Circular Motion – Physics 101 / AP Physics 1 Review with Dianna Cowern

Lesson 7 (Circular Motion) of Dianna’s Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this video: Problem1: You have a one kilogram ball on a two meter long string. You […]

Friction – Physics 101/Ap Physics 1 Review with Dianna Cowern

Lesson 6 (Friction) of Dianna’s Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this video: Problem1: The coefficient of friction between your car’s tires and concrete is 0.7. Your car’s […]

Free Body Diagrams – Physics 101/AP Physics 1 Review with Dianna Cowern

Lesson 5 (Free Body Diagrams) of Dianna’s Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this video: Problem 1: Draw a free body diagram (FBD) for a bottle of nail […]

Why it’s impossible to make a red bubble… or IS it?!

Take a look at a bubble and you’ll see all the colors of the rainbow… right? WRONG. Bubbles are actually missing colors! Check out Self-Evident on PBS Voices: https://youtu.be/Bwsne4eMVyU My Patreon! https://www.patreon.com/physicsgirl If you liked this video, check out: Only some humans can see this type of light: bit.ly/pgpolarized How rainbows with NO COLOR are […]

Newton’s Laws of Motion – Physics 101 / AP Physics 1 Review – Dianna Cowern

Lesson 4 (Newton’s Laws of Motion) of Dianna’s Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this video: Problem 1: You push your square space cow, mass 5kg, with a […]

2D Motion – Physics 101 / AP Physics 1 Review with Dianna Cowern

Lesson 3 (2D Motion & Kinematics) of Dianna’s Intro Physics Class on Physics Girl. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this video: Problem 1 You’re jumping off a 10m high cliff with an initial […]

Trig Review for Physics – Common Math Tools – Physics 101, AP Physics 1 Review with Physics Girl

Creator/Host/Writer: Dianna Cowern Producer: Laura Chernikoff Head Writer: Jeff Brock Researcher/Writer: Sophia Chen Editor: Levi Butner Exercises in this video: Problem 1: 1. You are running north-east at a speed of 4 m/s. What component of your velocity is north? How about east? Problem 2: You are kite-surfing and your kite is pulling you upwards […]

Why Masks Work BETTER Than You’d Think

Thanks to the Heising-Simons foundation for their support: https://www.hsfoundation.org (their COVID-19 grants: https://www.hsfoundation.org/grants/covid-19-response-grants/ ) Check out https://aatishb.com/maskmath to explore and for references. This video is about how masks (whether surgical, or N95, or cloth) are counterintuitive and actually work much better epidemiologically than one might expect. Masks do double-duty, and the fraction of interactions with […]

I WAS THERE! How David Blaine flew helium balloons to the height of jets (and jumped)

Check out David Blaine’s video with Physics Girl’s Dianna Cowern: https://www.youtube.com/watch?v=HZCJ8kZ2IKY ASCENSION full Livestream: David Blaine casually floated up to 25,000ft over the Arizona desert holding 52 helium balloons. I was invited to witness the testing and preparation! Thanks to David Blaine, Luke Aikins, and the rest of the team for having us and for […]

Freefall – Physics 101 / AP Physics 1 Review with Dianna Cowern

Lesson 2 of Dianna’s Intro Physics Class on Physics Girl. Topic: Freefall. Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this video: Problem 1: If we drop a wrecking ball from a height of 35 meters, […]

Fact-Checking this Viral Bottle Trick

Breaking the bottom out of a glass bottle by hitting the top is a challenging trick, but involves a ton of physics. The explanation is related to cavitation – a process seen in the Mantis Shrimp attack, head injuries and pouring honey! Creator/Host/Writer: Dianna Cowern Editor/Videographer: Levi Butner Research/Writer: A.J. Fillo Research: Meredith Fore Slow […]

Dianna’s Intro Physics Class: Trailer – Physics 101, AP Physics 1 Review with Physics Girl

Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! In this class we will cover these topics: 1D Motion Free Fall 2D Motion Newton’s Laws Free Body Diagrams Friction Circular Motion Gravity & Orbits Energy & Work Energy Conservation […]

1D Motion & Kinematics – Physics 101 aka AP Physics 1 Review with Dianna Cowern

Never taken physics before? Want to learn the basics of physics? Need an AP Physics 1 review before the exam? This course is for you! Exercises in this video: PROBLEM 1 A girl is riding her bike with a constant velocity of 10 m/s. How far has she gone after 7 seconds? Graph her motion […]

38 People on this Flight Got Sick. Why? – The Science of Ventilation

How likely are you to get sick on an airplane? How safe are airplanes? The science of ventilation and bioaerosol research. If you liked this video, check out: What stretching actually does to your body: Only some humans can see this type of light: Creator/Host: Dianna Cowern Video Editing: Levi Butner Research/writing: Sophia Chen Writing/Editing: […]

Insanely Fun DIY Science Experiments at Home with Physics Girl

If you liked this video check out these: HOME CHALLENGE: 20 Easy Experiments in 5 mins Laser Cooling: Special thanks to our Sally Ride level patrons: Alejandro Gutierrez, Brian O’Connell, David Cichowski, Fabrice Eap, Henning Bitsch, Kenneth Hunter, Margaux Lopez, Patrick Olson, Vikram Bhat, wc993219. Join the Physics Girl Patreon community! ►► https://www.patreon.com/physicsgirl Creator/Host: Dianna […]

The Astounding Physics of N95 Masks

Head to https://brilliant.org/MinutePhysics to sign up for free and get 20% off a Premium subscription to Brilliant! This video was written in collaboration with Aatish Bhatia – https://aatishb.com To learn more about using & decontaminating N95 masks: https://www.n95decon.org Thanks to Manu Prakash for useful discussion and feedback (Manu is involved with the N95 decontamination project) […]

I Dipped my Hand into Boiling Hot Oil – Leidenfrost Effect?

Dipping hand in boiling hot oil to demonstrate physical properties! Check out Prideland on PBS Voices: https://youtu.be/ZETEru4Xepk Check out PBS Deep Look https://www.youtube.com/channel/UC-3SbfTPJsL8fJAPKiVqBLg Check out PBS Above the Noise https://www.youtube.com/channel/UC4K10PNjqgGLKA3lo5V8KdQ Water in Boiling Oil – Nick Moore Check Out Nick’s channel! https://www.youtube.com/channel/UCT7EuC-o1dMvz-hatkytk9w Special thanks to our Sally Ride level patrons: Alejandro Gutierrez, Brian O’Connell, David […]

Unique at-home Science Experiments! with Physics Girl

Dianna from Physics Girl walks through 5 experiments with jello, lasers, balloons, surface tension, band-aids and candles, with some bonus facts and trivia! If you liked this video check out these other Physics Girl videos: 7 Science Tricks with Surface Tension HOME CHALLENGE: 20 Easy Experiments in 5 mins for Bored Adults and Kids at […]

“Of course it’s scary.” – Candid Interview with COVID-19 ER Nurse and Epidemiologist

Dianna from Physics Girl interviews an ER Nurse Practitioner and an Epidemiologist about their experiences with the COVID-19 pandemic. Support more science content like this by joining my Patreon community! http://patreon.com/physicsgirl Many things to my Sally Ride Level Patrons on Patreon Sally Rides: Alejandro Gutierrez, Brian O’Connell, David Cichowski, Fabrice Eap, Henning Bitsch, Kenneth Hunter, […]

Ballistic Ping Pong Ball vs. Tennis Ball at 450km/h!

What happens when you shoot a ballistic ping pong ball going 450kph at a tennis ball? Check out Brandon’s iPhone video on GizmoSlip: https://youtu.be/JYivWedGCKc Support more physics content like this by joining our Patreon community! http://patreon.com/physicsgirl Many things to my Sally Ride Level Patrons on Patreon Sally Rides: Alejandro Gutierrez, Brian O’Connell, Darkbit, David Cichowski, […]

How Soon Will COVID-19 Peak? (And How To Tell)

This video made possible with support of Brilliant – the first 200 subscribers to go to http://Brilliant.org/MinutePhysics get 20% off a Premium subscription to Brilliant. Go to http://aatishb.com/covidtrends to see the interactive graph RESOURCES Grant’s 3Blue1Brown Video: Exponential Growth and Epidemics: https://www.youtube.com/watch?v=Kas0tIxDvrg Aatish’s Exponential/Logistic Curve-Fitting Site: https://github.com/aatishb/covid/blob/master/curvefit.ipynb Data Source: https://github.com/CSSEGISandData/COVID-19 Our World in Data Page […]

HOME CHALLENGE: 20 Easy Experiments in 5 mins for Bored Adults and Kids at School Inside

Are you a bored adult or a parent stuck at home during the coronavirus quarantine? Try these DIY science experiments! Join my Patreon Community! ▶▶▶ http://patreon.com/physicsgirl SAFETY TIPS FOR TEA BAG ROCKET • Flammable surfaces: DO NOT light tea bags on a flammable surface. Experiment should be conducted on a fireproof surface, like a metal […]

Tricky Spoon Riddle – What happens to your reflection if you bend a spoon inward?

Physics Girl riddle: what happens to your image if you bend a spoon from concave to convex? Check out Antarctic Extremes on PBS Terra: https://www.youtube.com/watch?v=EvRAuy1ZmTc If you like riddles, check out these: Can you solve the boat puzzle? Which tank fills first? ft. Simone Giertz Creator/Host: Dianna Cowern Editor: Levi Butner Animations: Levi Butner, Keegan […]

How to Tell Matter From Antimatter | CP Violation & The Ozma Problem

This video was made with the support of the Heising Simons Foundation. Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/ This video is about the Ozma problem of distinguishing the chirality (ie left-handedness or right-handedness) of matter using weak interaction processes like beta decay (for example in uranium), or neutral kaon/k-meson decay. This […]

This thing is -270°C and is EVERYWHERE

Download the PBS Video App: https://www.pbs.org/pbs-video-app/ The universe is microwaving itself. A mystery signal discovered in the 1960s led to a Nobel prize. In this video, Dianna explores one of the most mysterious discoveries in physics – a constant microwave signal that seemed to be coming from everywhere in the universe. It turned out to […]

Hacking the Periodic Table

Go to https://Brilliant.org/MinutePhysics to gift Brilliant Premium for the holidays, and for 20% off! This video is about cutting, taping, and rearranging the periodic table into the Left Step form, the Mendeleev’s flower form, the cake form, the wide form, the standard form, and so on. A great holiday craft!! REFERENCES Alternate Periodic Tables https://en.wikipedia.org/wiki/Alternative_periodic_tables […]

Why Do Mirrors Flip Left & Right (but not up & down)?

Go to https://curiositystream.com/minutephysics to check out MinuteBody, and for a free month of CuriosityStream PLUS Nebula! Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/ This video is about why words flip left & right (aka horizontally) in a mirror but not up & down (aka vertically). The answer has to do with specular […]

Why This Stuff Costs $2700 Trillion Per Gram

Physics Girl is on Patreon! ►► https://www.patreon.com/physicsgirl There’s a factory in Europe that makes antimatter! It’s the rarest, most expensive, and potentially the most dangerous material on earth. Scientists don’t know why this material is so rare. Anti-atoms took 72 years after we discovered antimatter to make. Why? Thanks to CERN, Elise Wursten, Loïc Bommersbach […]

Do Photons Cast Shadows?

Thanks to CuriosityStream for their support. Go to http://www.curiositystream.com/minutephysics to watch Particle Fever and get Nebula! Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/ This video is about two-photon (gamma-gamma) physics, and how photons can interact with each other – either mediated by a passing lepton, or gravitationally via lensing, or via vacuum […]

Most People Don’t Know Wine Does This

Wine legs aka wine tears or wine fingers are stranger than they seem. Check out Vsauce3 Can You Survive the Movies! Zero G with Veritasium and e-penser: Bursting Dropletes – The Lutetium Project Thanks to http://physicsgirl.org/ Tweets by thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Creator/Host: Dianna Cowern Editor: Levi Butner Writer: Anna Leonard Producer: Imogen Ashford Thanks to […]

World’s Largest Optical Lens

The world’s largest digital camera is currently being assembled at a warehouse in California. PBS Survey:  https://www.pbsresearch.org/c/r/PG_YTvideo We caught the short window of time to see the camera’s massive lens.  If you liked this video check out these: Giant Truck Camera Obscura https://www.youtube.com/watch?v=qIp9kItDUh8 Could you replace your eye with a camera? https://www.youtube.com/watch?v=psp_8xJfeWU Thanks to the LSST team […]

When It’s OK to Violate Privacy

Go to http://www.dashlane.com/minutephysics for a free 30 day trial and 10% discount with offer code ‘minutephysics’ Watch the main video here: https://www.youtube.com/watch?v=pT19VwBAqKA Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/ REFERENCES Cynthia Dwork (key inventor of Differential Privacy), giving a great intro talk about differential privacy Hazards of Smoking: the Effect on Life […]

Protecting Privacy with MATH (Collab with the Census)

This video was made in collaboration with the US Census Bureau and fact-checked by Census Bureau scientists. Any opinions and errors are my own. For more information, visit https://census.gov/about/policies/privacy/statistical_safeguards.html or search “differential privacy” at http://census.gov. REFERENCES Differential Privacy in the Wild: http://www.vldb.org/pvldb/vol9/p1611-machanavajjhala.pdf Harvard University Privacy Tools Project: https://privacytools.seas.harvard.edu/differential-privacy Simons Institute Workshop Video Recordings and Articles Archive: https://simons.berkeley.edu/workshops/schedule/6281 Cynthia Dwork […]

What happens when black holes collide? Extended Interview With Gravitational Wave Expert

You can learn more at https://kiwico.com/physicsgirl to check out a special offer from KiwiCo! What happens when black holes collide? What is the speed of gravity? There are so many weird questions related to gravitational waves. Why are there giant concrete tunnels in the desert? – https://www.youtube.com/watch?v=DjcS1kRkc6M If you liked this video check out these: […]

How to Build a Lava Moat (with xkcd)

Where to Buy “How To” by Randall Munroe: · PRH.com: https://bit.ly/2L2G5hy · Amazon: https://bit.ly/2zfy974 · Barnes and Noble: https://bit.ly/2Zozxmt · IndieBound: https://bit.ly/2ZfwSre · Books-A-Million: https://bit.ly/2ZfxD3y · Apple Books: https://bit.ly/33TK3kX The world’s most entertaining and useless self-help guide, from the brilliant mind behind the wildly popular webcomic xkcd and the #1 New York Times bestsellers What […]

Why are there giant concrete tunnels in the desert?

The Physics Girl team visited LIGO once again. This place is Dianna’s obsession. If you liked this video check out these: I Visited the First Gravitational Wave Detector! LIGO | STELLAR Why aren’t plants black? :herb: Thanks to LIGO Hanford, Michael Landry, Amber Strunk, Sharan Banagiri and Salvatore Vitale. http://physicsgirl.org/ Tweets by thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl […]

Why Some Days Aren’t 24 Hours

Check out the “What is a Day?” interactive video at https://labs.minutelabs.io/what-is-a-day/ It’s super cool!! (and made by Jasper Palfree & the MinuteEarth/MinutePhysics team) The MinutePhysics video about Why December Has the Longest Days: https://www.youtube.com/watch?v=nZMMuv0Ltyo This video is about the length of a solar day vs a stellar day vs a mean standard day, what they […]

Testing What Exercise Actually Does to Your Butt

Check out Cassey’s Video! https://youtu.be/AW6TZVwP-FA New Merch Launched! https://store.dftba.com/collections/physics-girl Cassey and I investigate the biomechanics of butts. What activates your butt muscles more, running or squatting? How effective are bridges as a butt workout? How much can we change the shape of our bodies with exercise? http://physicsgirl.org/ Tweets by thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl Creator/Host: Dianna Cowern […]

Einstein’s Biggest Blunder, Explained

Thanks to Brilliant for supporting MinutePhysics. Get 20% off a premium subscription at https://www.Brilliant.org/minutephysics This video is about how Albert Einstein made a mistake when applying the Field Equations of General Relativity to cosmology (in particular, to a static, constant density universe), and solved the problem by introducing the cosmological constant, rather than allowing for […]

The Hardest Exam I Ever Took at MIT in Physics

You can learn more at https://kiwico.com/physicsgirl to check out a special offer from KiwiCo! Check out Toby’s channel, Tibees: https://www.youtube.com/watch?v=I4XdXRPHhqM where we attempt an MIT entrance exam from 1876 Here’s a link if you want to see the whole 8.012 final exam from fall, 2008. https://ocw.mit.edu/courses/physics/8-012-physics-i-classical-mechanics-fall-2008/exams/final.pdf Unboxing an MIT Physics Exam from the 8.012 Classical […]