View full lesson: It’s obvious that knowing more than one language can make certain things easier — like traveling or watching movies without subtitles. But are there other advantages to having a bilingual (or multilingual) brain? Mia Nacamulli details the three types of bilingual brains and shows how knowing more than one language keeps your brain healthy, complex and actively engaged. Lesson by Mia Nacamulli, animation by TED-Ed.


How can many stupid things combine to form smart things? How can proteins become living cells? How become lots of ants a colony? What is emergence? This video was made possible by a donation by the Templeton World Charity Foundation. A huge thanks to them for their support and help over the last year! Kurzgesagt Newsletter: Support us on Patreon so we can make more videos (and get cool stuff in return): Kurzgesagt merch: The MUSIC of the video: Soundcloud: Bandcamp: Facebook: THANKS A LOT TO OUR LOVELY PATRONS FOR SUPPORTING US: Phil Winterleitner, David Blayney, Stuart Dunlop, Jordi Riera, James Lamberg, Alexander Fortin, Philipp Hiestand, Shalyn Thong, Elizabeth Meisterling, Tyler Graybill, Felix Diercks, Carson Hynes, Julian Maurel, Jacek Złydach, Paul Lenoue, Stephen Murillo, Justin Fowler, Michael Andregg, Justin Stocking, Andrew, Michael Altarriba, Andy Holaday, Karel Hulec, CJ Canton, Cédric Coulombe, Radomir Kaleta, J K, Rada199, Claudio Fan, etti, Zen, Alen Kecic, Patrick Preuss, deMat01, Erickson Phoenix, iamBadgers, Tom Motto, William Asheshov, Chris O'Hara, Lobo Olsson, Zachary Hall, Donis A., Ismael, The_CJ, Michal Janček, Lars Midgaard, ElRichMC, Mariann Nagy Help us caption & translate this video! Emergence – How Stupid Things Become Smart Together


View full lesson: In the United States, it’s estimated that 30 percent of adults and 66 percent of adolescents are regularly sleep-deprived. This isn’t just a minor inconvenience: staying awake can cause serious bodily harm. Claudia Aguirre shows what happens to your body and brain when you skip sleep. Lesson by Claudia Aguirre, animation by TED-Ed.


The Ocean is a deep and scary world that is completely removed from most of our lives. In this video I explore just how deep the ocean actually is while discussing some of the strange life down there. and other just plain weird and odd things about the ocean. Feel free to leave any comments and share what you found interesting, or anything else you think that I should have added! Music is by Ross Bugden, seriously, his channel is great. Song used is called Something Wicked Link to Ross's channel: Please Subscribe: Follow me on Facebook: Follow me on Twitter: Reddit: Videos explaining things. Mostly over topics like history, geography, economics and science. We believe that the world is a wonderfully fascinating place, and you can find wonder anywhere you look. That is what our videos attempt to convey. Currently, we try our best to release one video every two weeks. Bear with us :) Business Email: thereallifelore@gmail.com


View full lesson: Narcissism isn’t just a personality type that shows up in advice columns; it’s actually a set of traits classified and studied by psychologists. But what causes it? And can narcissists improve on their negative traits? W. Keith Campbell describes the psychology behind the elevated and sometimes detrimental self-involvement of narcissists. Lesson by W. Keith Campbell, animation by TOGETHER.


What if we could stop aging forever? Thanks so much for help with the video to Lifespan.io. Check them out and learn how you can get active here: Lifespan.io facebook.com/LifespanIO Kurzgesagt Newsletter: Support us on Patreon so we can make more videos (and get cool stuff in return): Kurzgesagt merch: The MUSIC of the video: Soundcloud: Bandcamp: Facebook: THANKS A LOT TO OUR LOVELY PATRONS FOR SUPPORTING US: Phil Winterleitner, David Blayney, Stuart Dunlop, Jordi Riera, James Lamberg, Alexander Fortin, Philipp Hiestand, Shalyn Thong, Elizabeth Meisterling, Tyler Graybill, Felix Diercks, Carson Hynes, Julian Maurel, Jacek Złydach, Paul Lenoue, Stephen Murillo, Justin Fowler, Michael Andregg, Justin Stocking, Andrew, Michael Altarriba, Andy Holaday, Karel Hulec, CJ Canton, Cédric Coulombe, Radomir Kaleta, J K, Rada199, Claudio Fan, etti, Zen, Alen Kecic, Patrick Preuss, deMat01, Erickson Phoenix, iamBadgers, Tom Motto, William Asheshov, Chris O'Hara, Lobo Olsson, Zachary Hall, Donis A., Ismael, The_CJ, Michal Janček, Lars Midgaard, ElRichMC, Mariann Nagy Help us caption & translate this video! How to Cure Aging – During Your Lifetime?


Assistant Professor Chao-Lin Kuo surprises Professor Andrei Linde with evidence that supports cosmic inflation theory. The discovery, made by Kuo and his colleagues at the BICEP2 experiment, represents the first images of gravitational waves, or ripples in space-time. These waves have been described as the first tremors of the Big Bang. Producer: Bjorn Carey Video: Kurt Hickman For more on the discovery, see:


View full lesson: Water is essentially everywhere in our world, and the average human is composed of between 55 and 60% water. So what role does water play in our bodies, and how much do we actually need to drink to stay healthy? Mia Nacamulli details the health benefits of hydration. Lesson by Mia Nacamulli, animation by Chris Bishop.


Every second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed and sacrifices itself for your survival. Without it you would die in no time. This sounds simple but the reality is complex, beautiful and just awesome. An animation of the immune system. We are thinking of making an App for tablets out of this video. Would you like that? Did you think the visual system we developed worked? Feedback is much appreciated! You can get the MUSIC of the video here: Videos, explaining things. Like evolution, time, space, global energy or our existence in this strange universe. We are a team of designers, journalists and musicians who want to make science look beautiful. Because it is beautiful. Visit us on our Website, Twitter, Facebook, Patreon or Behance to say hi! THANKS A LOT TO OUR PATRONS FOR SUPPORTING US: Justin Degenaars jordan gardner Derek Loa Jeroen Koerts Carlos Campuzano Benoît Graham Scott Zell Tanya Smirnova Giovanna Cardoso Patrick Eyrich Alex Kaplan Chris Dudley Deanie Adams Caroline Andrewes Dean Herbert Rory Bennett Adam Primaeros Rasmus Lind Daniel O.C.L. Dylan Hoffer Maxl Heitsch Eliud Vasquez Neve Laughery Ghitea Andrei Paul Alexander Law McCormack Heavens Eduardo Barbosa Sara Shah Dario Pagnia Chris Doughty Evan Low Stephen Morse Bünyamin Tetik Romano Casellini dante harper Justin T. Greeny Liu Siddharth Bajaj Valerie Brunet Jen Tim Peter Wagner Yousif Efe Melih Polat Gaëtan Maximilian Ritter Charles Kuang Balazs-Hegedus Jozsef Petr Pilař Finn Edwards Thomas Lee Daniel Fuchs Pascal B. Seona Tea Pol Lutgen Roman Zolotorevich Daniel Jonathan Velazquez Gore Jeff Church Churchill Randy Knapp Brandon Liu Peter Žnuderl Swarochisha Kandregula Javier de la Garza Jan Lukas Lehmann somersault18:24 Why you are still alive - The immune system explained Help us caption & translate this video!


What do you know about the Moons of Mars? Nothing? They are super cool (and strange), promise. Moon May! One video about cool moon stuff every Mo(o)nday in May. Next: Plutos five Moons explained. Videos, explaining things. Like evolution, time, space, global energy or our existence in this strange universe. We are a team of designers, journalists and musicians who want to make science look beautiful. Because it is beautiful. Visit us on our Website, Twitter, Facebook, Patreon or Behance to say hi! THANKS A LOT TO OUR PATRONS FOR SUPPORTING US! The Moons of Mars explained -- Phobos & Deimos Help us caption & translate this video!


Everything will end. Even the universe. But in a future so far away that it defies description, there will still be light and therefore a chance for life. It will be around White Dwarfs, the corpses of stars. But even they will fade one day. Check out Epic Mountain Music: Support us on Patreon so we can make more videos (and get cool stuff in return): Kurzgesagt merch here: The music of the video here: Soundcloud: Bandcamp: Facebook: THANKS A LOT TO OUR LOVELY PATRONS FOR SUPPORTING US: Whangam, Sanghyun Park, Brian Boerner, iffn, Michael Andersen, Patrick Haugh, Stephan Broek, Zach Keith, Shaun, Danny Lo, Andre Szarmach, YL Kang, Maaike, vivian james, Kevin LI, darkmage0707077, Teruki Ito, Tovi Sonnenberg, Chandan Grayson-Pattar, Robert Holloway, oscar schreuder, Toni Tadolini, Dakota Vadimsky, Sapphire, Jon Adams, Matt, Gavin Kirby, ANIRUDH PATEL, Alfonso Ortiz, Adam Wiggins, Arvid Tunvall, Stefan Lˆrwald, Sean Fujiwara, ”lafur Reynir, Rayan Mestiri, Jason Heath, Shane, Michael Odom, Joost Uitdehaag, Bradley Thomas, Vladimir Fleurima, Ivan Kanev, Juan Marchetto, James Gemelli, Jamie Denysek, Zbigniew, Rolandas Brazauskas, Skylar Dodds, Duncan Lewis, Ivan Avdeev, Marc Watine, Mitchell Hulick, Christopher Meyers, Gavin Sellers, Maggie Siu, ANTIcarrot, Dan Buchoff, Daniel Ploch, Gabriele Michieletto, Sean Boone, Hayden Froehlich, Jakub Furicka, Snakes!, Benjamin Wood, Alexander Vocaet, Beth Notturno, John Wiggains, Guy Shtainer, Ursa Oannes, Patrick Duthie, Ami Noo, Ryan Dougherty, David Darko, Jun, Jon Tidd, Zach Smith, Susanne Seibt, Zane Bacon, Thibault Siouffi, MF RUCKUS, Jonathan Tseng, Zach Donnell, Andrew Cafourek, Mitchel Laihinen, Ginette Ng, adam lenk, Jay Buys, Jaben Cargman, Tizian Danzinger, Nick Hutcherson, Julia Robak, James Seckelman, Hristo Dimitrov, Gary Wong, DR EBERLE, Janico Greifenberg, Bobby Biswal, David Reddy, Aykin «akaloz, Steve Downing, Andy Carlson, Jesse Richards, Jason Michaels, Dillon Laster, Mikel Serralde Help us caption & translate this video! The Last Light Before Eternal Darkness – White Dwarfs & Black Dwarfs


Check out our Patreon page: View full lesson: How good are you with money? What about reading people’s emotions? How healthy are you, compared to other people you know? Knowing how our skills stack up against others is useful in many ways. But psychological research suggests that we’re not very good at evaluating ourselves accurately. In fact, we frequently overestimate our own abilities. David Dunning describes the Dunning-Kruger effect. Lesson by David Dunning, directed by Wednesday Studio, music and sound by Tom Drew. Thank you so much to our patrons for your support! Without you this video would not be possible! Juan, Jordan Tang, Kent Logan, Alexandra Panzer, Jen, Ellen Spertus, Ryan Mehendale, Mary Sawyer, Scott Gass, Ruth Fang, Mayank Kaul, Hazel Lam, Tan YH, Be Owusu, Samuel Doerle, David Rosario, Katie Winchester, Michel Reyes, Dominik Kugelmann, Siamak H, Stephen A. Wilson, Manav Parmar, Jhiya Brooks, David Lucsanyi, Querida Owens.


Rita Pierson, a teacher for 40 years, once heard a colleague say, They don't pay me to like the kids. Her response: Kids don't learn from people they don't like.' A rousing call to educators to believe in their students and actually connect with them on a real, human, personal level. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and much more. Find closed captions and translated subtitles in many languages at Follow TED news on Twitter: Like TED on Facebook: Subscribe to our channel:


The town of Staufen, in the south-west of Germany, has a problem: a drilling operation in 2007 that went very wrong. Half a metre of movement might not sound like much, but in this town, that's enough for the buildings to crack and fall apart. Thanks to Constantijn Crijnen for both suggesting the video and being the local expert! His channel's here: And here's an in-depth academic paper explaining why and how it all happened, in far more detail than would work in a YouTube video: I'm at on Twitter at on Facebook at and on Snapchat and Instagram as tomscottgo


In 2015 the bees are still dying in masses. Which at first seems not very important until you realize that one third of all food humans consume would disappear with them. Millions could starve. The foes bees face are truly horrifying – some are a direct consequence of human greed. We need to help our small buzzing friends or we will face extremely unpleasant consequences. Check out THE NOVA PROJECT: You can make subtitles for the video here: Videos, explaining things. Like evolution, time, space, global energy or our existence in this strange universe. We are a team of designers, journalists and musicians who want to make science look beautiful. Because it is beautiful. You can get the MUSIC for the video here: Visit us on our Website, Twitter, Facebook, Patreon or Behance to say hi! THANKS A LOT TO OUR LOVELY PATRONS FOR SUPPORTING US: Nathan Ardoin, Collin Rudkin, Karantor, Wesley Alexander, Alpaca Belle, william töyrä, Jasen Tamiia, Heeyun Chung, Ethan Wriston, Hoi-Fung, David Wilson, Morgan Rigby, Harrison Bross, Jacob Ash, lukas hulting, Katharine Foster, Nick Ingenito, Adithi Pandit, David Walsh, Oliver, gianmaria nicolis, Swaroop Narayan Manjunath, beeweasd, Giacomo Bersani, Evan Wilson, Matthew Fey, Nicholas Romano, Franco, Andrew Rehkopf, Tyler O'Connor, Fabi, Wait But Why, Brian, Carlos Rubio Abujas, Weronika Falkowska, Aaron, Carlos Carrasco, Christopher Setiobudi, Callum Howells Luke Kutschinski, Geoffrey Lee, Brian David Henderson, Sébastien Blanchet, Stefan Ghizelea, Chris Smith, Sofian Madi, Jay Kidd, James Khoo, Eugene Foss, Spencer Clark, Robert Varasciuc, THEGURUDK, Erika Marks, Aurelien Gouny, Romi Kuntsman, Harry, Nicolas Huguet-Latour, Simon Thibodeau, Michael, Marc Dumont, Yeonghoon Park, Samuel Pacheco, Dave Hng, Mikkel Jespersen, Jerome Dimaano, Danylo Bozhagora, ryandelsol, Anton Sterenborg, Mason Y, Simon Welker, Demian Rosenblatt, Julius Hofman, Richard Harrison, Daniel P, Reinaldo Mizutani, Emil, A Patron, Þorsteinn Sævar Hjartarson, Davy Corbett, Veselin Kostadinov, Darth Hawke The death of bees explained – Colony Collapse disorder Help us caption & translate this video!


Never miss a talk! SUBSCRIBE to the TEDx channel: Chris Lonsdale is Managing Director of Chris Lonsdale & Associates, a company established to catalyse breakthrough performance for individuals and senior teams. In addition, he has also developed a unique and integrated approach to learning that gives people the means to acquire language or complex technical knowledge in short periods of time. Jan-21-2014 Update. The video transcripts are now available via the following links: English Only: English + Chinese Translation: In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)


Mister Rogers remixed by John D. Boswell for PBS Digital Studios. Please support your local PBS station: MP3 version now available! (Headphones highly recommended!) When we discovered video mash-up artist John D. Boswell, aka melodysheep, on YouTube, we immediately wanted to work together. Turns out that he is a huge Mister Rogers Neighborhood fan, and was thrilled at the chance to pay tribute to one of our heroes. Both PBS and the Fred Rogers Company hope you like John's celebration of Fred Rogers' message. This is the first in a series of PBS icons remixed. Many thanks to the folks at the Fred Rogers Company for their support. More from John D. Boswell (melodysheep): Subscribe to PBS Digital Studios: On Twitter: @pbsds


How do you measure big forces accurately? By calibrating your force transducer on the world's biggest weight - 1,000,000 pounds of force. This machine ensures planes don't break apart, jets provide required thrust, and rockets make it to their destination. Thanks to the people at NIST for showing me around: Rick Seifarth and Ben Stein. Animations here are by Sean Kelley and additional footage by Jennifer Lauren Lee. Special thanks to Patreon Supporters: Tony Fadell, Donal Botkin, Jeff Straathof, Zach Mueller, Ron Neal, Nathan Hansen Support Veritasium on Patreon: Before visiting NIST in Washington DC I had no idea machines like this existed. Surely there's an accurate way to measure forces without creating such a huge known force?! Nope. This appears to be the best way, with a stack of 20 x 50,000 lb masses creating a maximum force of 4.45 MN or 1,000,000 pounds of force. I also wouldn't have thought about all the corrections that need applying - for example buoyancy subtracts about 125 pounds from the weight of the stack. Plus the local gravitational field strength must be taken into account. And, the gravitational field varies below grade. All of this must be taken into account in order to limit uncertainty to just five parts per million (.0005%) Music from The Epidemic Sound Serene Story 2


Check out our Patreon page: View full lesson: Before the creation of humanity, the Greek gods won a great battle against a race of giants called the Titans. Most Titans were destroyed or driven to the eternal hell of Tartarus. But the Titan Prometheus, whose name means foresight, persuaded his brother Epimetheus to fight with him on the side of the Gods. Iseult Gillespie shares the myth of Prometheus. Lesson by Iseult Gillespie, directed by Léa Krawczyk. Thank you so much to our patrons for your support! Without you this video would not be possible. Yalda A., Susan Herder, Andrew Bosco, Craig Sheldon, Javier Aldavaz, Bruno Pinho, Rishi Pasham, Nick Johnson, Alex Kongkeo, Levi Cook, Peter Koebel, Misaki Sato, Runarm, Maxi Kobi Einy, Ilya Bondarik, Darren Toh, Bozhidar Karaargirov, Boytsov Ilya, Marc Veale, Rodrigo Carballo, Humberto A OjedaGomez, Daniel Day, SookKwan Loong, Jhuval, Nik Maier.


Download a free audiobook and support TED-Ed's nonprofit mission: Check out Siddhartha Mukherjee's The Emperor of All Maladies : View full lesson: We’ve harnessed electricity, sequenced the human genome, and eradicated smallpox. But after billions of dollars in research, we haven’t found a solution for a disease that affects more than 14 million people and their families at any given time. Why is it so difficult to cure cancer? Kyuson Yun explains the challenges. Lesson by Kyuson Yun, directed by Artrake Studio. Check out our Patreon page: Thank you so much to our patrons for your support! Without you this video would not be possible. Mukamik, Tushar Sharma, Dmitry Neverov, Mohammad Khory, Goh Xiang Ting Diana, Umar Farooq, Kevin Wong, Activated Classroom Teaching, Constantin Salagor, Daniel Mardale, Monica Grace Ward, Dawn Jordan, Yanira Santamaria, Prasanth Mathialagan, Savannah Scheelings, Yalda A., Susan Herder, Be Owusu, Samuel Doerle, David Rosario.


View full lesson: The DNA in just one of your cells gets damaged tens of thousands of times per day. Because DNA provides the blueprint for the proteins your cells need to function, this damage can cause serious issues—including cancer. Fortunately, your cells have ways of fixing most of these problems, most of the time. Monica Menesini details the processes of DNA damage and repair. Lesson by Monica Menesini, animation by FOX Animation Domination High-Def.


These are the molecular machines inside your body that make cell division possible. Animation by Drew Berry at the Walter and Eliza Hall Institute of Medical Research. Special thanks to Patreon supporters: Joshua Abenir, Tony Fadell, Donal Botkin, Jeff Straathof, Zach Mueller, Ron Neal, Nathan Hansen Support Veritasium on Patreon: Every day in an adult human roughly 50-70 billion of your cells die. They may be damaged, stressed, or just plain old - this is normal, in fact it’s called programmed cell death. To make up for that loss, right now, inside your body, billions of cells are dividing, creating new cells. And cell division, also called mitosis, requires an army of tiny molecular machines.DNA is a good place to start - the double helix molecule that we always talk about. This is a scientifically accurate depiction of DNA. If you unwind the two strands you can see that each has a sugar phosphate backbone connected to the sequence of nucleic acid base pairs, known by the letters A,T,G, and C. Now the strands run in opposite directions, which is important when you go to copy DNA. Copying DNA is one of the first steps in cell division. Here the two strands of DNA are being unwound and separated by the tiny blue molecular machine called helicase. It literally spins as fast as a jet engine! The strand of DNA on the right has its complimentary strand assembled continuously but the other strand is more complicated because it runs in the opposite direction. So it must be looped out with its compliment strand assembled in reverse, section by section. At the end of this process you have two identical DNA molecules, each one a few centimeters long but just a couple nanometers wide. To prevent the DNA from becoming a tangled mess, it is wrapped around proteins called a histones, forming a nucleosome. These nucleosomes are bundled together into a fiber known as chromatin, which is further looped and coiled to form a chromosome, one of the largest molecular structures in your body. You can actually see chromosomes under a microscope in dividing cells - only then do they take on their characteristic shape. The process of dividing the cell takes around an hour in mammals. This footage is from a time lapse. You can see how the chromosomes line up on the equator of the cell. When everything is right they are pulled apart into the two new daughter cells, each one containing an identical copy of DNA. As simple as it looks, this process is incredibly complicated and requires even more fascinating molecular machines to accomplish it. Let’s look at a single chromosome. One chromosome consists of two sausage-shaped chromatids - containing the identical copies of DNA made earlier. Each chromatid is attached to microtubule fibers, which guide and help align them in the correct position. The microtubules are connected to the chromatid at the kinetochore, here colored red. The kinetochore consists of hundreds of proteins working together to achieve multiple objectives - it’s one of the most sophisticated molecular mechanisms inside your body. The kinetochore is central to the successful separation of the chromatids. It creates a dynamic connection between the chromosome and the microtubules. For a reason no one’s yet been able to figure out, the microtubules are constantly being built at one end and deconstructed at the other. While the chromosome is still getting ready, the kinetochore sends out a chemical stop signal to the rest of the cell, shown here by the red molecules, basically saying this chromosome is not yet ready to divide The kinetochore also mechanically senses tension. When the tension is just right and the position and attachment are correct all the proteins get ready, shown here by turning green. At this point the stop signal broadcasting system is not switched off. Instead it is literally carried away from the kinetochore down the microtubules by a dynein motor. This is really what it looks like. It has long ‘legs’ so it can avoid obstacles and step over the kinesins, molecular motors walking the other direction. Studio filming by Raquel Nuno


At the headquarters of Cloudflare, in San Francisco, there's a wall of lava lamps: the Entropy Wall. They're used to generate random numbers and keep a good bit of the internet secure: here's how. Thanks to the team at Cloudflare - this is not a sponsored video, they just had interesting lava lamps! There's a technical rundown of the system on their blog here: Edited by Michelle Martin, @mrsmmartin I'm at on Twitter at on Facebook at and on Snapchat and Instagram as tomscottgo


Discuss this video: Music: Watch the other part: - Mark Govea - Wenhao Nie - Thomas J Miller Jr MD - dedla - Robert Kunz - Daniel Slater - Saki Comandao - PervertedThomas - John Buchan - Christian Cooper - Michael Little - Ripta Pasay - Andres Villacres - rictic - Ian - Faust Fairbrook - Jason Lewandowski - Michael Mrozek - Jordan LeDoux - Chris Woodall - Nevin Spoljaric - Richard Jenkins - Chris Chapin - ChoiceMechanicalDenver.com - سليمان العقل - Tony DiLascio - Chang Wang - Kozo Ota - Tod Kurt - Phil Gardner - Jordan Melville - Martin - Steven Grimm - Joe Pantry - Benjamin Morrison - Amandeep Hayer - Splendide - Ron Bowes - Tómas Árni Jónasson - Mikko - Derek Bonner - Derek Jackson - Orbit_Junkie - Colin Millions - Muhammad Shifaz - Jim - Mark Elders - Glennon B. Nelson IV - Chris Harshman - Jose Reyes - Guillermo - Veronica Peshterianu - Paul Tomblin - Travis Wichert - chrysilis - Ryan E Manning - Erik Parasiuk - Rhys Parry - Maarten van der Blij - Kevin Anderson - Kyle Bloom - David - Ryan Nielsen - Esteban Santana Santana - Dag Viggo Lokøen - Tristan Watts-Willis - John Rogers - Leon - ken mcfarlane - Brandon Callender - Timothy Moran - Peter Lomax - Emil - Tijmen van Dien - ShiroiYami - Alex Schuldberg - Ryan Constantin - Bear - Jacob Ostling - Solon Carter - Joel Wunderle - Rescla - GhostDivision - Andrew Proue - Tor Henrik Lehne - David Palomares - Cas Eliëns - Freddi Hørlyck - David Michaels - Ernesto Jimenez - Linh - Osric Lord-Williams - Ryan - Maxime Zielony - Lachlan Holmes - John Lee - Ian N Riopel - AUFFRAY Clement - Ilan - John Bevan - Timothy Basanov Music by:


View full lesson: Nostalgia was once considered an illness confined to specific groups of people. Today, people all over the world report experiencing and enjoying nostalgia. But how does nostalgia work? And is it healthy? Clay Routledge details the way our understanding of nostalgia has changed since the term was first coined in the late 17th century. Lesson by Clay Routledge, animation by Anton Bogaty.


A head-vaporizing laser with a perfect wavelength detecting sub-proton space-time ripples. Huge thanks to Prof Rana Adhikari and LIGO: Here's how he felt when he learned about the first ever detection: Thanks to Patreon supporters: Nathan Hansen, Donal Botkin, Tony Fadell, Saeed Alghamdi, Zach Mueller, Ron Neal Support Veritasium on Patreon: 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 were created not for aesthetic joy but because when you're trying to measure wiggles that are a fraction the width of a proton, a rough mirror surface simply won't do. Filmed by Daniel Joseph Files Music by Kevin MacLeod, Black Vortex (appropriately named) Music licensed from Epidemic Sound Observations 2 (also appropriately named)


View full lesson: Like many heroes of Greek myths, the philosopher Hippasus was rumored to have been mortally punished by the gods. But what was his crime? Did he murder guests or disrupt a sacred ritual? No, Hippasus's transgression was mathematically proving the hitherto unprovable. Ganesh Pai describes the history and math behind irrational numbers. Lesson by Ganesh Pai, animation by Anton Trofimov.


View full lesson: The constant thud underneath your feet. The constrained space. The monotony of going nowhere fast. Running on a treadmill can certainly feel like torture, but did you know it was originally used for that very purpose? Conor Heffernan details the dark and twisted history of the treadmill. Lesson by Conor Heffernan, animation by Yukai Du.


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: Sign up for the mailing list: Pitch drop experiment: Thanks to Meg Rosenburg for scripting and animation, Raquel Nuno for filming and Aaron White for script consultation.


Designer babies, the end of diseases, genetically modified humans that never age. Outrageous things that used to be science fiction are suddenly becoming reality. The only thing we know for sure is that things will change irreversibly. Support us on Patreon so we can make more videos (and get cool stuff in return): Kurzgesagt merch here: Get the music of the video here: soundcloud: bandcamp: Thanks to Volker Henn, James Gurney and (prefers anonymity) for help with this video! THANKS A LOT TO OUR LOVELY PATRONS FOR SUPPORTING US: Jeffrey Schneider, Konstantin Kaganovich, Tom Leiser, Archie Castillo, Russell Eishard, Ben Kershaw, Marius Stollen, Henry Bowman, Ben Johns, Bogdan Radu, Sam Toland, Pierre Thalamy, Christopher Morgan, Rocks Arent People, Ross Devereux, Pascal Michaud, Derek DuBreuil, Sofia Quintero, Robert Swiniarski, Merkt Kızılırmak, Michelle Rowley, Andy Dong, Saphir Patel, Harris Rotto, Thomas Huzij, Ryan James Burke, NTRX, Chaz Lewis, Amir Resali, The War on Stupid, John Pestana, Lucien Delbert, iaDRM, Jacob Edwards, Lauritz Klaus, Jason Hunt, Marcus : ), Taylor Lau, Rhett H Eisenberg, Mr.Z, Jeremy Dumet, Fatman13, Kasturi Raghavan, Kousora, Rich Sekmistrz, Mozart Peter, Gaby Germanos, Andreas Hertle, Alena Vlachova, Zdravko Šašek SOURCES AND FURTHER READING: The best book we read about the topic: GMO Sapiens (affiliate link, we get a cut if buy the book!) – Good Overview by Wired: –timeline of computer development: – Selective breeding: – DNA: – Radiation research: – inserting DNA snippets into organisms: – First genetically modified animal: – First GM patent: – chemicals produced by GMOs: – Flavr Savr Tomato: – First Human Engineering: – glowing fish: – CRISPR: – HIV cut from cells and rats with CRISPR: – first human CRISPR trials fighting cancer: first human CRISPR trial approved by Chinese for August 2016: – genetic diseases: – pregnancies with Down Syndrome terminated: ( 1999 European study) – CRISPR and aging: Help us caption & translate this video!


Some quick links to a few of the materials I used: [✓] 12 v transformer (3 amp): [✓] 3 position switch: [✓] Push on/off 1000w dimmer switch: Try Audible with a free audiobook. No Shipping, No Waiting. Try instantly at Thanks Audible. . Now onto making the Styro-Slicer ! This homemade, foam slicer makes 3D puzzles, foam swords, guns, and traces any other styrofoam shape with an incredible amount of precision and control. Endcard Links: Arc Welder: Rocket Rifle: Bitty-Q: Mini Arc Furnace: Next Video: Gas Blaster Propane Torch: Previous Video: The Hot-Wire Styro-Slicer : See What Else I’m Up To: Instagram: Facebook:  Pinterest:  Business Inquiries: For business and sponsorship inquiries please contact us directly: FTC Disclaimer: This video was sponsored by Audible.com. ( ad) Try Audible with a free audiobook. No Shipping, No Waiting. Try instantly at WARNING: The electrified wire of the Styro-Slicer can reach temperatures well above 1,000ºF, which can cause burns, and potentially start fires. This project should only be attempted with adequate knowledge and training, and under constant adult supervision. Have fun, but always think ahead, and remember that any project you try is at YOUR OWN RISK. Music By: TheFatRat - Licensed by Tasty Song Title: Xenogenesis Music Video: . Label Channel: Project Inspired By: Wire foam cutting machines for sale on the internet, but too pricy to actually consider paying for. Project History & More Info: This is the final video on the Styro-Slicer itself. A lot of people have been asking why I made 2 Quick Clips, and 2 Projects for this one system. And I'm happy to explain. The first Quick Clip was to introduce the styro-slicer, and show what it could do. It introduced the concept that it exists, that it could make styrofoam swords, guns, and airplanes, and that it compacts back together for storage. The project video that followed () was a fully produced tutorial of how to use it. It showed all of it's different features and operation, and took over 5 minutes to demonstrate. So that required a video of its own. The 2nd Quick Clip was to preview the styro-slicer tutorial, and I put enough information in there that savvy viewers could figure out how to build it before the tutorial. And apparently some people did. This video is the final installment, showing step by step how to make the styro-slicer. Also with this tutorial being 3-4 times longer than regular videos, it takes 3-4 times longer to produce, and since I try to put out a video posted randomly, the Quick Clips gave me a chance to show the project, and just enough breathing room to get the tutorial produced and released. This video is all about making the Styro-Slicer, but doesn't get into great detail about how to use it. Although the build is fairly simple, there is a sizable materials list and the video can seem quite technical. But I promise that if you take it one step at a time, you'll get it finished. I made 3 previous prototypes of this model. Each one giving me new experience and insight into what I wanted the finished product to be able to do. The ultimate success came when the design for compact storage actually worked out, and the assembly could compact together for quick storage. I am still very excited and proud about that feature :) I took a lot of inspiration from different pictures on Google image searches, of professional foam cutting machines. I was inspired by different features, like cutting at angles, and adjusting the temperatures, and wanted to replicate those features. My first prototype took just over 15 minutes to put together, and used a scrap 2 x4 piece of wood, a piece of picture hanging wire, and was powered by a transformer I ripped out of an old stereo. It worked great, but it was also really crude and I didn't have time to make a nice version for my metal casting videos, so I never did mention it until recently. But I always had intentions to fully develop it.


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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: I used archive from this video. Music by Kevin MacLeod, ‘Mirage’, ‘Hyperfun’, ‘Marty Gots a Plan’, ‘Past the Edge’


We are so happy to give young pups like Rosie a chance at a happy healthy life with loving adopted parents. Vet Ranch Shirts!!! RanchMerch.com If you are interested in helping with animals in the future, please visit our partners at to learn more and to donate if you would like. Abandoned Pet Project is a 501(c)(3), tax exempt non-profit organization. There is no shortage of pets in need, so every donation means more lives we can positively change. Music: Falling (Ft.eSoreni) by SappheirosMusic


Help support RealLifeLore on Patreon: The world has a lot of strange borders, and in this episode we look at some of the strangest ones yet: enclaves and exclaves. Please Subscribe: Music is by The Solid Ocean, please check out their YouTube here! Facebook: Twitter: Reddit: Subreddit is moderated by Oliver Bourdouxhe Special thanks to Patrons: Joshua Tavares, Wesley Jackson and Matthew Mikulka. Videos explaining things. Mostly over topics like history, geography, economics and science. We believe that the world is a wonderfully fascinating place, and you can find wonder anywhere you look. That is what our videos attempt to convey. Currently, we try our best to release one video every week. Bear with us :) Business Email: thereallifelore@gmail.com


Student guides Karen and Christian lead you on a whirlwind tour of the Stanford campus. The tour begins at Stanford Stadium, home to Cardinal football, and ends at the Stanford Visitor Center. Along they way you'll see the Quad, the Dish, and even do a little fountain hopping. This video was originally produced for the launch of the PAC12 Network, Stanford University: Stanford University Channel on YouTube:


View full lesson: Our early ancestors relied on lightning to cause forest fires, from which they could collect coals and burning sticks to help them cook food and clear land. Yet, it wasn’t just humans who benefited from these natural phenomena. Even as they destroyed trees, fires also helped the forests themselves. Jim Schulz outlines the benefits of wildfire. Lesson by Jim Schulz, animation by Provincia Studio.


This video was done in a collaboration with Real Engineering. Please go ahead and check out his wonderful video next here! Tanks come in all shapes and sizes, but some designs are a little more insane than others. In this video we look at the Char 2C, K Wagen, Panzer VIII Maus and the Landkreuzer P1000 Ratte, and take you on a tour of the largest tanks ever designed in history. Please Subscribe: Facebook: Twitter: Reddit: Subreddit is moderated by Oliver Bourdouxhe Special thanks to Patrons: Joshua Tavares, Wesley Jackson and Matthew Mikulka. Videos explaining things. Mostly over topics like history, geography, economics and science. We believe that the world is a wonderfully fascinating place, and you can find wonder anywhere you look. That is what our videos attempt to convey. Currently, we try our best to release one video every week. Bear with us :) Business Email: thereallifelore@gmail.com


An atom is mostly empty space, but empty space is mostly not empty. The reason it looks empty is because electrons and photons don't interact with the stuff that is there, quark and gluon field fluctuations. It actually takes energy to clear out space and make a true 'empty' vacuum. This seems incredibly counter-intuitive but we can make an analogy to a permanent magnet. When at low energies, like at room temperature, there is a magnetic field around the magnet due to the alignment of all the magnetic moments of the atoms. But if you add some energy to it by heating it, the particles gain thermal energy, which above the Curie temperature makes their magnetic moments randomly oriented and hence destroying the magnetic field. So in this case energy is needed to clear out the field, just as in the quantum vacuum. Special thanks to Professor Derek Leinweber, find out more about his research here:


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View full lesson: When we hear the word radiation, it’s tempting to picture huge explosions and frightening mutations. But that’s not the full story — radiation also applies to rainbows and a doctor examining an X-ray. So what is it, really, and how much should we worry about its effects? Matt Anticole describes the different types of radiation. Lesson by Matt Anticole, animation by Tinmouse Animation Studio.


Sign up for a 30 day free trial with the Great Courses Plus by clicking here! Volcanoes get pretty strong, but strong enough to destroy the world? That kind of depends on what you think the end of the world means. Please Subscribe: Music is by Brandon Maahs. Check out his website and music by clicking this link: Facebook: Twitter: Reddit: Subreddit is moderated by Oliver Bourdouxhe Special thanks to Patrons: Joshua Tavares, Wesley Jackson and Matthew Mikulka. Videos explaining things. Mostly over topics like history, geography, economics and science. We believe that the world is a wonderfully fascinating place, and you can find wonder anywhere you look. That is what our videos attempt to convey. Currently, we try our best to release one video every two weeks. Bear with us :) Business Email: thereallifelore@gmail.com


Check out our Patreon page: View full lesson: Today, surfing is a multi-billion-dollar global industry, with tens of millions of enthusiasts worldwide. For some it’s a serious sport; for others, just a way to let loose. But despite its casual association with fun and sun, surfing has a richer and deeper history than many realize. Scott Laderman shares the hidden history of surfing. Lesson by Scott Laderman, directed by Silvia Prietov. Thank you so much to our patrons for your support! Without you this video would not be possible. Hiroshi Uchiyama, Adi V, Michal Salman, Peter Liu, Tamás Drávai, Mark Morris, Robert Sukosd, Catherine Sverko, Julie Cummings-Debrot, Ricardo Rendon Cepeda, Maya Toll, Jose Mamattah, Mauro Pellegrini, Javier Martinez Lorenzo, Ka-Hei Law, Chris, Tim Leistikow, Andrés Melo Gámez, Renhe Ji, Alex Serbanescu, Della Palacios, Vik Nagjee, Karen Goepen-Wee, Stephanie Perozo, Bryan Blankenburg.


View full lesson: The myth of the bloodsucking vampire has stalked humans from ancient Mesopotamia to 18th-century Eastern Europe, but it has differed in the terrifying details. So, how did we arrive at the popular image we know, love and fear today? And what truly makes a vampire.a vampire? Michael Molina digs up the science and the superstition. Lesson by Michael Molina, animation by The Moving Company Animation Studio.


View full lesson: This video was created with support from the U.S. Office of Research Integrity: . For several centuries, people though diseases were caused by wandering clouds of poisonous vapor. We now know that this theory is pretty ridiculous, and that diseases are caused by specific bacteria. But how did we get to this new idea of germ theory? Tien Nguyen describes the work of several scientists who discredited a widely accepted theory in a way that was beneficial to human health. Lesson by Tien Nguyen, animation by Brandon Denmark.


View full lesson: GPS location apps on a smartphone can be very handy when mapping a travel route or finding nearby events. But how does your smartphone know where you are? Wilton L. Virgo explains how the answer lies 12,000 miles over your head, in an orbiting satellite that keeps time to the beat of an atomic clock powered by quantum mechanics. Lesson by Wilton L. Virgo, animation by Nick Hilditch.


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: Snatoms magnetic molecules: Veritasium on Patreon: Special thanks to South Bay Line-X: 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


The Higgs Boson is awesome but it's NOT responsible for most of your mass! Thanks to audible.com for supporting this episode: The Higgs mechanism is meant to account for the mass of everything, right? Well no, only the fundamental particles, which means that electrons derive their mass entirely from the Higgs interaction but protons and neutrons, made of quarks, do not. In fact the quark masses are so small that they only make up about 1% of the mass of the proton (and a similar fraction of the neutron). The rest of the mass comes from the energy in the gluon field. Gluons are massless, but there is so much energy in the field that by E=mc^2 there is a significant amount of mass there. This is where most of your mass comes from and the mass of virtually everything around you. Thanks to Professor Derek Leinweber for his great images, animations and explanations. Check out his site to find out more:


View full lesson: Mathematics explains the workings of the universe, from particle physics to engineering and economics. Math is even closely related to music, and their common ground has something to do with a Rubik's Cube puzzle. Michael Staff explains how group theory can teach us to play a Rubik’s Cube like a piano. Lesson by Michael Staff, animation by Shixie.


Check out our Patreon page: View full lesson: In the event of a nuclear fallout, every piece of digital and written information could all be lost. Luckily, there is a way that all of human history could be recorded and safely stored beyond the civilization’s end. And the key ingredient is inside all of us: our DNA. Leo Bear-McGuinness explains. Lesson by Leo Bear-McGuinness, animation by TED-Ed. Thank you so much to our patrons for your support! Without you this video would not be possible. Sdiep Sriram, Hachik Masis Bagdatyan, Matteo De Micheli, Alex Schenkman, Kostadin Mandulov, Miami Beach Family, David & Pamela Fialkoff, Ruth Fang, Mayra Urbano, Brittiny Elman, Tan YH, Vivian James, Ryohky Araya, Mayank Kaul, Steven LaVoy, Adil Abdulla, Megan Whiteleather, Mircea Oprea, Jen, Paul Coupe.