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Videos uploaded by user “minutephysics”
E=mc² is Incomplete
 
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You've heard of E=mc²... but you probably haven't heard the whole story. http://translate.minutephysics.com MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder - http://www.soundcloud.com/drschroeder Thanks to Nima Doroud and Bruno LeFloch for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich
Views: 3128937 minutephysics
Schrödinger's Cat
 
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No cats were harmed in the making of this video. Tweet it - http://bit.ly/qJZry7 Facebook it - http://on.fb.me/rfgo9J minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! In this episode we discuss Schrödinger's cat, quantum entanglement, and our perception of reality. Music by Nathaniel Schroeder youtube: http://bit.ly/pakJLE myspace: http://mysp.ac/qtmZQj German translation by http://www.youtube.com/user/TesaFilmEnt?feature=watch Created by Henry Reich Created by Henry Reich
Views: 6339303 minutephysics
What is fire?
 
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Fire it up! We explain hot stuff. Video of a candle in microgravity: http://mix.msfc.nasa.gov/IMAGES/QTVR/0601309.mov Tweet it - http://bit.ly/pOz9Dn Facebook it - http://on.fb.me/n0pCUE minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! In this episode we explain why fire is red, gas flames are blue, and why you're too cool to glow. Music by Nathaniel Schroeder youtube: http://bit.ly/pakJLE myspace: http://mysp.ac/qtmZQj Created by Henry Reich Created by Henry Reich
Views: 4222226 minutephysics
How lasers work (in theory)
 
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How does a laser really work? It's Bose - Einstein statistics! (photons are bosons) Check out Smarter Every Day's video showing lasers in real life: http://bit.ly/uBwhU2 Trying out a new feature: English Transcript! Let me know how it works Tweet it - http://bit.ly/uZchvb Facebook it - http://on.fb.me/u4Yfvr minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder youtube: http://bit.ly/pakJLE myspace: http://mysp.ac/qtmZQj Created by Henry Reich
Views: 2611204 minutephysics
Antimatter Explained
 
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Listen to "Stuff Matters" for free on Audible at http://www.audible.com/minutephysics MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Created by Henry Reich
Views: 1994586 minutephysics
What Is The Shape of Space? (ft. PhD Comics)
 
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A collaboration with Jorge Cham and Daniel Whiteson, check out "We Have No Idea" at http://www.wehavenoidea.com Jorge's PhDComics: http://www.phdcomics.com Numberphile video about sports in hyperbolic space: https://www.youtube.com/watch?v=u6Got0X41pY Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/ MinutePhysics is on twitter - @minutephysics And facebook - http://facebook.com/minutephysics And Google+ (does anyone use this any more?) - http://bit.ly/qzEwc6 This video is about the local and global geometry and curvature of space and spacetime, aka, is space flat? Negatively curved? Positively curved? etc. Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 1726586 minutephysics
Why It's Impossible to Tune a Piano
 
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Pianos can't be perfectly tuned - it's a mathematical fact! Thanks to http://www.audible.com/minutephysics for supporting MinutePhysics. Equal tempered tuning: https://en.wikipedia.org/wiki/Equal_temperament Just Tuning: https://en.wikipedia.org/wiki/Just_intonation Harmonics: https://en.wikipedia.org/wiki/Harmonic Pythagorean vs Just Tuning: https://www.youtube.com/watch?v=QaYOwIIvgHg Thanks to Patreon supporters for making MinutePhysics possible! MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Created by Henry Reich
Views: 3090590 minutephysics
Why is the Solar System Flat?
 
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Thanks to Embry-Riddle Aeronautical University for supporting us on Subbable.com! - http://prescott.erau.edu A big thanks as well to Subbable supporters The Great Tobini (aka Tobyn Pearson) and Georgi Yanev! You make it possible for us to continue making MinutePhysics Music video - http://youtu.be/ej2KfuiFJ38 What to do When it's Cold Outside - http://www.youtube.com/watch?v=j3Gs6tyiNX4 Galaxy simulation by Rob Crain (Leiden) and the Virgo Consortium, visualization by Rob Crain (Leiden) and Jim Geach (Hertfordshire) MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Created by Henry Reich Created by Henry Reich
Views: 7075335 minutephysics
The Origin of Quantum Mechanics (feat. Neil Turok)
 
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Check out the Massey Lectures with Neil Turok: http://www.cbc.ca/radio/ideas/the-2012-cbc-massey-lectures-the-universe-within-from-quantum-to-cosmos-1.2921611 Perimeter Institute for Theoretical Physics: http://pitp.ca MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder: http://www.soundcloud.com/drschroeder Thanks to Nima Doroud and Bruno LeFloch for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Produced in association with the 2012 Massey Lecture Series http://dft.ba/-massey Created by Henry Reich
Views: 2855353 minutephysics
Immovable Object vs. Unstoppable Force - Which Wins?
 
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The Ultimate Showdown of Ultimate Destiny... also, Tshirts! http://www.dftba.com/minutephysics MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Thanks to Nima Doroud for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich Created by Henry Reich
Views: 11656463 minutephysics
Is it Better to Walk or Run in the Rain?
 
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Subscribe to MinutePhysics - it's FREE! http://dft.ba/-minutephysics_sub For recent scientific publications on the walk/rain question: http://iopscience.iop.org/0143-0807/33/5/1321 MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Thanks to Nima Doroud for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich Created by Henry Reich
Views: 11006524 minutephysics
The True Science of Parallel Universes
 
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Oh, Hey! MinuteEarth! http://youtube.com/minuteearth .........and you can also subscribe to MinutePhysics! MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Drums by Jason Burger http://masonjarmusic.com Thanks to Nima Doroud and TED-Ed for contributions. Created by Henry Reich Created by Henry Reich
Views: 8225059 minutephysics
The Higgs Boson, Part I
 
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The Higgs Boson. What more need be said? Two more Higgs videos coming soon. Also, explore a map of the big bang! http://www.bigbangregistry.com Theory of Everything video - http://bit.ly/yEj0xG What is Matter video - http://bit.ly/ywH3tn minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder Spanish subtitles translated by Marcos Pérez Sánchez Thanks to Nima Doroud, John Toledo and Damian Pope for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich
Views: 2442568 minutephysics
Solution to the Grandfather Paradox
 
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What if you went back in time and killed your own grandfather? Would you still be born? Or would you have thus killed yourself? Thanks to Google #sciencegoals for sponsoring this video! Link to the previous MinutePhysics video: https://youtu.be/XayNKY944lY If you could travel back in time, and you killed your grandfather, would you be killing your future self? What do physics, complexity theory, and computer science have to say about this famous murderous time-travel paradox? Scott Aaronson Notes that discuss time travel and computation, computational complexity, closed timelike curves, and the grandfather paradox: http://www.scottaaronson.com/democritus/lec19.html Technical paper that discusses the same thing: http://arxiv.org/abs/quant-ph/0502072 Thanks to everyone who supports MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon supporters here: http://www.minutephysics.com/supporters.html Music by Nathaniel Schroeder, http://www.soundcloud.com/drschroeder MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 4968688 minutephysics
Is There Poop on the Moon? ft. Smarter Every Day
 
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What else did we leave on the moon? Smarter Every Day explains: http://bit.ly/JunkOnTheMoon Play with a corner reflector: http://labs.minutelabs.io/Optics/corner-reflector/ US Space and Rocket Center: http://www.spacecamp.com/museumHome MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Thanks to Nima Doroud for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich
Views: 2065858 minutephysics
Solution to The Impossible Bet
 
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This problem is called the "100 Prisoners Problem", more info on the math here: http://en.m.wikipedia.org/wiki/100_prisoners_problem Thanks to http://www.ifixit.com for supporting us on Subbable! and to Subbable supporter @vicnice137 And thanks to my friend Dan Hoff for introducing me to this problem! MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Thanks to Nima Doroud for contributions. Created by Henry Reich
Views: 3598225 minutephysics
How Do Bikes Stay Up?
 
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Thanks to littlebits.com for sponsoring this video – use promo code MinutePhysics for $20 off A HUGE thanks to Wren Weichman (@wrenthereaper) for helping with the 3D bike animation, Michael Aranda for drone photography, Pavel for dowsing and Melissa for helping crash bikes. Bike references mainly from: http://bicycle.tudelft.nl/schwab/Bicycle/ https://www.youtube.com/watch?v=2Y4mbT3ozcA And thanks to the following Patreon supporters: Today I Found Out Jeff Straathof Avi Yashchin Mark Jeremy Cummings Wes Brown John Green Rafael Ferreira Luciano Florian Philipp Rens van der Heijden Risa Galant Ricky Shields Kristina Foss PetWolverine Trent Sutherland Ian Foote Eszter Szikora Tasso Kostalas (MavericSun) Amandeep Hayer Abraão Caldas Eric Ma Conner Fissell Bob Bolch Daniel Ametsreiter Joël Quenneville Richard Pearson David Dailey Steven Mulder Karim Ryan Kyle William Ricketts Collin Mandris Jonathan Foster Siddharth Sadanand Robby Olivam Alan Browning Jonathan Piersa Jake Stolhandske Julia Person James Craver Sarah Chavis Yonatan Bisk Richard Campbell Richie Swift Chris Barrett Jan Amza Christopher Coleman David Tebbe Kelvin Dueck Daniel “YoureDown” Breger Hendrik Payer Greck Cannon Chris Peters Landy Manderson Lewis Goddard Seamus Campbell Greg Holger R. Austin Keller Alejandro Medrano Gil Prof Stick Cora Toner Chris Thompson Alan Lam Andrew Collings Mike McHargue Nicholas Buckendorf Blair Bradimore Michael Biot nir lifshitz Nicholas Carroll Edwin Zea Diana Dial Mitch Etzkin Lightbow Dante Santos Mathias Westad Larssen Tom Headley Michael K Geoff Wallace Fredrik Samuelsson Melissa Harkins Jason Talley Keith Marrocco Maarten Bremer Eric Laberge Lacey Larson Neil Ramroop Matthew Norton Efe Efevich Mark Donal Botkin Sylvan Ruud Daniel Friesen Philipi Adolfo Willemann Jeffrey McCullough Oddgeir Ann Brendon Davis Filip Christopher Jimenez Michel Payette Juha Niittynen Jeff Ross Viktor Liljeblad Robert E DeLapp Sean Linsley Christopher O’Neal Marcus Philip Freeman Matthew Heermann Marsha Woerner Daniel Yip Matt K William Pearson Kevin Lynch Nick Ward Kevin john eriksson Allan Farrell Tobias Olesen Chris Chapin Michael Keefe Jon Mann Bert Joji Wata Adam Naber Rob Ibsen Jacob Gumpert Peter Collier Andi Davis Raymond Cason Evan Gale Paul Tori McClanahan Dominik Danilo Metzger Christian Altenhofen Roy Morgan Olivia Darroch Amber Ciarvella ryan horlacher Keith Chang Janel Christensen Will Scherer Mike Fulcher Larom Lancaster John Harman Matt Christos Papandreou Fernando Pazin Jason Medrano Andrew Barnett Katharina Schuchmann John Gietzen Michael Tardibuono Matthew Hebert Pierre-Louis Bourgeois Genevieve Lawrence Brian D’Agostini Chris Dominik Menzi Ryan A. Schauer Daniel Johnson Nico Houbraken Michael Carr Ragnhild Elizabeth Meisterling Lysann Schlegel Magnus Krokstad Owain Blackwood Russ Arrell Maarten Daalder Brenden Bullock Mark Samberg Tina Johnston Mike Cochrane Tom Murphy Peter L Jeff Erica Pratt David Artur Szczypta David Drueding Nicklas Ulvnäs Nigel W James Nelson Mary Foster-Smith Clayton Neff Michael Merino Jason and Gayle Corfman Mihaly Barasz Steven Klurfeld Richard Bairwell Tamas Bartal Erven Justin Prahl Michael Maitlen Hans van Staveren Kasey Karlin Nazario Marie Conrad Jacques LABBÉ Geralyn Byers jason black Candice Blodgett Daniel Gibbs Henry Berthelsen Andy Kittner Steve Hall Rob Snyder John Kelly Jessica Rosenstein Bill Tomiyasu Vasco Simões Simon Hammersley iain Holger Alexis Carpenter Jay Goodman Joseph Perry Mark Govea Eduardo Rampelotto Gatto Created by Henry Reich
Views: 1534686 minutephysics
MAGNETS: How Do They Work?
 
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The Conquest Continues over on Veritasium: http://bit.ly/VEMagnets_m THANK YOU to our amazing Subbable.com subscribers whose donations help keep MinutePhysics running! Calvin Kennell-Heiling Matthew Joseph Woolley TheTripleBstudios - http://www.youtube.com/TheTripleBstudios Mike Ledermueller Mark Liederbach - https://plus.google.com/112637595591573891595/posts Stephanie Ahlberg-Rosell - scoutingwithmeurr.wordpress.com K. Repking @lifeasasleeper How do magnets work? Why do they attract and repel at long distances? Is it magic? No... it's quantum mechanics, and a bit more, as we explain in this, the longest MinutePhysics video ever. MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Additional music by Kevin MacLeod http://www.incompetech.com Created by Henry Reich
Views: 2818601 minutephysics
Hitting the Sun is HARD
 
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Listen to "The Paradox of Choice" for free at http://www.Audible.com/minutephysics This video is about the orbital mechanics of why it’s so hard to crash into the sun – the energy it takes to get there is astoundingly high, compared with leaving the solar system. Thanks to everyone who supports MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon supporters here: http://www.minutephysics.com/supporters.html Music by Nathaniel Schroeder, http://www.soundcloud.com/drschroeder REFERENCES International Atomic Energy Association report on nuclear waste storage: http://www-pub.iaea.org/MTCD/publications/PDF/LTS-RW_web.pdf And Slate’s article on actual potential solutions to nuclear waste: http://www.slate.com/articles/health_and_science/green_room/2009/11/atomic_priesthoods_thorn_landscapes_and_munchian_pictograms.html Info about sun dive delta v from low earth orbit http://space.stackexchange.com/questions/3612/calculating-solar-system-escape-and-and-sun-dive-delta-v-from-lower-earth-orbit Oberth effect https://en.m.wikipedia.org/wiki/Oberth_effect More on rocket burns http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20100033146.pdf Sun dive probe http://news.nationalgeographic.com/news/2010/09/100909-science-space-sun-new-nasa-solar-probe-plus-dive-bomb/ Other plans (jupiter assists) vs repeat Venus assist: http://solarprobe.gsfc.nasa.gov/spp_mission.htm Solar Probe Plus technical paper: http://issfd.org/ISSFD_2014/ISSFD24_Paper_S6-2_Guo.pdf Mercury Messenger Trajectory: https://en.wikipedia.org/wiki/MESSENGER#/media/File:MESSENGER_trajectory.svg Online calculator for orbital velocities, escape velocities, etc: http://keisan.casio.com/exec/system/1360310353 Effective potential (possibly with interactive mathematica notebook?): http://physics.oregonstate.edu/portfolioswiki/doku.php?id=activities:main&file=cfeffpotential https://en.m.wikipedia.org/wiki/Effective_potential https://www.phy.duke.edu/~rgb/Class/phy51/phy51/node8.html Equations for elliptical orbit speeds, etc: https://en.m.wikipedia.org/wiki/Apsis MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 2264784 minutephysics
Why It's HARD To Land on Mars
 
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Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics This video is about why it's harder to successfully land spacecraft and landers and rovers on Mars than on Earth, or Venus, or the Moon, or Titan, or asteroids. It all comes down to atmospheric density! When there's no atmosphere, you can do a powered descent in a flimsy tinfoil spacecraft like the Lunar Module, and when there's plenty of atmosphere you can do an unpowered descent via heat shield and parachutes like the space shuttle, Apollo command module, Soyuz, Huygens, etc. But on Mars with its thin air, you have to do both powered & unpowered descent, getting the worst of both worlds. Thanks to Hoppy Price from JPL for fact-checking this video! Link to Patreon Supporters: http://www.minutephysics.com/supporters/ REFERENCES Spreadsheet to calculate landing success rates: https://docs.google.com/spreadsheets/d/1jqeZCG56UBKvd\_wsyW3GD-qd9TAsaW1RPAiZ-1BCUaE/edit?usp=sharing NASA Low Density Supersonic Decelerator Fact Sheets: https://www.nasa.gov/pdf/737628main\_Final\_LDSD\_Fact\_Sheet\_3-26-13.pdf https://www.jpl.nasa.gov/news/press\_kits/ldsd.pdf LDSD Test Footage: https://www.nasa.gov/mission\_pages/tdm/ldsd/videos.html More LDSD Test Footage:https://www.youtube.com/watch?v=lJzeeYoLn50 List of Missions to Mars: https://en.wikipedia.org/wiki/List\_of\_missions\_to\_Mars List of Missions to the Moon: https://en.wikipedia.org/wiki/List\_of\_missions\_to\_the\_Moon List of Missions to Saturn: https://en.wikipedia.org/wiki/Exploration\_of\_Saturn List of Missions to Venus: https://en.wikipedia.org/wiki/List\_of\_missions\_to\_Venus Curiosity Rover Landing Overview: https://mars.nasa.gov/msl/mission/technology/insituexploration/edl/ MinutePhysics is on twitter - @minutephysics And facebook - http://facebook.com/minutephysics And Google+ (does anyone use this any more?) - http://bit.ly/qzEwc6 Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 939674 minutephysics
Astronomically Correct Twinkle Twinkle
 
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Order the book, ebook, or download the astronomically correct song at http://minutephysics.com/twinkle - if you preorder the book, you get the ebook for FREE! Get the song on itunes: https://itunes.apple.com/us/album/astronomically-correct-twinkle/id952389862?i=952389870 Thanks to Zach Weinersmith of http://www.smbc-comics.com and Chris Jones of http://www.jonesid.com MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 1150135 minutephysics
Can Humans Really Feel Temperature?
 
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Veritasium!! http://youtube.com/veritasium Veritasium video on temperature: http://www.youtube.com/watch?v=vqDbMEdLiCs MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Created by Henry Reich
Views: 1546714 minutephysics
What if the Earth were Hollow?
 
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Link to keep watching over on Vsauce's channel RIGHT HERE: http://www.youtube.com/watch?v=hYf6av21x5c What if there were a tunnel through the middle of the earth and you jumped in? Also, explore a map of the big bang! http://www.bigbangregistry.com MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder Thanks to Nima Doroud for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich Created by Henry Reich
Views: 8233913 minutephysics
Why Isn't It Faster To Fly West?
 
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If the earth is spinning to the east at 1000 miles per hour... why can't we fly west more easily? Thanks to http://www.audible.com/minutephysics for supporting MinutePhysics. Link to Patreon supporters here: www.minutephysics.com/supporters.html Music by Nathaniel Schroeder, http://www.soundcloud.com/drschroeder MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Created by Henry Reich
Views: 2954978 minutephysics
Theory of Everything (intro)
 
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A brief intro to the current theory of (almost) everything - the Standard Model of particle physics. It's like cake, only universal. minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder NEW ALBUM!! -- http://juliansaporiti.bandcamp.com/album/lusitania youtube: http://bit.ly/pakJLE Thanks to Nima Doroud and Alex Yale for contributions and to Perimeter Institute for support. Created by Henry Reich
Views: 1644191 minutephysics
Why is it Dark at Night?
 
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Have you ever wondered why you look up and see a dark sky at night? Help share science with the world: http://translate.minutephysics.com Subscribe to MinutePhysics! MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder Thanks to Nima Doroud and Niayesh Afshordi for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich Created by Henry Reich
Views: 4245015 minutephysics
How Modern Light Bulbs Work
 
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Try out Audible by going to http://www.audible.com/minutephysics You can also help support MinutePhysics on Subbable: http://www.subbable.com/minutephysics MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Created by Henry Reich
Views: 2179487 minutephysics
Transporters and Quantum Teleportation
 
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A reply to CGP Grey's video about teleportation, consciousness and Star Trek. CGP Grey’s Transporter video: https://www.youtube.com/watch?v=nQHBAdShgYI REFERENCES Scott Aaronson on teleportation machines: http://www.scottaaronson.com/democritus/lec18.html The original quantum teleportation paper: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.46.9405&rep=rep1&type=pdf Link to Patreon supporters here: www.minutephysics.com/supporters.html Music by Nathaniel Schroeder, http://www.soundcloud.com/drschroeder MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich Created by Henry Reich
Views: 1437643 minutephysics
Why Are Airplane Engines So Big?
 
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The physics behind the perfect size of a jet engine. Thanks to http://www.audible.com/minutephysics for supporting this video – if you try the free 30-day trial, I recommend "Ender's Game" by Orson Scott Card Thanks for everyone who supports MinutePhysics on Patreon! Link to Patreon supporters here: www.minutephysics.com/supporters.html The answer to this question has everything to do with drag & kinetic energy vs momentum change (thrust) – ie, a bigger engine fan allows for a larger air mass to be accelerated a smaller amount to give the same thrust as you’d get from a smaller engine with larger acceleration. Any acceleration of air imparts energy to that air, which is in principle wasted energy, so ideally we minimize the acceleration of air while maintaining constant thrust, aka bigger engine fan. However, bigger fans have more drag, so there is an ultimate size limit. REFERENCES: A350 schematics - http://www.aerospaceweb.org/aircraft/jetliner/a350/ 747 schematics - http://www.aerospaceweb.org/aircraft/jetliner/b747/ Music by Nathaniel Schroeder, http://www.soundcloud.com/drschroeder MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 1649171 minutephysics
Einstein and The Special Theory of Relativity
 
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How Einstein (& others) discovered Special Relativity. Pi day (3.14) is Albert Einstein's Birthday! To celebrate, we'll explain 4 of his most groundbreaking papers from 1905, when he was just 26 years old. minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder NEW ALBUM!! -- http://juliansaporiti.bandcamp.com/album/lusitania youtube: http://bit.ly/pakJLE Thanks to Nima Doroud and Alex Yale for contributions and to Perimeter Institute for support. Created by Henry Reich
Views: 1591414 minutephysics
2011 Nobel Prize: Dark Energy feat. Sean Carroll
 
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Guest narrator Sean Carroll of Caltech describes dark energy and the acceleration of the universe, the discovery of which was awarded the 2011 Nobel Prize in Physics on October 4th. Tweet it - http://bit.ly/oCD2jo Facebook it - http://on.fb.me/oagPm3 minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder youtube: http://bit.ly/pakJLE myspace: http://mysp.ac/qtmZQj Portuguese translation by Igor Zolnerkevic Created by Henry Reich
Views: 1813158 minutephysics
The Tides
 
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Bad tidings - the tides are slowing down the earth! For more detail about the tides: http://www.jal.cc.il.us/~mikolajsawicki/Tides_new2.pdf Tweet it - http://bit.ly/A58ZwJ Facebook it - http://on.fb.me/zx5jVs minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder NEW ALBUM!! -- http://juliansaporiti.bandcamp.com/album/lusitania youtube: http://bit.ly/pakJLE Created by Henry Reich
Views: 1547834 minutephysics
The Higgs Boson, Part II: What is Mass?
 
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What is mass and what does it have to do with the Higgs Boson? Part I: https://www.youtube.com/watch?v=9Uh5mTxRQcg Also, explore a map of the big bang! http://www.bigbangregistry.com MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder Thanks to Nima Doroud for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich
Views: 1412016 minutephysics
Common Physics Misconceptions
 
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What if you thought the earth was flat? And then you found out it isn't? MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Thanks to Nima Doroud for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich Created by Henry Reich
Views: 4967442 minutephysics
How Do Airplanes Fly?
 
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How Airplanes Are Made: https://www.youtube.com/watch?v=7rMgpExA4kM Thanks to Airbus for supporting this video http://www.a350xwb.com MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Thanks to the following Subbable subscribers for making MinutePhysics possible: Marcus Boden Pineappleman2 @kubakun Alex Haig Brian @devinsba The Talley Family Chris Romano Cameron Johnson Alison Gupta Nicholas Buckendorf Mikael @skaramicke Grön ChrisBrowne3D Viktor Liljeblad Aleksander Bach Lorentzen Michael Jiang Adam Berkan Liam Callaway @liamcallaway Michael D'Costa Peter Zürcher John L Alvizuri Maggie Hanna Will Sabol @sabol.drums youtube.com/jindodied TPRJones TPRJones Liz Ball Andrew Fghqrafxv Jeremy Ray Quick Orontes Ovasi Travis Miyashiro Rob Montgomery Nick Pietrzak Jabe beckiejean on twitter Elliott Collins https://www.youtube.com/user/TroubleBrewingStudio Andi Davis @ AndriaKDavis Raymond Cason Jonathan Seggie Ho Yin Michael Cheng Jakub (@Kubakun at Twitter) Dominik Steenken Brandon Liu Ethi Raj @bdb_i_am Damian Shaw Janel Christensen Ian R. - @ARoarNixed Jeff Ouellette Vanessa Benavent Randy Goldberg MD This video also made possible by the following Patreon Supporters: Jeff Straathof Mark Wes Brown John Green Florian Philipp Rens van der Heijden Ian Foote Eszter Szikora Tasso Kostalas (MavericSun) Amandeep Hayer Abraão Caldas Eric Ma Conner Fissell Muhmammad Bob Bolch Daniel Ametsreiter Joël Quenneville Richard Pearson David Dailey Steven Mulder Karim Ethi Raj Ryan Kyle William Ricketts Collin Mandris Jonathan Foster Siddharth Sadanand Robby Olivam Alan Browning Jonathan Piersa Jake Stolhandske Julia Person James Craver Sarah Chavis Yonatan Bisk Richard Campbell Mikael Richie Swift Chris Barrett Jan A Christopher Coleman Kelvin Dueck Daniel “YoureDown” Breger Hendrik Payer Geoff Wallace Fredrik Samuelsson Melissa Harkins Jason Talley Keith Marrocco Maarten Bremer Eric Laberge Lacey Larson Neil Ramroop Matthew Norton Anastasia Vashkevich Bela9a Efe Efevich Mark Donal Botkin Sylvan Ruud Daniel Friesen Philipi Adolfo Willemann Jeffrey McCullough Oddgeir Gitlestad Ann Priess Maclean Brendon Davis Jeff Fellows Filip Christopher Jimenez Michel Payette Juha Niittynen Jeff Ross Viktor Liljeblad Robert E DeLapp Sean Linsley James Lacy Christopher O'Neal Marcus Philip Freeman Matthew Heermann Marsha Woerner Daniel Yip Matt K William Pearson Kevin Lynch Nick Ward Kevin john eriksson Allan Farrell Tobias Olesen Chris Chapin Michael Keefe Jon Mann Bert Joji Wata Adam Naber Rob Ibsen Jacob Gumpert Peter Collier Andi Davis Aarthy Raymond Cason Evan Gale Paul Tori McClanahan Dominik Steenken Danilo Metzger Christian Altenhofen Roy Morgan Olivia Darroch Amber Ciarvella ryan horlacher Keith Chang Milokot Janel Christensen Will Scherer Mike Fulcher Larom Lancaster John Harman Matt Christos Papandreou Fernando Pazin Johnathon Kinville Jason Medrano Andrew Barnett Katharina Schuchmann John Gietzen Michael Tardibuono Matthew Hebert Christy Filipich Pierre-Louis Bourgeois Genevieve Lawrence Brian D'Agostini Chris Dominik Menzi Ryan A. Schauer Daniel Johnson Nico Houbraken Michael Carr Ragnhild Elizabeth Meisterling Lysann Schlegel Magnus Krokstad Chase Turner Owain Blackwood Russ Arrell Maarten Daalder Brenden Bullock Asaf Gartner Mark Samberg Tina Johnston Mike Cochrane Tom Murphy Peter L Jeff Erica Pratt David Artur Szczypta David Drueding Nicklas Ulvnäs Nigel W James Nelson Mary Foster-Smith Clayton Neff Michael Merino Jason and Gayle Corfman Mihaly Barasz Steven Klurfeld Richard Bairwell Tamas Bartal Erven Justin Prahl Michael Maitlen John Harman Hans van Staveren Kasey Karlin Nazario M K Jacques LABBÉ Geralyn Byers jason black Candice Blodgett Daniel Gibbs Henry Berthelsen Andy Kittner Steve Hall Rob Snyder John Kelly Jessica Rosenstein Bill Tomiyasu Vasco Simões Simon Hammersley iain Holger Alexis Carpenter Jay Goodman Joseph Perry Mark Govea Eduardo Rampelotto Gatto Created by Henry Reich
Views: 1594320 minutephysics
What IS Angular Momentum?
 
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http://audible.com/minutephysics EDWARD SNOWDEN book on Audible: http://www.audible.com/pd/Nonfiction/No-Place-to-Hide-Audiobook/B00MEL9RTI/ref=a_search_c4_1_1_srTtl/191-2173915-6184263?qid=1421950758&sr=1-1 MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Created by Henry Reich
Views: 1351814 minutephysics
Why Isn't The Sky Purple?
 
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Get a free audiobook at http://www.audible.com/minutephysics Why isn't the sky violet? MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Created by Henry Reich
Views: 1176328 minutephysics
Quantum SHAPE-SHIFTING: Neutrino Oscillations
 
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Thanks to the Heising-Simons Foundation for supporting this video: http://www.heisingsimons.org CRAZY Double Pendulum Footnote: https://youtu.be/gbJYK7q5ejY Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/ This video is about the phenomenon of neutrino oscillations, which is where neutrinos can change flavors (ie, change between electron, muon, or tau neutrinos) because those interaction states are in non-trivial superpositions of the free traveling/mass eigenstates (𝜈1, 𝜈2 and 𝜈3). MinutePhysics is on twitter - @minutephysics And facebook - http://facebook.com/minutephysics And Google+ (does anyone use this any more?) - http://bit.ly/qzEwc6 REFERENCES History of Neutrino Oscillations: https://arxiv.org/pdf/hep-ph/0610064.pdf Solar Neutrino Problem: https://en.m.wikipedia.org/wiki/Solar_neutrino_problem Neutrino Oscillation on Wikipedia: https://en.wikipedia.org/wiki/Neutrino_oscillation#Propagation_and_interference Current best fit data for the mixing of neutrinos: http://www.nu-fit.org/?q=node/139 Neutrino Mixing Matrix: https://en.wikipedia.org/wiki/Pontecorvo–Maki–Nakagawa–Sakata_matrix Neutrino Oscillation https://profmattstrassler.com/articles-and-posts/particle-physics-basics/neutrinos/neutrino-types-and-neutrino-oscillations/ Neutrino Masses paper: https://arxiv.org/pdf/1307.3518.pdf Neutral Particle Oscillation: https://en.wikipedia.org/wiki/Neutral_particle_oscillation Technical Intro to Neutrino Mass Mixing: http://pdg.lbl.gov/2015/reviews/rpp2015-rev-neutrino-mixing.pdf PROSPECT project: http://prospect.yale.edu/science Neutrino/nucleon deep inelastic scattering: https://www.nevis.columbia.edu/ccfr/index.html Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 517307 minutephysics
Proof Without Words: The Circle
 
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Prove πR² using only beads and a ruler! I first saw this proof in an article by Russell Jay Hendel, Dowling College: http://bit.ly/LQlwQw minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder Thanks to Nima Doroud for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich
Views: 2490286 minutephysics
Theory of Everything: What is Matter?
 
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What is matter, anyway? What does it have to do with math? And why aren't you made of Jesus? Delving deeper into the theory of (almost) everything - the Standard Model of particle physics. minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder NEW ALBUM!! -- http://juliansaporiti.bandcamp.com/album/lusitania youtube: http://bit.ly/pakJLE Thanks to Nima Doroud and Alex Yale for contributions and to Perimeter Institute for support. Created by Henry Reich
Views: 2105203 minutephysics
2012 Nobel Prize: How Do We See Light?
 
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What was the 2012 Nobel Prize in physics given for? Capturing a single photon of light! Congrats to Serge Haroche and David Wineland http://translate.minutephysics.com MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder Thanks to Krister Shalm, Nima Doroud and Bruno LeFloch for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich
Views: 2124572 minutephysics
The Unreasonable Efficiency of Black Holes
 
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Thanks to https://brilliant.org/minutephysics for sponsoring this video! Check out their black hole course at http://brilliant.org/minutephysicsblackhole Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/ This video is about how efficient various reactions are at converting mass to energy (as we know from the Einstein mass-energy equivalence of E=mc^2). Antimatter is very efficient but it is not naturally-occurring. Chemical reactions like fire or explosions are very inefficient. Nuclear fission and nuclear fusion are better, but not amazing on an absolute scale. Non-rotating black holes (Schwarzschild) and rotating (Kerr) are by far the most efficient, due to their accretion disks and very small radius of their innermost stable circular orbits. REFERENCES: Periodic Videos Hydrogen Explosion in slow motion: https://www.youtube.com/watch?v=qOTgeeTB_kA CIA World Factbook Norway Energy Consumption: https://web.archive.org/web/20120128032332/https://www.cia.gov/library/publications/the-world-factbook/rankorder/2042rank.html Binding Energy: https://en.wikipedia.org/wiki/Binding_energy Hydrogen molecular bonding: https://ocw.mit.edu/courses/chemistry/5-73-introductory-quantum-mechanics-i-fall-2005/lecture-notes/sec13.pdf Gibbs free energy of water formation: https://en.wikipedia.org/wiki/Standard_Gibbs_free_energy_of_formation Party Balloon Size Chart: https://broadwaypartyrental.com/wp-content/uploads/HELIUM-BALOON-CHART.pdf Mass Excess https://en.wikipedia.org/wiki/Mass_excess Table of Mass Excesses: http://www.nndc.bnl.gov/masses/mass.mas12 Deuterium-Tritium Hydrogen Fusion Energy Released: http://www.wolframalpha.com/input/?i=((deuterium+atomic+mass)%2B(tritium+atomic+mass)-(helium-4+atomic+mass)-(neutron+mass))%2F((deuterium+atomic+mass)%2B(tritium+atomic+mass)) Hydrogen to Helium Fusion chain efficiency: http://www.wolframalpha.com/input/?i=(4(proton+mass)-(helium+4+atomic+mass))%2F(4(proton+mass)) Uranium-235 fission efficiency: http://www.wolframalpha.com/input/?i=(neutron+mass%2B(uranium+235+atomic+mass)-(krypton+92+atomic+mass)-(barium+141+atomic+mass)-3(neutron+mass))%2F(neutron+mass%2B(uranium+235+atomic+mass)) Black Hole Accretion rates: http://www-astro.physics.ox.ac.uk/~garret/teaching/lecture7-2012.pdf MinutePhysics is on twitter - @minutephysics And facebook - http://facebook.com/minutephysics And Google+ (does anyone use this any more?) - http://bit.ly/qzEwc6 Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 2167014 minutephysics
GPS, relativity, and nuclear detection
 
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GPS is just a big clock in space! (and it can detect nuclear explosions) Trying out a new feature: English Transcript! Let me know how it works Tweet it - http://bit.ly/ufPyF7 Facebook it - http://on.fb.me/vBkxlV minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder youtube: http://bit.ly/pakJLE myspace: http://mysp.ac/qtmZQj Created by Henry Reich
Views: 942440 minutephysics
How To Discover Weird New Particles | Emergent Quantum Quasiparticles
 
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This video is about weird condensed matter systems, aka materials that have bizarre emergent particles in them that are unlike most other particles in the universe. Thanks to the Moore Foundation (http://www.moore.org) for supporting this video. More info about the physics of weird materials: The Higgs Boson - https://www.youtube.com/watch?v=9Uh5mTxRQcg Semiconductor Holes - http://www.eecs.berkeley.edu/~hu/Chenming-Hu_ch1.pdf Superconductors - https://en.wikipedia.org/wiki/Superconductivity Quasiparticles - https://en.wikipedia.org/wiki/Quasiparticle Heavy Fermions - https://en.wikipedia.org/wiki/Heavy_fermion Link to Patreon supporters here: www.minutephysics.com/supporters.html Music by Nathaniel Schroeder, http://www.soundcloud.com/drschroeder MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 633659 minutephysics
How to Turn Sound Into Light: Sonoluminescence
 
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Another awesome thing the Mantis Shrimp does... The BEST Sonoluminescence reference: http://doc.utwente.nl/42577/1/single-bubble_sonoluminescence.pdf Links to other "Unknown Science Questions" videos Veritasium - http://www.youtube.com/1veritasium (http://www.youtube.com/watch?v=5JGSqG8OLjE) Fast, Furious & Funny - http://www.youtube.com/fastfuriousandfunny (http://www.youtube.com/watch?v=YWxub2XhmXM) The Brain Scoop - http://www.youtube.com/thebrainscoop (http://youtu.be/mNuu0y6ZmAs) ASAPScience - http://www.youtube.com/AsapSCIENCE (http://www.youtube.com/watch?v=wgxJhpLoFFU) The Royal Institute of Great Britain - http://www.youtube.com/TheRoyalInstitution (http://www.youtube.com/watch?v=gm02Oid8sbs) PBS Idea Channel - http://www.youtube.com/pbsideachannel (http://www.youtube.com/watch?v=TbNymweHW4E) The Spangler Effect - http://www.youtube.com/TheSpanglerEffect (http://www.youtube.com/watch?v=4fQ4uB-At-c) Minute Physics - http://www.youtube.com/minutephysics (http://www.youtube.com/watch?v=2yHDeKFW8j8) Head Squeeze - http://www.youtube.com/HeadsqueezeTV (http://www.youtube.com/watch?v=UPBJX1SW7AA) Vsauce - http://www.youtube.com/Vsauce (http://www.youtube.com/watch?v=L45Q1_psDqk) MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Thanks to Nima Doroud for contributions. Created by Henry Reich
Views: 1227822 minutephysics
The Arrow of Time feat. Sean Carroll
 
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Why is the past different from the future? Caltech physicist Sean Carroll explains how the arrow of time is not an intrinsic property of physics, but rather an emergent feature. Trying out a new feature: English Transcript! Let me know how it works Tweet it - http://bit.ly/vJRWOo Facebook it - http://on.fb.me/tHwjDU minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder youtube: http://bit.ly/pakJLE myspace: http://mysp.ac/qtmZQj Created by Henry Reich
Views: 1038771 minutephysics
An Impossible Bet
 
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Should you take the bet? Click here to find out: http://youtu.be/C5-I0bAuEUE Thanks to my friend Dan Hoff for introducing me to this problem! MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Created by Henry Reich
Views: 2532381 minutephysics
How Do We Know The Universe Is ACCELERATING?
 
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Support MinutePhysics on Patreon: http://www.patreon.com/minutephysics Aatish Bhatia helped write this video! A big thanks for his help! Here's his blog: http://www.empiricalzeal.com The universe is expanding – this we know from looking at red shifts of distant galaxies – but the acceleration of the universe's expansion is harder to measure. It requires measuring the change of recession velocity over time, and it's done by comparing Type Ia supernovas as standard candles at different distances, which is how we know the universe is accelerating! Thanks to everyone who supports MinutePhysics on Patreon! Link to Patreon supporters here: http://www.minutephysics.com/supporters.html REFERENCES Type Ia supernovae http://hyperphysics.phy-astr.gsu.edu/hbase/Astro/snovcn.html https://en.wikipedia.org/wiki/Type_Ia_supernova Luminosity Distance https://en.wikipedia.org/wiki/Luminosity_distance Hubble diagram for type Ia supernovas (relatively close to earth): http://www.pnas.org/content/101/1/8/F3.expansion http://www.astronomy.ohio-state.edu/~thompson/1101/lecture_fate_of_universe.html Straightforward references: Ryan Foley talking about WFIRST & Dark Energy https://youtu.be/BhOAwXYKdmw?t=23m Dark Energy FAQ: http://www.preposterousuniverse.com/blog/2011/10/04/dark-energy-faq/ Why does dark energy make the universe accelerate? http://www.preposterousuniverse.com/blog/2013/11/16/why-does-dark-energy-make-the-universe-accelerate/ David Spergel on dark matter & WFIRST https://tvr2c.com/2016/06/01/53116-show-feat-professor-david-spergel-on-his-research-spanning-astrophysical-scales/ Slightly-technical references: Permlutter article (old article but quite well explained & goes into future directions near the end) http://supernova.lbl.gov/PDFs/PhysicsTodayArticle.pdf Technical references: Mukhanov’s Physical Cosmology http://www.astro.caltech.edu/~george/ay21/readings/Mukhanov_PhysFoundCosm.pdf Nobel Prize Summary http://www.nobelprize.org/nobel_prizes/physics/laureates/2011/advanced-physicsprize2011.pdf Cosmological redshift https://en.wikipedia.org/wiki/Redshift#Expansion_of_space MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 535264 minutephysics
What is Touch?
 
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In this quantum world, what does it mean to touch something? Do we really hover above the chairs we're sitting in? MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder http://www.soundcloud.com/drschroeder Thanks to Nima Doroud for contributions and to Perimeter Institute for support. http://www.perimeterinstitute.ca Created by Henry Reich
Views: 1686940 minutephysics
The Black Hole Tipping Point
 
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Thanks to https://brilliant.org/minutephysics/ for sponsoring this video! Check out their black hole course at https://brilliant.org/minutephysicsblackhole Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/ This video is about the Schwarzschild radius of a black hole, (its "event horizon"), and how much mass and density is required to reach the point of no return where an object like a star, neutron star, red giant, etc will collapse into a black hole singularity. You can calculate it yourself using just the volume equation for a sphere, and the equation for the Schwarzschild radius (and knowing the speed of light and Newton's gravitational constant). REFERENCES Lecture notes on black holes: http://eagle.phys.utk.edu/guidry/astro616/lectures/lecture_ch18.pdf Mass of cat: https://www.google.com/search?q=mass+of+cat&oq=mass+of+cat Schwarzschild radius: https://en.wikipedia.org/wiki/Schwarzschild_radius LIGO Neutron Star Binary Merger: http://www.astronomy.com/news/2017/10/ligo-detects-a-neutron-star-merger Tolman-Oppenheimer-Volkoff Limit: https://en.wikipedia.org/wiki/Tolman%E2%80%93Oppenheimer%E2%80%93Volkoff_limit Neutron Star Equation of State & Density: http://chimera.roma1.infn.it/OMAR/dottorato/papers/annurev-nucl-102711-095018.pdf Neutron Star Radius: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.928.903&rep=rep1&type=pdf MinutePhysics is on twitter - @minutephysics And facebook - http://facebook.com/minutephysics And Google+ (does anyone use this any more?) - http://bit.ly/qzEwc6 Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 914913 minutephysics