Uploaded March 2023 | Updated September 2026, 3 weeks ago
This is some unseen footage of when Dianna went to Death Valley to investigate the mysterious moving rocks!
Full Video - youtube.com/watch?v=JFFhD5HeByM&ab_channel=PhysicsGirl
Support Physics Girl videos → patreon.com/physicsgirl
Music provided by APM
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Special thank you to our X-ray Patrons - Elvis Yang, Richard Pearce, Valerio, Tim McDonnell, Mandy Waite, Cadmus Antheia, zudasworld, Yu, Glenn Trewitt, Richard Fellows, Robert Vandiver, Kerry Hormann, WILLIAM SCHAEFFER, Michael Buelow, William Aust, Forrest Christian, Christopher Walker, Doug Campbell, samy kamkar, Robert Richmond, Kaia, blueliner2293, dssyenon, Michael, CodeToGrow, Hasan Schwandes, Robin Colburn, Dustan Denton, flux, Kelly Turner, Stanley Wong, Morgan McLeod, Roman Dzięcioł, laurie carson, Robrecht Dewaele, Andy Weir, dfg, Natorade, Mark Vasile, Jesse Ambrose, David York, mz, Kat, Dylan Restivo, Adrian Liu, Joshua Joseph, dino@deanlm.com, Shuhei Shimizu, Adrian Cassidy, Matthew Kahler, PaxAndromeda, Jay Severa, Adam Levine, Xweetalk, Gary Silverman, Jonathan Hart, Zlatko Randjelovic, Jimmy Ngu, Chua Yao Teng, Thomas BOUTON, Andrew, danielhaemin, s/v Eliana, Steven Sadoway, Matt Welke, Herkimer Aloysius, Blake Dunn, Matthew, Jaime Castells, Greg, Dan Stein, David Prime, KipV, Zuspan, Michael Long, Willy Kang, Nic, The Upward Education, Mrudula Satarkar, Jason Hendricks, John Tyler, Tim Ballew, David Taylor, Akhil Kanna, Taylor Sage, John Norton, Ameya Joshi, SwedishDeathLlama, Konstantin, Andreas Lianos, Ethan lusby, cameron, Einar Mikkelsen, Aditya Alluri, Micah Rollins, Jason J, Joshua Beck, Anonymous, Ed, Matthew Angelle, Neil Aggarwal, Marco Mena, Justin Lowery, Mason D Lybrand, Kyle Harkness, Stefan Kaczmarek, Ashwin Ramaswamy, justine, Ben Harrison, Aditya Rane, Eric Rosen, Alex OfTheWired, Maria Fossbakk, Luke Sluder, Andrew Sussman, Louis Turek, Michael Wagner, Paul Faria, Michael Burgermeister, Eric Jones, Brian Cheldelin, Aspry Writes, Michael Glisson, Trent O, Scott Meola, Daniel Koeneman, Lacy Garrison, David Huynh, Mike Green, Brad Hullett, Logan Janney, Adam Honeycutt, Argyle Sox, DONALD McLeod, Scott Ellis, bgbng, Leif Jones, Laura Ambrose, Mark Taylor, Jeff Jones, Bubbz, DamnedEyez, Al Jamieson, Soap Ford, R5N, Andrew Lazenby, Jennifer, James Condon, Archer, Velocifox, Zachary, Steven Sorenson, Bill N, Michele Robichaux, David DiCamillo, Joe Pacheco, Anton Ragin, Lydia Fullard, zoddy, dryfrog, dheeraj mekala, David Johnston, Christopher Kemsley, Adrian Archuleta, Mano Prime, Zoran Dekic, Austin Rose, Gnare, John R Benavides, Bazinga_X, Mike Schneider, marcss, James Prokop, Carlos Patricio, Tommy Joseph, Todd Beattie, jeremy glowacki, Vishal Bedi, Matt Kaminski, Andrew Herstek, Vincent Argiro, Ryan Kelley, Eddie Sabbah, Patrick Olson, John Zelinka, Chris Wyma, Zalster, David Cichowski, Vikram Bhat, Vladislav Kuzemchik, Margaux Lopez, Edi, Kenneth Hunter, Fabrice Eap
Editor/Videographer: Levi Butner
physicsgirl.org
twitter.com/thephysicsgirl
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This is some unseen footage of when Dianna went to Death Valley to investigate the mysterious moving rocks!
Full Video - youtube.com/watch?v=JFFhD5HeByM&ab_channel=PhysicsGirl
Support Physics Girl videos → patreon.com/physicsgirl
Music provided by APM
apmmusic.com
Special thank you to our X-ray Patrons - Elvis Yang, Richard Pearce, Valerio, Tim McDonnell, Mandy Waite, Cadmus Antheia, zudasworld, Yu, Glenn Trewitt, Richard Fellows, Robert Vandiver, Kerry Hormann, WILLIAM SCHAEFFER, Michael Buelow, William Aust, Forrest Christian, Christopher Walker, Doug Campbell, samy kamkar, Robert Richmond, Kaia, blueliner2293, dssyenon, Michael, CodeToGrow, Hasan Schwandes, Robin Colburn, Dustan Denton, flux, Kelly Turner, Stanley Wong, Morgan McLeod, Roman Dzięcioł, laurie carson, Robrecht Dewaele, Andy Weir, dfg, Natorade, Mark Vasile, Jesse Ambrose, David York, mz, Kat, Dylan Restivo, Adrian Liu, Joshua Joseph, dino@deanlm.com, Shuhei Shimizu, Adrian Cassidy, Matthew Kahler, PaxAndromeda, Jay Severa, Adam Levine, Xweetalk, Gary Silverman, Jonathan Hart, Zlatko Randjelovic, Jimmy Ngu, Chua Yao Teng, Thomas BOUTON, Andrew, danielhaemin, s/v Eliana, Steven Sadoway, Matt Welke, Herkimer Aloysius, Blake Dunn, Matthew, Jaime Castells, Greg, Dan Stein, David Prime, KipV, Zuspan, Michael Long, Willy Kang, Nic, The Upward Education, Mrudula Satarkar, Jason Hendricks, John Tyler, Tim Ballew, David Taylor, Akhil Kanna, Taylor Sage, John Norton, Ameya Joshi, SwedishDeathLlama, Konstantin, Andreas Lianos, Ethan lusby, cameron, Einar Mikkelsen, Aditya Alluri, Micah Rollins, Jason J, Joshua Beck, Anonymous, Ed, Matthew Angelle, Neil Aggarwal, Marco Mena, Justin Lowery, Mason D Lybrand, Kyle Harkness, Stefan Kaczmarek, Ashwin Ramaswamy, justine, Ben Harrison, Aditya Rane, Eric Rosen, Alex OfTheWired, Maria Fossbakk, Luke Sluder, Andrew Sussman, Louis Turek, Michael Wagner, Paul Faria, Michael Burgermeister, Eric Jones, Brian Cheldelin, Aspry Writes, Michael Glisson, Trent O, Scott Meola, Daniel Koeneman, Lacy Garrison, David Huynh, Mike Green, Brad Hullett, Logan Janney, Adam Honeycutt, Argyle Sox, DONALD McLeod, Scott Ellis, bgbng, Leif Jones, Laura Ambrose, Mark Taylor, Jeff Jones, Bubbz, DamnedEyez, Al Jamieson, Soap Ford, R5N, Andrew Lazenby, Jennifer, James Condon, Archer, Velocifox, Zachary, Steven Sorenson, Bill N, Michele Robichaux, David DiCamillo, Joe Pacheco, Anton Ragin, Lydia Fullard, zoddy, dryfrog, dheeraj mekala, David Johnston, Christopher Kemsley, Adrian Archuleta, Mano Prime, Zoran Dekic, Austin Rose, Gnare, John R Benavides, Bazinga_X, Mike Schneider, marcss, James Prokop, Carlos Patricio, Tommy Joseph, Todd Beattie, jeremy glowacki, Vishal Bedi, Matt Kaminski, Andrew Herstek, Vincent Argiro, Ryan Kelley, Eddie Sabbah, Patrick Olson, John Zelinka, Chris Wyma, Zalster, David Cichowski, Vikram Bhat, Vladislav Kuzemchik, Margaux Lopez, Edi, Kenneth Hunter, Fabrice Eap
Editor/Videographer: Levi Butner
physicsgirl.org
twitter.com/thephysicsgirl
facebook.com/thephysicsgirl
instagram.com/thephysicsgirl







![Are planes safe during COVID?
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:
https://www.youtube.com/watch?v=1JgBp7dX4AU
Only some humans can see this type of light:
https://www.youtube.com/watch?v=CSu0cV3fqi8
Creator/Host: Dianna Cowern
Video Editing: Levi Butner
Research/writing: Sophia Chen
Writing/Editing: Dianna Cowern
Special thanks to our Sally Ride Patrons!
Special thanks to our Sally Ride level patrons: Alejandro Gutierrez, Brian OConnell, 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
Thanks to Malin Alsved, Hope Butner and Kyle Kitzmiller.
http://physicsgirl.org/
http://twitter.com/thephysicsgirl
http://facebook.com/thephysicsgirl
http://instagram.com/thephysicsgirl
Credits:
Some Stock footage provided by Videvo, downloaded from www.videvo.net
Resources:
https://pdfs.semanticscholar.org/3a69/98741b1e14fe3e15d5fe0bc6ed4e58d83475.pdf?_ga=2.94557724.129545850.1594340593-1120174445.1589328977
[1977 info and H1n1 stat are in Lei 2017, with further details about 1977 flight here: http://blog.h1n1.influenza.bvsalud.org/en/2009/09/28/influenza-air-transmission/]
[THERE’S THIS VERY COMPREHENSIVE TABLE OF RECOMMENDATIONS FROM A TRADE ASSOCIATION, THAT IS COOL TO JUST RUN THROUGH. YOU CAN PICK THE EXAMPLES YOU LIKE, BUT I’LL JUST HIGHLIGHT A FEW THAT I FOUND INTRIGUING.]
https://www.ashrae.org/File%20Library/Technical%20Resources/Standards%20and%20Guidelines/Standards%20Addenda/62-2001/62-2001_Addendum-n.pdf
[Source: https://www.designingbuildings.co.uk/wiki/Indoor_air_velocity]
http://epibulletins.dhss.alaska.gov/Document/Display?DocumentId=888
https://www.smithsonianmag.com/smart-news/study-maps-how-flu-virus-moves-around-plane-180968541/
Transmission of COVID-19 virus by droplets and aerosols: A critical review on the unresolved dichotomy
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7293495/
https://lbourouiba.mit.edu/sites/default/files/documents/14BourouibaBush-sneezecloudJFM_corrected.pdf
https://up.codes/s/outdoor-airflow-rate
https://www.technologyreview.com/2020/07/07/1004841/a-group-of-239-scientists-say-theres-growing-evidence-covid-19-is-airborne/?itm_source=parsely-api
Timeline of COVID-19
https://www.who.int/emergencies/diseases/novel-coronavirus-2019/events-as-they-happen
https://www.who.int/emergencies/diseases/novel-coronavirus-2019/technical-guidance/naming-the-coronavirus-disease-(covid-2019)-and-the-virus-that-causes-it#:~:text=The%20International%20Committee%20on%20Taxonomy,two%20viruses%20are%20different.
Ventilation rates on airplanes:
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.304.7321&rep=rep1&type=pdf
Ventilation rates inside:
https://www.epa.gov/indoor-air-quality-iaq/how-much-ventilation-do-i-need-my-home-improve-indoor-air-quality
Transmission rates on airplanes
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7165818/ Are planes safe during COVID?](https://i.ytimg.com/vi/NUCru4p15-4/mqdefault.jpg)


