Be Smart.

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Uploaded 23-07-20

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Bottom line: Masks work. They are safe for almost everyone to wear, and the more people that wear them along with adhering to physical distancing and other strategies, then that's more lives we'll save. But there's still a lot of confusion and misinformation out there when it comes both to wearing masks and the actual risks of getting infected with COVID-19. In this video, I address a few of the most common myths and misunderstandings using scientific evidence. #WearAMask

00:00 Introduction
00:46 Myth 1: Farts vs. viral particles
02:20 Myth 2: Cloth masks can't stop viruses
03:25 Myth 3: Oxygen deprivation/CO2 poisoning
05:40 Myth 4: Toxins
06:41 Myth 5: I feel healthy so I don't need a mask
07:51 Myth 6: Masks aren't 100% effective, so why wear one?
08:34 Mask-wearing history
09:25 Myth 7: Government mask exemptions
10:24 Myth 8: COVID isn't a big deal
12:09 Conclusion

Watch our previous video about masks: https://youtu.be/0Tp0zB904Mc

Our entire COVID-19 playlist: https://www.youtube.com/playlist?list=PLsmqeqKj7M-pvu23aAUn6gtvDZAymnZ0K

References: https://sites.google.com/view/covid-mask-myths-references/home


Special thanks to our Brain Trust Patrons:
AlecZero
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Dustin
Ernesto Silva
George Gladding
Jay Stephens
Marcus Tuepker
Megan K Bradshaw
Peter Ehrnstrom
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Robert Young
vincbis

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Uploaded 25-10-19

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Why are trees and other plants green? Seems like a simple question. But the answer is full of surprises. Using a special camera that can pick up light just beyond the visible range, into the near-infrared, you’ll get to see trees like you’ve never seen them before. And these other-worldly images can teach us not only why trees are green on Earth, but what color photosynthetic life on other planets might be.
#TeamTrees

References: https://sites.google.com/view/treesonotherplanets-references/home

Special thanks to our Brain Trust Patrons:
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Uploaded 14-04-20

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I’ve explained a lot of weird bodily functions on this show but there’s one that we haven’t covered that’s always confused me: Tickling. What are you for, tickling? What’s the point of you? Why do you exist? Why do you make us laugh even though we hate you? Let’s dig into our evolutionary past to try and find an answer.

References:

Laughing, tickling, and speech http://untiredwithloving.org/dhahak.pdf
Pathogenic laughter https://n.neurology.org/content/64/12/2154.short
Tickling review http://charris.ucsd.edu/articles/Harris_EHB2012.pdf
Darwin-Hecker http://charris.ucsd.edu/articles/Harris&Christenfeld_CE1997.pdf
Early thoughts https://www.jstor.org/stable/1411471?seq=1#page_scan_tab_contents
Neural correlates of laughter https://academic.oup.com/cercor/article/23/6/1280/426218
Neural correlates of laughter https://academic.oup.com/brain/article/126/10/2121/314497 Experience of pleasure https://www.ncbi.nlm.nih.gov/pubmed/6877978
Tickling and laughter https://www.sciencedirect.com/science/article/pii/030105119090023P
Ticklish rats https://science.sciencemag.org/content/354/6313/757
Social laughter and pain https://royalsocietypublishing.org/doi/full/10.1098/rspb.2011.1373


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Brent M.
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Ernesto Silva
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This video is so cool, it's ICE COLD
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Uploaded 25-07-17

Glacier ice is weird. It’s solid. Solid things aren’t supposed to flow. But glacier ice flows like a liquid, and it does that without melting! How is this possible? I traveled to Mendenhall Glacier in Juneau, Alaska to find out.

Special thanks to Josh Cassidy from KQED’s Deep Look for joining me in Alaska and shooting this episode! ► https://www.youtube.com/user/KQEDDeepLook

Filmed under a Special Use Permit on the Juneau Ranger District, Tongass National Forest

Archival glacier image: Glacier Photograph Collection - National Snow and Ice Data Center

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READ MORE:

Paterson, William Stanley Bryce. “The Physics of Glaciers.” Elsevier, 2016.

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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi/Josh Cassidy
Writer: Sarah Keartes
Cinematography: Josh Cassidy
Producer/editor/animator: Anastasiya Bulavkina
Producer: Stephanie Noone and Amanda Fox

Produced by PBS Digital Studios
Music via APM
Stock images from Shutterstock http://www.shutterstock.com

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Uploaded 15-02-21

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When is now? Seems like a pretty simple question… just look at your watch. But do you and I share the same “now”? Let’s journey from Einstein’s thought experiments about relativity to cutting edge neuroscience research to try and answer that question.

References: https://sites.google.com/view/when-is-now-references/home

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Uploaded 15-05-18

Axolotls are special salamanders. Not only to they stay in their juvenile form their whole lives, they can regenerate entire limbs! Studying how they do it could change the way we treat human limb injuries.

Special thanks to the Dallas Zoo!

References: http://bit.ly/2Gkoihd

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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Sarah Keartes
Creative Director: David Schulte
Editor/animator: Karl Boettcher and Derek Borsheim
Producers: Stephanie Noone and Amanda Fox

Produced by PBS Digital Studios
Music via APM
Stock images from Shutterstock http://www.shutterstock.com

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