ago
Description: The Salton Sea is the largest body of water in California, home to the second most diverse group of birds in America and it exists by accident.
Another great video on the Salton Sea: https://youtu.be/otIU6Py4K_A
I used archive from this video.

Music by Kevin MacLeod, www.incompetech.com ‘Mirage’, ‘Hyperfun’, ‘Marty Gots a Plan’, ‘Past the Edge’

Title: Chernobyl - What It's Like Today
Runtime: 8:15
Date posted: 11 years ago
Description: This is what a nuclear disaster area looks like.
Check out Audible: http://bit.ly/AudibleVe
Broadcast locations and times:

North America: PBS, July 28 & 29 @ 10pm ET / 9pm Central
Europe: ZDF/arte, July 31 @ 10pm
Australia: SBS, August 6, 13, 20 @ 8:30pm EST

Not broadcast in your country? Contact your local broadcaster and/or email www.genepoolproductions.com

Music by Kevin Macleod http://incompetech.com 'Come Play With Me' & 'Lost Frontier'

Title: Uranium: Twisting the Dragon's Tail
Runtime: 3:31
Date posted: 11 years ago
Description: Uranium is a unique element, used in research, medicine, space travel, and of course weapons.
Not broadcast in your country? Contact your local broadcaster and/or email www.genepoolproductions.com

Documentary Dates:
US: PBS, July 28 & 29 @ 10pm ET / 9pm Central
France & Germany: ZDF/arte July 31 @ 10pm
Australia: SBS, August 6, 13, 20 @ 8:30pm EST

If you're wondering where the title comes from...
“A number of ingenious experiments were devised to test the speed of the fission reaction, and the limit was pushed. But even so, I thought it would be very nice to go one step nearer to a real atomic explosion. Dick Feynman, who was present, started to chuckle and to say that this is just like tickling the tail of a sleeping dragon.”
Professor Otto R Frisch, January 1969 Physicist, the Manhattan Project.

The Truth About Toilet Swirl - Southern Hemisphere

Title: The Truth About Toilet Swirl - Southern Hemisphere
Runtime: 8:03
Date posted: 11 years ago
Description: SYNCHRONIZE WITH DESTIN’S VIDEO: http://bit.ly/NorthernSwirl
Both videos on one page (for desktop): http://bit.ly/ToiletSwirl
Subscribe to Smarter Every Day: http://bit.ly/SubscribeSED
Click to tweet: http://bit.ly/ToiletSwirlTWT

Some notes:
We each repeated the experiment 3 times, and got the same results every time. For those of you who might be skeptical, great! A right circular prismatic kiddie pool is only $10 and you can do the experiment for yourself at your latitude. There's really no reason you shouldn't do it for yourself.

Veritasium on Instagram: http://instagram.com/veritasium
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Title: Ice Spikes Explained
Runtime: 4:01
Date posted: 11 years ago
Description: Why do spikes form on ice cubes? Without them the world would be vastly different.
Awesome Jingle by Accent: http://bit.ly/AccentVe
Thanks to Prof. Stephen Morris from UofT: http://bit.ly/1GFANBE

Filmed in part by Martin Marek in Olomouc, Czech Republic

Time lapse of a growing ice spike by Lesley Hill, Russ Sampson and Edward Lozowski, with technical help by Kenny Lozowski.

Ice spike image by Dan and Lynn Wolaver: http://wolaver.org/log/09.11.29.htm

Concerned ice spike video by rocknut420: https://www.youtube.com/watch?v=GwM0we_t94c

Earth footage courtesy of NASA: https://www.youtube.com/watch?v=G4BPOEmugtM

Ice vase image by PgunnG: http://www.reddit.com/r/pics/comments/1voeqk/so_i_walked_outside_this_morning_and_found_this/

Second ice vase image by A K Haart: http://akhaart.blogspot.com/2015_01_01_archive.html

Title: Extended: Beaker Ball Balance Problem
Runtime: 1:58
Date posted: 11 years ago
Description: Watch this first! https://www.youtube.com/watch?v=QD3hbVG1yxM
Follow on Twitter: https://twitter.com/veritasium
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Special thanks to the Department of Earth, Planetary and Space Sciences, especially Gary for helping source the equipment and Raquel for filming.

Title: What I Wish I Knew When I Was Younger
Runtime: 8:51
Date posted: 11 years ago
Description: Learned helplessness can prevent people from achieving their goals, something I've experienced first hand.
Check out Audible: http://bit.ly/AudibleVe
More walk and talk videos: http://bit.ly/2Veritasium

Title: Explained: Beaker Ball Balance Problem
Runtime: 2:28
Date posted: 11 years ago
Description: This is the solution to: http://youtu.be/QD3hbVG1yxM
Watch this first!

Title: Beaker Ball Balance Problem
Runtime: 2:01
Date posted: 11 years ago
Description: Acrylic Ball: http://bit.ly/BBBacrylic
Ping-Pong Ball: http://bit.ly/BBBpingpong
Balanced: http://bit.ly/BBBbalanced

This problem has made the rounds on the internet but I felt it deserved a treatment like this.

Special thanks to Gary and the Department of Earth, Planetary and Space Sciences at UCLA, to the students for participating, to Ivy for helping me coordinate everything and to Raquel for filming.

Music by Kevin MacLeod, http://incompetech.com "Monkeys, Spinning Monkeys"

Title: How Do Chameleons Change Color?
Runtime: 5:42
Date posted: 11 years ago
Description: New research shows chameleons actively tune nano-crystals to change their color.
For a 10-day free trial, check out http://lynda.com/veritasium
Chameleon research in Nature Communications: http://bit.ly/1FacHO2
"Photonic Crystals Cause Active Colour Change in Chameleons"

This research was carried out by Jérémie Teyssier, Suzanne V. Saenko, Dirk van der Marel & Michel C. Milinkovitch at the University of Geneva Department of Quantum Matter Physics and the Laboratory of Artificial and Natural Evolution (LANE)

Original videos of chameleons are here:
https://www.youtube.com/watch?v=YIRiCwHlUd8
https://www.youtube.com/watch?v=XdQvtP8EKrM
https://www.youtube.com/watch?v=YSH7EmXFMac
https://www.youtube.com/watch?v=egwueh6wj1E

Additional details available at: http://www.lanevol.org/LANE/chameleon_colour_change.html
For correspondence: Michel C. Milinkovitch, Laboratory of Artificial & Natural Evolution (L...

Title: An Affordable 3D-Printed Arm
Runtime: 7:47
Date posted: 11 years ago
Description: Students at UCF are designing an inexpensive 3D printed arm for kids.
To find out more and to get involved, check out: http://office.tumblr.com

Big thanks to Microsoft and the Collective Project for introducing me to Albert and his amazing team. They are continuing to help people around the world one hand at a time and they could use your help.
Learn more and see how you can get involved by checking out The Collective Project on Tumblr, follow @MSONeNote on Twitter or head over to http://Onenote.com/collectiveproject

Title: An Astronaut's View of Earth
Runtime: 4:00
Date posted: 12 years ago
Description: What it's like to see the Earth from orbit.
Special thanks to Col. Chris Hadfield for chatting with me. http://chrishadfield.ca/

Space imagery courtesy of NASA and the ESA
http://eol.jsc.nasa.gov/
http://www.esa.int/spaceinvideos/Videos

Music by Kevin MacLeod "New Frontier" http://incompetech.com
And "Eureka" by Huma-Huma

Title: Do Cell Phones Cause Brain Tumors?
Runtime: 7:50
Date posted: 12 years ago
Description: Inspired by this article by Prof. Emily Oster: http://bit.ly/Cellcancer
Check out Audible: http://bit.ly/AudibleVe
Featuring Physics Girl: http://bit.ly/PhysGirl

Special thanks to Chris Gale and Physics Girl for filming this video.

Music by:
Amarante Music "One Last Time": http://bit.ly/VeAmarante
Kevin McLeod, Incompetech.com "Harlequin"

Quantum Entanglement & Spooky Action at a Distance

Title: Quantum Entanglement & Spooky Action at a Distance
Runtime: 9:16
Date posted: 12 years ago
Description: Does quantum entanglement make faster-than-light communication possible?
What is NOT random? http://bit.ly/NOTrandoVe
First, I know this video is not easy to understand. Thank you for taking the time to attempt to understand it. I've been working on this for over six months over which time my understanding has improved. Quantum entanglement and spooky action at a distance are still debated by professors of quantum physics (I know because I discussed this topic with two of them).

Does hidden information (called hidden variables by physicists) exist? If it does, the experiment violating Bell inequalities indicates that hidden variables must update faster than light - they would be considered 'non-local'. On the other hand if you don't consider the spins before you make the measurement then you could simply say hidden variables don't exist and whenever you measure spins in the same direction you always get opposite results, which makes sense since angular momentum...

Title: Would You Take This Bet?
Runtime: 7:19
Date posted: 12 years ago
Description: How much would it take for you to risk $10?
Check out Audible: http://bit.ly/AudibleVe
Can you solve this? http://bit.ly/248Ve
Regression to the mean: http://bit.ly/VeRTTM

Help translate Veritasium videos into other languages: http://veritasium.subtitl.us

Psychological literature shows that we are more sensitive to small losses and than small gains, with most people valuing a loss around 1.5-2.5 times as much as a gain. This means that we often turn down reasonable opportunities for fear of the loss. However over the course of our lives we will be exposed to many risks and opportunities and this invariably means that taking every small reasonable bet will leave us better off than saying no to all of them.

NOTE: The video is not saying to accept every bet, only those with reasonable odds (preferably in your favour), and those which if you lose would not cause significant financial or other damage. In those cases it is wise to be l...

Title: The Most Radioactive Places on Earth
Runtime: 11:17
Date posted: 12 years ago
Description: Who on Earth is exposed to the most ionizing radiation?
Check out Audible: http://bit.ly/AudibleVe
I'm filming a documentary for TV about how Uranium and radioactivity have shaped the modern world. It will be broadcast in mid-2015, details to come. The filming took me to the most radioactive places on Earth (and some places, which surprisingly aren't as radioactive as you'd think). Chernobyl and Fukushima were incredible to see as they present post-apocalyptic landscapes. I also visited nuclear power plants, research reactors, Marie Curie's institute, Einstein's apartment, nuclear medicine areas of hospitals, uranium mines, nuclear bomb sites, and interviewed numerous experts.

Notes about measuring radiation:
Sieverts are a measure of 'effective dose' - that means they measure the biological impact of the energy transferred to tissues from radiation.

Obviously I owe a debt to the fantastic chart made by xkcd, which inspired my visual approach...

Title: The Most Persistent Myth
Runtime: 7:23
Date posted: 12 years ago
Description: Many technologies have promised to revolutionize education, but so far none has. With that in mind, what could revolutionize education?
These ideas have been percolating since I wrote my PhD in physics education: https://ve42.co/phd
I have also discussed this topic with CGP Grey, whose view of the future of education differs significantly from mine: https://www.youtube.com/watch?v=7vsCAM17O-M

I think it is instructive that each new technology has appeared to be so transformative. You can imagine, for example, that motion pictures must have seemed like a revolutionary learning technology. After all they did revolutionize entertainment, yet failed to make significant inroads into the classroom. TV and video seem like a cheaper, scaled back film, but they too failed to live up to expectations. Now there is a glut of information and video on the internet so should we expect it to revolutionize education?

My view is that it won't, for two reasons: 1. Te...

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