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...

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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...

Jun 2020

How To Tell If We're Beating COVID-19

This video made possible with support of Brilliant - the first 200 subscribers to go to http://Brilliant.org/MinutePhysics">http://Brilliant.org/MinutePhysics get 20% off a Premium subscription to Brilliant. Go to http://aatishb.com/covidtrends">http://aatishb.com/covidtrends to explore the graph from the video yourself! RESOURCES Grant's...

Mar 2020

How to Detect Antimatter Aliens | 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">http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/">http://www.minutephysics.com/supporters/ This video is about the Ozma problem of distinguishing...

Feb 2020

Hacking the Periodic Table

Go to https://Brilliant.org/MinutePhysics">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!!...

Dec 2019

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

Go to https://curiositystream.com/minutephysics">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">http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/">http://www.minutephysics.com/supporters/...

Dec 2019

Do Photons Cast Shadows?

Thanks to CuriosityStream for their support. Go to http://www.curiositystream.com/minutephysics">http://www.curiositystream.com/minutephysics to watch Particle Fever and get Nebula! Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics">http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/">http://www.minutephysics.com/supporters/...

Nov 2019

The Man Who Corrected Einstein

Sign up for Brilliant FOR FREE at http://brilliant.org/minutephysics">http://brilliant.org/minutephysics - the first 200 people get 20% of a premium subscription. This video is about how Russian physicist Aleksandr Fridman corrected Albert Einstein about the expansion of the universe. Einstein thought that general relativity implied that space had...

Oct 2019

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...

Sep 2019

How To Protect Privacy with Math (Collab with the US 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...

Sep 2019