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Videos uploaded by user “Physics Girl”
The Ultraviolet Catastrophe
 
06:32
How did the field of quantum mechanics come about in the first place? The Rayleigh-Jeans catastrophe, also known as the ultraviolet catastrophe was a prediction by the Rayleigh-Jeans law that a blackbody would radiate infinite amounts of ultraviolet light. It wasn’t until Max Planck came along and predicted that light came in packets or quanta that the field of quantum mechanics emerged and unintentionally solved the ultraviolet catastrophe. Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator: Dianna Cowern Editor: Jabril Ashe Writer: Sophia Chen Animations: Jabril Ashe/Kyle Norby Thanks to Ashley Warner and Kyle Kitzmiller http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Subscribe to Physics Girl for more fun physics! Music: APM
Views: 489849 Physics Girl
What are Quarks? Sugar Edition!
 
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Protons and neutrons are made of three quarks, right? Wrong! Explore the particle they should have told you about when you were a kid! 10 quirky facts about quarks blog post: http://www.physicsgirl.org/blog/tenquarks Instagram: http://instagram.com/thephysicsgirl Facebook: http://www.physicsgirl.org/facebook Twitter: http://www.physicsgirl.org/twitter Updates: http://physicsgirl.org Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Colored Light Simulation courtesy from www.edumedia-sciences.com Many thanks to the Richard Dawkins Foundation for Reason and Science for featuring Physics Girl https://richarddawkins.net/physicsgirl/ Music: "Eureka," "Safety Net," "Caudio the Worm," "On the Bach"
Views: 384574 Physics Girl
Seeing the Smallest Thing in the Universe
 
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Beyond molecules and atoms, how far down can we see below the wavelength of visible light? What is the smallest possible scale in the universe? Frog animation by Matt Burns Facebook: http://www.physicsgirl.org/facebook Twitter: http://www.physicsgirl.org/twitter Updates: http://physicsgirl.org Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Thanks to Kyle Kitzmiller for filming. Image Credits: SEM Images: Dartmouth Electron Microscope Facility Infrared Images: Courtesy NASA/JPL-Caltech LHC Images: CERN Historical Particle Collider: INFN-LNF www.lnf.infn.it Molecule images: IBM Atom Images: Aneta Stoldona; APS Music: Michael Miller, Kevin McLeod - "Carefree," YouTube - "On the Bach"
Views: 698901 Physics Girl
How does laser cooling work?
 
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Laser hair removal video: https://youtu.be/S20-1_XqVPM Veritasium: http://youtube.com/veritasium How can light be used to cool atoms and molecules ? Lasers are known to burn things, fix eyes, and dance on powerpoint presentations. But they can also be used to cool objects to some of the coldest temperatures in the universe. Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator: Dianna Cowern Writer: Sophia Chen Animations: Kyle Norby http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl More resources: https://www.youtube.com/watch?v=j2Bpz... Stock visuals: Pixabay.com and shutterstock.com Music: APM and YouTube Laser Cooling animation: NOVA Animations: Kyle Norby
Views: 420040 Physics Girl
Special Relativity and the Twin Paradox
 
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How can just two rules of Einstein's 1905 theory of special relativity lead to seemingly paradoxical changes in the perception of time? Want exclusive updates whenever a new video is posted? Sign up here! http://www.physicsgirl.org/signup This video was inspired by a special relativity class in high school. Special relativity was one of the first subjects that made me go, “wow, that’s really how the world works?!” It stretched my imagination, as I hope the twin paradox will yours. Airplane footage: Ben Bloomberg, Derek Muller Rocket Footage: NASA Thanks to Bobak Hashemi and Kyle Kitzmiller for helping film Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Instagram: http://instagram.com/thephysicsgirl Twitter: http://twitter.com/thephysicsgirl Facebook: http://facebook.com/thephysicsgirl http://physicsgirl.org/ Music: "Ticker," "Good Starts," Locally Sourced," "Space Coast"
Views: 652934 Physics Girl
Stacked Ball Drop
 
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What happens when you drop a perfectly balanced stack of balls? And how is the result like a supernova? The classic momentum transfer demonstration, taken to the next level. A big thank you to my nephews and niece Drew, Max and Whitney for creating the trampoline footage! Thank you to the Vlogbrothers for sponsoring this video, to Kyle Kitzmiller for filming, and to Island School on Kauai for providing the balls (ischool.org). Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Music: YouTube Space Images/animation: NASA instagram.com/thephysicsgirl facebook.com/thephysicsgirl twitter.com/thephysicsgirl physicsgirl.org
Views: 1661342 Physics Girl
Why this skateboarding trick should be IMPOSSIBLE ft. Rodney Mullen
 
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Skateboarding legend Rodney Mullen teams up with Physics Girl to explain the unusual physics behind skateboard tricks. Filmed with a phantom high speed camera at 1000fps, see Mullen's tricks like never before. Created by Dianna Cowern Editing: Jabril Ashe Animations: Kyle Norby Props: Kyle Kitzmiller Science Advisor: Dan Walsh Check out Beyond Slow Motion: https://www.youtube.com/beyondslowmotion and Kuma Films: https://www.youtube.com/channel/UC497r18hyShx1ffsYcgK_kg A million thanks to Rodney Mullen! https://www.instagram.com/rodneymullen/?hl=en Thanks to Kyle Kitzmiller twitter.com/kylekengineering http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl PO Box 9281 San Diego, CA 92169 Resources: https://link.springer.com/article/10.1007/BF01049489 https://www.youtube.com/watch?v=1n-HMSCDYtM More fun reading: https://www.wired.com/2014/10/skateboard-physics-empzeal/
Views: 1222168 Physics Girl
Seven Science Experiments with Surface Tension
 
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Surface tension holds the surface molecules of liquids tightly together and makes for some fun experiments! Instagram: http://instagram.com/thephysicsgirl Facebook: http://www.physicsgirl.org/facebook Twitter: http://www.physicsgirl.org/twitter Updates: http://physicsgirl.org Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Thanks to my mom for filming Music: "On the Bach," "Bluesy Vibes," "Good Starts"
Views: 473925 Physics Girl
Why is the universe flat?
 
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Cosmic inflation is a theory that was proposed in the 1980s by cosmologist Alan Guth to answer some of the most fundamental questions of the origins of our universe. It also solved the Horizon Problem and the Flatness Problem. Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Subscribe - http://www.youtube.com/subscription_center?add_user=physicswoman Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/
Views: 1161779 Physics Girl
How 3D holograms work
 
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Holograms are photographic recordings of 3D scenes. Unlike a camera, which captures one view through a small viewer focused by a lens, holograms capture an entire light field which allows them to recreate the 3D scene. Shimmery 2D projections, like pre-recorded Pepper’s ghost illusion, are often confused with 3D holograms. Pepper’s Ghost Tutorials https://www.youtube.com/watch?v=ygMXTx0fLqw https://www.youtube.com/watch?v=7YWTtCsvgvg instagram.com/thephysicsgirl facebook.com/thephysicsgirl twitter.com/thephysicsgirl physicsgirl.org Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Physics Girl has joined PBS Digital Studios! https://www.youtube.com/user/pbsdigitalstudios Videography: Forbidden Kingdom Digital, Cathy Cowern Editing: Dianna Cowern and Forbidden Kingdom Digital forbiddenkingdomdigital.com Hologram microscopic views: Richard L Howey http://www.microscopy-uk.org.uk/mag/artmar07/rh-whimsies.html and https://en.wikipedia.org/wiki/Holography#/media/File:Holographic_recording.jpg Tupac Coachella Footage: https://www.youtube.com/watch?v=YgMen4-PI74 Music: YouTube - “On the Bach,” “Good Starts” Mozart “Eine Kleine Nachtmusik” Stock Images: Pixabay
Views: 201755 Physics Girl
Singing plates - Standing Waves on Chladni plates
 
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Use physics to create cool patterns on a vibrating plate. How is this like a guitar string or a singing wine glass? Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/ Slinky standing wave animation courtesy of: The Animations for Physics and Astronomy Project at Penn State Schuylkill https://www.youtube.com/watch?v=3BN5-JSsu_4 Standing wave interference simulation courtesy of: Walter Fendt http://www.walter-fendt.de/ph14e/stwaverefl.htm 3D standing wave footage courtesy of: Yoichi Ochiai, Takayuki Hoshi, and Jun Rekimoto https://www.youtube.com/watch?v=odJxJRAxdFU Music Credit: Apple and YouTube Music Library Thanks to Donovan for his assistance filming!
Views: 506209 Physics Girl
Quantum Cryptography Explained
 
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This episode is brought to you by Squarespace: http://www.squarespace.com/physicsgirl With recent high-profile security decryption cases, encryption is more important than ever. Much of your browser usage and your smartphone data is encrypted. But what does that process actually entail? And when computers get smarter and faster due to advances in quantum physics, how will encryption keep up? http://physicsgirl.org/ ‪http://twitter.com/thephysicsgirl ‪http://facebook.com/thephysicsgirl ‪http://instagram.com/thephysicsgirl http://physicsgirl.org/ Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator/Editor: Dianna Cowern Writer: Sophia Chen Animator: Kyle Norby Special thanks to Nathan Lysne Source: http://gva.noekeon.org/QCandSKD/QCand... http://physicsworld.com/cws/article/n... https://epic.org/crypto/export_contro... http://fas.org/irp/offdocs/eo_crypt_9... Music: APM and YouTube
Views: 265714 Physics Girl
Crazy pool vortex
 
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This unique phenomenon can be easily reproduced in a pool on a sunny day. Subscribe - http://www.youtube.com/subscription_center?add_user=physicswoman Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/ Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Many thanks to the Vlogbrothers for their sponsorship of this video! Also thank you to Daniel Walsh for answering many fluid dynamics questions, to Jacob Schalch for filming the burning penny, and to Justin and Brendan for their donations to support Physics Girl!
Views: 7050157 Physics Girl
Why do we care about gravitational waves?
 
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On Feb 11, 2016 Scientists at LIGO announced that they had detected gravitational waves for the first time. In the press conference heard round the world, they showed the tell-tale waveforms indicating that huge event in which two black holes merged 1.3 billion lightyears away, had created waves that passed by the LIGO detectors and were finally heard. Einstein predicted the existence of these waves in his 1915 theory of general relativity. But it took a long time for us to come up with the technology to detect them. For one, we had to invent lasers! This video discusses why this discovery is important, what it means for astronomy, and what’s next. If you can’t tell, I’m very excited. http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl http://physicsgirl.org/ Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator: Dianna Cowern Warping spacetime animation: Kyle Norby Visuals: NASA, LIGO, SXS, R. Hurt, T. Pyle, CalTech, MIT Music: APM and YouTube
Views: 157107 Physics Girl
What is Color? Flame Challenge Winner 2014
 
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This is the winning entry for the 2014 Flame Challenge put on by Alan Alda and the Center for Communicating Science. http://flamechallenge.org The competition is judged by 27,000 5th graders from around the world. Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/
Views: 110136 Physics Girl
Why aren't plants black? 🌿
 
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Why are plants green? Is there a reason plants evolved to be green, globally? What does it have to do with the color of the sunlight coming down through our atmosphere? http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator: Dianna Cowern Editor: Jabril Ashe Hamburger eater: Jabril Ashe Colorful Planet Artist: Ashley Warner Thanks to: Dan Walsh, Kyle Kitzmiller, Joe Hanson and Kyle Norby Sources: Black Nigrescens Plant: http://www.thedangergarden.com/2013/02/ophiopogon-planiscapus-nigrescens-my.html With permission from Loree Bohl, thedangergarden.com Green Nigrescens Plant: With permission from © Davis Landscape Architecture, London, UK http://www.davisla.com Solar spectrum adapted from: https://commons.wikimedia.org/wiki/File:Solar_Spectrum.png Chlorophyll spectrum adapted from: http://www.austincc.edu/biocr/1406/labm/ex7/prelab_7_4.htm The Functional Significance of Black-Pigmented Leaves: Photosynthesis, Photoprotection and Productivity in Ophiopogon planiscapus ‘Nigrescens’ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3691134/ Functional evolution of photochemical energy transformations in oxygen-producing organisms http://www.publish.csiro.au/FP/pdf/FP09087 Evolutionary Competition Between Primitive Photosynthetic Systems: Existence of an early purple Earth? http://adsabs.harvard.edu/abs/2006AAS...209.0605S A Compilation of Selected Data on Solar Radiation at Sea Level http://www.dtic.mil/dtic/tr/fulltext/u2/646355.pdf Green Light Drives CO2 Fixation Deep Within Leaves http://pcp.oxfordjournals.org/content/39/10/1020.full.pdf+html Green Light Drives Leaf Photosynthesis More Efficiently than Red Light in Strong White Light: Revisiting the Enigmatic Question of Why Leaves are Green http://pcp.oxfordjournals.org/content/50/4/684.full.pdf+html http://msue.anr.msu.edu/news/green_light_is_it_important_for_plant_growth https://www.researchgate.net/publication/40900745_Cost_and_color_of_photosynthesis http://www.annualreviews.org/doi/abs/10.1146/annurev-arplant-042110-103811 The sensitivity of the human eye to different colors https://www.ecse.rpi.edu/~schubert/Light-Emitting-Diodes-dot-org/Sample-Chapter.pdf Music: APM
Views: 593684 Physics Girl
The Broom Riddle (Solution) ft. Kurt Hugo Schneider part 3/3
 
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Video 1 with the bowl riddle: https://youtu.be/z0JpgEOLezY Video 2 with the broom and some bonus riddles: https://youtu.be/_34bYpxK_OE Check out Kurt's channel! http://www.youtube.com/kurthugoschneider Three tricky riddles! See if you can solve the 2s riddle! Creator: Dianna Cowern Editing: Jabril Ashe Research: Dan Walsh
Views: 172422 Physics Girl
How science explains monster waves
 
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Rogue waves - enormous, spontaneous surface waves in the open ocean - were once the tall tales of sailors. They are waves that reach 2-3x taller than the largest average waves in the area, reaching heights of 75 – 100ft. With the help of a ESA satellite survey, the scientific community now accepts they happen frequently. What causes rogue waves? This episode is sponsored by Audible. Try Audible: http://audible.com/physicsgirl http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator: Dianna Cowern Writer: Sophia Chen Editor: Jabril Ashe Animator: Kyle Norby Resources: Drauper oil platform wave recreation: BBC Oil Platform footage: James Eaton Crashing Wave/Boat Animation: DAAC Rogue Wave simulation: Lev Kaplan, Tulane University More resources: Stock visuals: Pixabay.com, shutterstock.com Music: APM and YouTube
Views: 162596 Physics Girl
How to make a square vortex ring! ft. 3blue1brown
 
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Turbulence with 3blue1brown: https://youtu.be/_UoTTq651dE Dianna from Physics Girl makes DIY crazy vortex ring shapes with Grant Sanderson from 3blue1brown Creator: Dianna Cowern Producer: Dan Walsh Editing: Jabril Ashe Animations: Keegan Larwin, Dan Walsh, Brooke Wimberley, and Jabril Ashe Thanks to Kyle Kitzmiller! http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl
Views: 261675 Physics Girl
Can you solve this pier puzzle?
 
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This math brainteaser challenges you to find a simple, elegant solution to a seemingly complex problem! Can you figure it out? There are two towns near a shore. They want to build a pier on the shoreline with a path connecting the pier to each town. They want to use as little material as possible, so they need to put the pier in a location on the shoreline that minimizes the total length of both paths added together. Where should they put the pier? This video was inspired by a brainteaser in the book “Brainteaser Physics: Challenging Physics Puzzlers” by Göran Grimvall. Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator: Dianna Cowern Editor: Jabril Ashe Researcher: Sophia Chen Featuring: Jabril Ashe https://www.youtube.com/sefdscience Katie Mack https://twitter.com/AstroKatie Derek Muller https://www.youtube.com/user/1veritasium http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl
Views: 316307 Physics Girl
The Physics of Weightless Flight ft Emily Calandrelli
 
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Ever wanted to know how those vomit comet planes simulate weightlessness? Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/ Interview with Emily Calandrelli here: http://youtu.be/BnLQTUnXMg8 Check out her website here: http://emilycalandrelli.com Vomit comet footage courtesy of NASA and Zero-G Experience® Music courtesy of Apple Thanks to Kyle for riding the roller coaster with me so I didn't have to go alone.
Views: 174691 Physics Girl
Are MRIs safe?
 
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Are there any dangers associated with receiving an MRI and how exactly does an MRI work? Is it safe? Medical imaging, specifically magnetic resonance imaging (MRI), has come so far that we can create high resolution images of the entire body. The technology utilizes a cylindrical cavity surrounded by a giant electromagnet, and the magnetic field though the cavity is used to image body tissue. http://physicsgirl.org/ http://twitter.com/thephysisgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Decommissioned MRi footage courtesy of PractiCalFMRI: http://practicalfmri.blogspot.com/ MRI animation footage courtesy of NIBIB Thanks to Dr. Meg Richman for allowing us to MRI fruit and to Dr. Mike Casale for his interview on fMRIs. Music: YouTube and APM Videography: Jabril Ashe http://sefd.com/science Stock footage: shutterstock.com
Views: 174885 Physics Girl
What is Dark Matter? A Mystery of the Universe
 
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You've probably heard the term Dark Matter, but what is it, and how do we know it exists? Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/
Views: 403996 Physics Girl
Calculating Pi with Darts
 
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Subscribe to Veritasium http://youtube.com/veritasium Instagram: http://instagram.com/thephysicsgirl Physics Girl: http://physicsgirl.org/ Facebook: http://facebook.com/thephysicsgirl Twitter: http://twitter.com/thephysicsgirl Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Pi can be calculated using a random sample of darts thrown at a square and circle target. The problem with this method lies in attempting to throw "randomly." We explored different ways to overcome our errors. A million thanks to Derek Muller of Veritasium for his help with this video. http://youtube.com/veritasium. Also a huge thank you to Dan, Virginia, Lara and Cyrus for providing a yard.
Views: 461677 Physics Girl
Can you push a spacecraft with light?
 
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This episode is brought to you by Squarespace: ‪http://www.squarespace.com/physicsgirl What if you could power a ship using sunlight instead of wind? Well in space, you can! Solar sails or light sails are pushed with light from the sun. Photons provide a kick when they reflect off the sail pushing the sail like an air molecule in the wind pushes a sailboat. Find out how a solar sail works and about the future of this technology! ‪http://physicsgirl.org/ ‪http://twitter.com/thephysisgirl ‪http://facebook.com/thephysicsgirl ‪http://instagram.com/thephysicsgirl Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Host/editor: Dianna Cowern Writer: Sophia Chen Editor: Jabril Ashe - sefdstuff.com/science Animator: Kyle Norby Photos/Videos: NASA LightSail - Planetary Society Pixabay.com Shutterstock.com FASTSAT NanoSail-D Launch - NASA: https://www.youtube.com/watch?v=5gS4n5vz9Tw Optical Tweezes Footage - Dr Luis Grave De Petralta: https://www.youtube.com/watch?v=q6ybb9rKfus IKAROS drawing - Andrzej MIrecki: https://en.wikipedia.org/wiki/IKAROS#/media/File:IKAROS_solar_sail.jpg Music: APM and YouTube
Views: 119032 Physics Girl
How to float a ping pong ball on air - The Coandă Effect
 
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Widely explained using the Bernoulli principle, this phenomenon is actually dominated by the Coanda effect. Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/ Music courtesy of Apple and M. R. Miller - https://soundcloud.com/michaelrmmiller
Views: 275368 Physics Girl
Can explosions work in space?
 
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The most exciting SciFi movies have tons of space explosions. But how effective would explosions be in outer space with no atmosphere to carry the blast wave? Could a hypothetical explosion hurt you in space? Check out Joe Hanson's video on It's Okay to be Smart on the physics of space battles! https://www.youtube.com/watch?v=ZFOuxAx-dkc http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator: Dianna Cowern Writer: Sophia Chen Editor: Jabril Ashe Animator: Kyle Norby Gravitational Waves: LIGO Music/Sound: APM
Views: 227714 Physics Girl
How to make fluid "climb" up! AMAZING SLIME EXPERIMENT!
 
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Slime exhibits some crazy unusual properties, like viscoelasticity, because it's a non-newtonian fluid. Learn more about CuriosityStream at https://curiositystream.com/physicsgirl We can use non-newtonian properties to make the fluid "defy gravity" and climb up a spinning rod. This is called the Weissenberg effect. Subscribe to physics girl: https://www.youtube.com/subscription_center?add_user=physicswoman Creator: Dianna Cowern Research: Daniel Walsh Editing: Dianna Cowern and Jabril Ashe http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl PO Box 9281 San Diego, CA 92169
Views: 126267 Physics Girl
Amusing Surface Tension Experiment
 
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http://www.youtube.com/physicswoman How does soap change the surface tension of water? I have used my degree to make a fifth video -- for you all -- to explain this very question.
Views: 163533 Physics Girl
What's in the darkest part of the sky? The Hubble Deep Field
 
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What happens when you point the Hubble Space Telescope at the darkest part of the sky for 10 consecutive days? Besides using up extremely valuable time, what would you find? Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/ Music credit: Apple and YouTube
Views: 64047 Physics Girl
The Projector Illusion |  EVERYDAY MYSTERIES
 
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Take the PBS Survey: https://to.pbs.org/2018YTSurvey Have you ever seen a blur of color when looking away from a projector screen? Or noticed how flashing lights look different colors when you move your eyes? This is an everyday mystery! The answer lies in persistence of vision and how your brain processes what it sees. Creator: Dianna Cowern Editing: Jabril Ashe and Dianna Research: Dan Walsh Thanks to: Wren Weichman and Kyle Kitzmiller http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Resources: Neural response changes during saccadic motion https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2787621/ Brain discards lots of information during saccadic motion, more than necessary https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5449188/ https://peerj.com/articles/1150/ Chronostasis https://www.sciencedirect.com/science/article/pii/S0960982202007078
Views: 140668 Physics Girl
What are antibubbles?
 
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Beyond Slow Motion: https://www.youtube.com/user/BeyondSlowMotion This episode is sponsored by Audible. Try Audible: http://audible.com/physicsgirl Smarter Every Day video: https://www.youtube.com/watch?v=KJDEsAy9RyM Learn how to make antibubbles and the science behind these fun, unusual spheres. This cool and unusual demonstration is an easy DIY experiment. Antibubbles are a spherical shell of air enclosing a droplet of water, all submerged in water. Just the opposite of a bubble! Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator: Dianna Cowern Writer: Sophia Chen Editor: Jabril Ashe Animator: Kyle Norby Many thanks to Dr. Howard A. Stone, Dr. Stéphane Dorbolo, Dan Walsh, Ashley Warner Music: APM - "Social Behaviour" by Frederic Sans
Views: 1042099 Physics Girl
How to Make a Hurricane on a Bubble
 
03:41
How do scientists mimic the physics of a hurricane on the surface of a bubble? What other types of crazy research are bubbles used for? Learn how to create colorful vortices on a bubble in your kitchen! instagram.com/thephysicsgirl facebook.com/thephysicsgirl twitter.com/thephysicsgirl physicsgirl.org Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Physics Girl has joined PBS Digital Studios! https://www.youtube.com/user/pbsdigitalstudios RESOURCES University of Bordeaux Experiment footage - CNRS http://videotheque.cnrs.fr/video.php?urlaction=visualisation&method=QT&action=visu&id=4175&langue=EN NASA Hurricane Footage https://www.youtube.com/watch?t=10&v=Z3Z_WuY_434 ttps://www.youtube.com/watch?v=yt6xI2p4kcU http://solarsystem.nasa.gov/multimedia/video-view.cfm?Vid_ID=3102 NASA bubbles in Space https://www.youtube.com/watch?v=cXsvy2tBJlU Paper on Hurricane Vortices: http://www.nature.com/srep/2013/131213/srep03455/full/srep03455.html Meuel, T., Xiong, Y. L., Fischer, P., Bruneau, C. H., Bessafi, M. and Kellay, H. Intensity of vortices: from soap bubbles to hurricanes. Scientific Reports 3, Article number: 3455 (2013). Footage used with permission from Hamid Kellay. Paper on Knotted Vortices: http://www.nature.com/nphys/journal/v9/n4/full/nphys2560.html Kleckner, D and Irvine, W. T. M. Creation and dynamics of knotted vortices. Nature Physics 9, 253–258 (2013) Footage used with permission from Dustin Kleckner. Paper on Popping Bubbles: http://www.sciencemag.org/content/340/6133/720 R. I. Saye and J. A. Sethian, Multiscale Modeling of Membrane Rearrangement, Drainage, and Rupture in Evolving Foams, Science, 340(6133), 720–724 (2013). Footage used with permission from James Sethian and Robert Saye For suggestions on how to set up lighting for filming bubbles, check out ShanksFX video here https://www.youtube.com/watch?v=ODfj3Tw6oE4
Views: 221127 Physics Girl
Tricky Spool Riddle SOLUTION - ft Anne Wojcicki
 
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How did you answer the spool riddle? Try SquareSpacepace at http://squarespace.com/physicsgirl Special guest Anne Wojcicki, entrepreneur, biologist and CEO of 23andMe, joins Physics Girl for the answer(s?!) to the spool riddle and for a genetics riddle! First Video: https://youtu.be/BnxG0RqP080 Second Video: Creator: Dianna Cowern Editor: Jabril Ashe Animator: Kyle Norby Thanks to: Anne Wojcicki, the 23andMe staff and Dan Walsh I first heard this riddle from Derek Muller of Veritasium during a talk he gave. It stuck with me as a fun hands-on riddle to ask in person. Plus he gave me his blessing to use it in a video. He hates riddles anyways. ••••••••••••••••••••••••••••••••••••••••­­­••••••••••• Keep up with my less sciencey shenanigans: INSTAGRAM: http://instagram.com/thephysicsgirl TWITTER: http://twitter.com/thephysicsgirl FACEBOOK: http://facebook.com/thephysicsgirl
Views: 160928 Physics Girl
Bizarre spinning toys
 
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Spinning toys and tops have unusual behaviors. The famous tippe top flips itself over and spins on its stem. The PhiTOP stands up on its end, which you can also do with a hard-boiled egg. These behaviors all have to do with torque and angular momentum, like a bicycle wheel precessing around a rope due to gyroscopic behavior. Defining Gravity with Tim Blais: https://www.youtube.com/watch?v=yTQyFzTl5GA A Cappella Science: https://www.youtube.com/user/acapellascience Crash Course Physics: https://www.youtube.com/watch?v=ZM8ECpBuQYE http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator: Dianna Cowern Writer: Sophia Chen Editor: Jabril Ashe Animator: Kyle Norby PhiTOP: http://www.thephitop.com More resources: http://www.nature.com/nature/journal/v416/n6879/pdf/416385a.pdf http://iopscience.iop.org/article/10.1088/0031-9120/48/1/51/pdf http://rspa.royalsocietypublishing.org/content/royprsa/462/2074/2897.full.pdf Music: APM
Views: 552145 Physics Girl
Avoid electric shock getting out of a car!
 
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As the weather gets colder and dryer, you are more likely to get shocked when getting out of a car, touching a door knob, or doing laundry. Is there a way to prevent getting shocked on the car door? physicsgirl.org instagram.com/thephysicsgirl facebook.com/thephysicsgirl twitter.com/thephysicsgirl Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Host/Writer: Dianna Cowern Editor: Jabril Ashe (http://sefdstuff.com/science) Thanks to Brad at UCSD for letting me use the Van de Graaff generator!
Views: 448092 Physics Girl
How do touchscreens work?
 
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How does a touchscreen work? Why can you text with your finger, but not with a q-tip? The physics of smartphones is a complicated and amazing mixture of engineering, physics, electronics and computer science. Topics: Capacitive touch screen Binary language Unicode Subscribe to Physics Girl for more fun physics! https://www.youtube.com/subscription_center?add_user=physicswoman Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator: Dianna Cowern Research/Writer: Sophia Chen Editor: Jabril Ashe & Dianna Cowern Animations: Kyle Norby Videography: Cathy Cowern Thanks to Dan Walsh and Marcel Stieber http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl
Views: 257466 Physics Girl
The Physics Behind a Curveball - The Magnus Effect
 
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Ever seen a ball curve or bend in the air during a soccer game and wondered what exactly makes it curve? Find Kyle at: http://twitter.com/kylekitzmiller Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/ Check out these curve shots: https://www.youtube.com/watch?v=3ECoR__tJNQ http://youtu.be/t0GESlaVNdE https://www.youtube.com/watch?v=IK1PiSv4n5w https://www.youtube.com/watch?v=NrVTmToS728 Thank you to Kyle Kitzmiller and Brendan for their help with this video!
Views: 408389 Physics Girl
What can you do with a physics degree? Take 2
 
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Where do physics majors end up, besides broke and teaching the next mob of physics majors? How many physics majors end up working in History and English right out of school? Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/ Watch at your own risk for a speedy list of careers for physics majors, plus some words of advice - and some words of nonsense - from a physics major (turned software engineer ... for now). Music @ 0:00 and 1:27 by Cyrus Reynolds - http://soundcloud.com/cyrusreynolds - Thanks Cy! Check out the stats from this video here: http://www.aip.org/statistics/trends/reports/empinibs0910.pdf
Views: 317898 Physics Girl
NEW RESULTS! Cosmic Quantum Bell Test
 
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Try 23andMe at http://23andme.com/physicsgirl Original paper: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.060401 How do you test quantum mechanics with ancient stars? A new experiment aims to close loopholes to the iconic "Quantum Bell Test", with new results published in Feb. 2017! Creator/host: Dianna Cowern Animator: Kyle Norby Writer: Sophia Chen Editor: Jabril Ashe instagram.com/thephysicsgirl facebook.com/thephysicsgirl twitter.com/thephysicsgirl physicsgirl.org Paper: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.060401 Photo of detector thumbs-up and quantum receiver apparatus photo: Thomas Scheidl Guth/Zeilinger/Kaiser photo: Ari Daniel Cosmic Bell Group photo: Courtesy Dave Kaiser Music: APM and YouTube
Views: 258030 Physics Girl
The Most Mysterious Object in the Universe
 
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Physics Girl astrophysics series - Brown Dwarfs are among the most recently observed objects in the universe. They have at MOST 8% the mass of the Sun. The lower mass boundary is not known! So they are halfway between stars and gas giant planets. Astrophysicist Daniella Bardalez Gagliuffi sits down with Dianna Cowern to discuss the latest research and the history of Brown Dwarfs Check out PBS Digital Studios' Above the Noise: "Are Internet Trolls Born or Made?" https://www.youtube.com/watch?v=YLggqoPEfJU Creator: Dianna Cowern Editing: Jabril Ashe Original animations: Kyle Norby Thanks to Daniella Bardalez Gagliuffi! http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl PO Box 9281 San Diego, CA 92169 Original article theorizing brown dwarfs: http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1962AJ.....67S.579K&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf Sources and more reading: http://www2.lowell.edu/workshops/coolstars18/ http://adsabs.harvard.edu/abs/1995Natur.378..355M https://arxiv.org/abs/1506.03178
Views: 349107 Physics Girl
Everything you should know about TRAPPIST-1 exoplanets
 
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The TRAPPIST-1 exoplanet system has seven earth-like planets and is only 39 lightyears away! I am joined by Professor Adam Burgasser and Dr. Katherine Deck, both astrophysicists on the Nature paper to discuss the discovery of this planetary system. Check out this TRAPPIST video by PBS SpaceTime! https://www.youtube.com/watch?v=h871oE5QkTU Subscribe to Physics Girl: https://www.youtube.com/subscription_center?add_user=physicswoman Join exclusive, nerdy Physics Girl mailing list: http://physicsgirl.org/ http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Creator: Dianna Cowern Editor, Videographer, Host, Head Nerd, Puller-of-all-Nighter-to-Finish-Video: Dianna Cowern Visuals: ESO/NASA Ocean Visual: Pixabay Music: APM/YouTube Sources: https://www.jpl.nasa.gov/spaceimages/details.php?id=PIA21428 http://www.nature.com/nature/journal/v542/n7642/full/nature21360.html http://www.nature.com/news/these-seven-alien-worlds-could-help-explain-how-planets-form-1.21512
Views: 183691 Physics Girl
Can you guess this note? Perfect Pitch and Physics
 
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What is perfect pitch, or absolute pitch? Can it be learned? How does timbre, or the type of instrument affect perfect pitch? Physics explains! phyphox app: http://phyphox.org Audio wave website: https://meettechniek.info/additional/additive-synthesis.html Creator: Dianna Cowern Editor: Jabril Ashe & Dianna Cowern Videography: Eric Birkemeier Animations: Kyle Norby Story Consultant: Kate Furby Many thanks to Anna, Miren, Jeff, Cat, Teresa and Idella! Sources and further reading: http://asa.scitation.org/doi/10.1121/1.4808626 https://www.ncbi.nlm.nih.gov/books/NBK11007/ https://news.uchicago.edu/article/2015/05/28/acquiring-perfect-pitch-may-be-possible-some-adults https://www.sciencedaily.com/releases/2015/05/150528123917.htm https://www.researchgate.net/publication/41194498_Learning_the_Special_Note_Evidence_for_a_Critical_Period_for_Absolute_Pitch_Acquisition http://www.sciencedirect.com/science/article/pii/S0010027715000621
Views: 199488 Physics Girl
Fun with Vortex Rings in the Pool
 
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Create half-ring vortices in a pool by sliding a plate through water and adding food coloring to the ends. Music by Michael R Miller - https://soundcloud.com/michaelrmmiller Original vortex video here: https://www.youtube.com/watch?v=pnbJEg9r1o8 Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Instagram: http://instagram.com/thephysicsgirl Twitter: http://www.physicsgirl.org/twitter Facebook: http://www.physicsgirl.org/facebook http://www.physicsgirl.org/ Many thanks to the Vlogbrothers for sponsoring this video.
Views: 606377 Physics Girl
What weightlessness feels like on Zero-G planes
 
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Check out Bruce’s zero g video on e-penser! https://youtu.be/lVTTpKShVtE Check out Derek’s video on Veritasium! https://youtu.be/xdJwG_9kF8s Try Squarespace at https://squarespace.com/physicsgirl and use code "PHYSICS" for a 10% discount. The zero g plane, also known as a parabolic flight, or the vomit comet, flies in parabolic trajectories to give a brief experience of weightlessness. This flight, operated by Novespace in Bordeaux, France, offered 14 weightless parabolas, 2 parabolas with a simulation of moon gravity, and one with Mars gravity. I brought some demos to try out on the vomit comet, with little to no success. But who can ever prepare for these weightless things? Watch to find out whether I threw up! Creator: Dianna Cowern Animator: Kyle Norby Resident physics PhD student: Dan Walsh http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl music: APM
Views: 589343 Physics Girl
My dad was hit by lightning (TWICE!)
 
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My dad has been hit by lightning twice! This is an interview with him about those incidents. Plus we chatted about the science behind a lightning strike, which it's so dangerous, and how to avoid getting hit. http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Creator: Dianna Cowern Editor: Jabril Ashe and Dianna Cowern Writer: Sophia Chen Special thanks to Ashley Warner, Kyle Kitzmiller, and mama and papa Cowern. Stock visuals: Pixabay.com, shutterstock.com Music: APM and YouTube
Views: 118948 Physics Girl
What Size Magnet Can Erase a Credit Card?
 
10:09
Check out Samy's channel: https://youtu.be/UHSFf0Lz1qc Don’t try this at home! The experiments and products shown in this episode were used in the name of science. http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Creator/Host/Writer/Editor: Dianna Cowern Editor: Jabril Ashe Science Consultant: Dan Walsh Videography: Dianna, Jabril and Trace Dominguez Thanks to Rachel Cohen for the idea for this video and for her help! Thank to Casey Wessel, Demetra Airaudi, and Josh from the farmers’ market.
Views: 170591 Physics Girl
Bandaids glow when opening?! - Everyday Mysteries
 
08:03
Bandaids and tape glow an eerie blue when you peel them open. What is going on?! Find out the strange science with Dianna Cowern You can learn more about CuriosityStream at http://curiositystream.com/physicsgirl Study on scotch tape producing x-rays from UCLA: https://www.nature.com/articles/nature07378 Thanks to Smarter Every Day for permission to use a clip from the LIFESAVER LIGHTENING video: https://www.youtube.com/watch?v=tW8q_JfmcbU Resources and Further Reading: https://www.tandfonline.com/doi/abs/10.1080/00018737700101483 https://pubs.acs.org/doi/pdf/10.1021/j150653a007 https://www.sciencedirect.com/science/article/pii/S136970211170147X https://pubs.acs.org/doi/pdf/10.1021/ed056p413 http://physics-journal.org/dnload/B-R-Verma-and-S-K-Patel/PHYSICS-JOURNAL-PHSV06I07P0108.pdf http://science.sciencemag.org/content/89/2316/460 http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Creator: Dianna Cowern Editing & Animations: Jabril Ashe Mailing address: Physics Girl PO Box 9281 San Diego, CA 92169
Views: 259259 Physics Girl
Should you go to Mars? ft Bill Nye
 
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Check out The Great Courses Plus: http://ow.ly/BHuT301cR6Z Would you take a trip to Mars knowing the risks? What if it were a one way trip? Should we colonize Mars? I took a trip over to the Planetary Society to meet with CEO and Science Guy, Bill Nye to discuss the potential for future human travel and exploration to Mars. Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator: Dianna Cowern Editor: Jabril Ashe Animator: Kyle Norby Researcher: Sophia Chen Space footage: NASA Resources: “Evidence for an ancient martian ocean in the topography of deformed shorelines” http://www.nature.com/nature/journal/v447/n7146/full/nature05873.html http://science.sciencemag.org/content/340/6136/1080.abstract http://www.planetary.org/blogs/emily-lakdawalla/2008/1710.html?referrer=https://www.google.com/ http://www.theatlantic.com/science/archive/2015/10/mars-magnetic-field-ocean/409021/ http://history.nasa.gov/marschro.htm https://www.washingtonpost.com/national/health-science/nasa-curiosity-rover-discovers-evidence-of-fresh-water-mars-lake/2013/12/09/a1658518-60d9-11e3-bf45-61f69f54fc5f_story.html http://mars.nasa.gov/multimedia/videos/?v=294 Olympus Mons Colored image: NASA/Goddard Space Flight Center Scientific Visualization Studio, and Virginia Butcher (SSAI) Thanks to the Planetary Society and Bill Nye! planetary.org Music: APM and YouTube “Quirky Affairs” “Fishes Waltz” “Built Together Marimba” “Expectant View” “Moments Musicaux Op 94 3” “On the Bach” (YouTube) Sound Effects: APM
Views: 303168 Physics Girl
The Boat/Rock Brainteaser ft Simone Giertz part 2/3
 
06:31
Video on Simone's channel! https://www.youtube.com/watch?v=O3G9PuDZ_8c&t=40s Simone's channel: https://www.youtube.com/channel/UC3KEoMzNz8eYnwBC34RaKCQ First riddle video: https://www.youtube.com/watch?v=qplG78Guaa4 0:22 - riddle #1 - the falling wooden and iron balls 1:54 - answer to riddle #1 4:20 - simone asks me a question about transistors! 5:40 - riddle #2 - the boat/rock puzzle Creator: Dianna Cowern Editor: Jabril Ashe & Dianna Cowern Thanks to Dan Walsh and Kyle Norby! Subscribe to Physics Girl for more fun physics! https://www.youtube.com/subscription_center?add_user=physicswoman Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Twitter: http://twitter.com/thephysicsgirl Facebook: http://facebook.com/thephysicsgirl Instagram: http://instagram.com/thephysicsgirl
Views: 267098 Physics Girl

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