Be Smart.

By Joe HansonScience Education Natural Sciences

Be Smart. episodes

October 10 Are We All Family?
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This is part 3 of our special series on Human Ancestry!
Watch the entire series here ►► http://bit.ly/OKTBSHuman
↓↓↓More info and sources below ↓↓↓
In part 3 of our special series on human ancestry, we investigate how closely related we all really are. Basic math tells us that all humans share ancestors. But you’ll be amazed at how recently those shared ancestors lived. Thanks to genetic data in the 21st century, we’re even discovering that we really are all descended from one mother.
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REFERENCES:
Chang, Joseph T. "Recent common ancestors of all present-day individuals." Advances in Applied Probability 31.04 (1999): 1002-1026.
Jorde, Lynn B. "Genetic variation and human evolution." (2003).
Rohde, Douglas LT. "On the common ancestors of all living humans." (2003)
Rohde, Douglas LT, Steve Olson, and Joseph T. Chang. "Modelling the recent common ancestry of all living humans." Nature 431.7008 (2004): 562-566.
Stringer, Chris. “Lone survivors: How we came to be the only humans on earth.” Macmillan, 2012. http://amzn.to/2oIFg3q (Library: http://www.worldcat.org/oclc/855581724)
Tattersall, Ian. “Masters of the planet: the search for our human origins.” Macmillan, 2012. http://amzn.to/2pOZrKS (Library: http://www.worldcat.org/oclc/733231407)
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It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Director: Joe Nicolosi
Writer: Joe Hanson
Producer/editor/animator: Andrew Matthews
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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9 min
October 10 What is Impossible in Evolution?
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Uploaded 17-03-21

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Could humans ever evolve to have wings? Why don’t fish have propellers? Why don’t tigers have wheels? Why don’t zebras have laser turrets? These might all seem like stupid questions (and maybe they are!) but they can teach us a lot about how evolution actually works, and how it doesn’t work.

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

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24 min
October 10 There Was No Inaugural Human
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If you traced your family tree back 185 million generations through evolution, you wouldn't be looking at a human, a primate, or even a mammal. You'd be looking at a fish. So where along that line does the first human show up? The answer may surprise you!
Inspired by Richard Dawkins' "The Magic of Reality" http://amzn.to/1eFPE0v
Also check out Richard Dawkins' "The Ancestor's Tale" http://amzn.to/1fbf17e
Images of prehistoric species used in this episode:
Tiktaalik, Procunsul, Plesiadapsis, Juramaia, Hylonomus - by Nobu Tamura (http://spinops.blogspot.com/)
Homo erectus (by Tim Evanson) http://bit.ly/1uwI5zu
Joe Hanson - Host and writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Katie Graham - Director of Photography
Andrew Matthews - Editor and motion graphics
John Knudsen - Gaffer
Music:
"Ouroboros" by Kevin MacLeod
Produced for PBS Digital Studios
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6 min
October 10 It's Okay To Be Smart - Bloopers Vol. 2: The Sequel
We're taking the week off while we work on some special episodes for the next few weeks. In the meantime, here's me messing up. A lot.
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Joe Hanson - Host and writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Katie Graham - Director of Photography
Editing/Motion Graphics - Arts + Labor
Gaffer - John Knudsen
Theme music:
"Ouroboros" by Kevin MacLeod
Produced for PBS Digital Studios
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6 min
October 10 The Factual "Doctor Frankenstein
When it comes to science, is there a monster in us all?
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate
Are you watching "Frankenstein, MD"? Check it out: http://bit.ly/Y9HYz8
"Experiments on the Revival of Organisms" full video: http://www.youtube.com/watch?v=KDqh-r8TQgs
Murder Act and Anatomy Act: http://brainblogger.com/2011/09/17/human-dissection-part-2-murderers-body-snatchers-and-burkers/
Percy Shelley's influence:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1279684/
Erasmus Darwin:
http://blogs.dickinson.edu/romnat/2011/06/10/erasmus-darwin-and-the-frankenstein-mistake/
Real-life influences for Mary Shelley's "Frankenstein":
http://io9.com/5949176/real-life-scientists-who-meddled-with-life-and-death
http://gizmodo.com/5504746/how-a-real-life-dr-frankenstein-reanimated-the-dead-with-electricity
http://mentalfloss.com/article/19855/who-was-dr-frankenstein
http://www.huffingtonpost.com/roseanne-montillo/the-gruesome-true-inspira_b_2622633.html
Joe Hanson - Host and writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Katie Graham - Director of Photography
Editing/Motion Graphics - Andrew Matthews
Gaffer - John Knudsen
Post-production intern - Dalton Allen
Theme music:
"Ouroboros" by Kevin MacLeod
Stock images via Shutterstock
Produced for PBS Digital Studios
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10 min
October 10 Are Humans Running Out Of Food??
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Uploaded 19-02-20

Thanks to Bill and Melinda Gates for sponsoring today's video. Check out their Annual Letter here: http://www.inflcr.co/SH1jP
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If you tried to sum up the last 150 years or so in one image, a chart of exponential growth would be a good place to start. It shows that some things change faster over time. You could apply it to life expectancy. Or compound interest. Or any number of things. But especially population growth. Back in 1798, a guy named Thomas Malthus noticed that not everything grows this way. And this caused people to worry because they were sure it would lead to massive death and starvation and famine. But that didn’t happen, thanks to something called the Green Revolution and a guy named Norman Borlaug. As we face a future population of ten billion and a world impacted by climate change, how will we do a Green Revolution 2.0? #GatesPartner

References: https://sites.google.com/view/cansciencefeed10billionpeople/home

Special thanks to our Brain Trust Patrons:
AlecZero
Bob Rosset
Brent M.
Diego Lombeida
Ron Kakar
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12 min
October 10 Ask Joe Matters #3
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You have questions, I have answers.
SUBSCRIBE, it's FREE! http://bit.ly/iotbs_sub
Sequencing the banana genome: http://news.discovery.com/earth/plants/banana-genome-120711.htm
Reddit's r/ELI5 on "sympathetic vomiting": http://www.reddit.com/r/explainlikeimfive/comments/1fbwpy/
Chances we had more than one common ancestor: http://news.discovery.com/animals/dinosaurs/life-single-common-ancestor.htm
Greenland fossil microbes: http://www.nature.com/ngeo/journal/v7/n1/full/ngeo2025.html
Australia fossil microbes: http://online.liebertpub.com/doi/abs/10.1089/ast.2013.1030
Ed Yong's awesome article about the origin of the mitochondria: http://nautil.us/issue/10/mergers--acquisitions/the-unique-merger-that-made-you-and-ewe-and-yew
History of "c" as the speed of light: http://math.ucr.edu/home/baez/physics/Relativity/SpeedOfLight/c.html
Ask Joe #1: http://www.youtube.com/watch?v=wkSpmTvCRJA
Ask Joe #2: https://www.youtube.com/watch?v=TJvWQMt95A8
Joe Hanson - Host and writer
Joe Nicolosi - Director
Amanda Fox - Producer, Spotzen IncKate Eads - Associate Producer
Katie Graham - Director of Photography
Andrew Matthews - Editor and motion graphics
John Knudsen - Gaffer
Produced for PBS Digital Studios
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11 min
October 10 IN YOUR FACE EXPLOSIVE CHEMISTRY!! (VR180)
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Uploaded 02-11-19

This is a VR180 video so pop on your Google Cardboard or VR Headset to be totally immersed in our world! No headset? No problem. Move your mobile phone around and catch the total 180 experience!

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Special thanks to Dr. Kate Biberdorf AKA Kate the Chemist
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Filmed on location at The University of Texas at Austin

Special thanks to our Brain Trust Patrons:
AlecZero
Bob Rosset
Brent M.
Diego Lombeida

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10 min
October 10 Why is the Sky Whatever Color?
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Why is the sky blue? Or any color, for that matter?
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It's a question that you'd think kids have been asking for thousands of years, but it might not be that old at all. The ancient Greek poet Homer never used a word for blue in The Odyssey or The Iliad, because blue is one of the last colors that cultures pick out a word for
In this episode, I'll tell you not only why the sky is blue, but why it's red at sunset. It turns out, those colors are all part of the same sunbeam. And when you're looking at a blue sky, you could be sharing a special moment with someone thousands of miles away. Next time a kid (or the kid inside you) wants to know why the sky is blue, you'll have science to back you up!
(We know that the Earth turns the wrong direction in the animation, sorry about that. Something weird happened when we were programming the animation and it got reversed. Or maybe time travel!)
References for this episode: http://dft.ba/-4Wus
Have an idea for an episode or an amazing science question you want answered? Leave a comment below!
Written and hosted by Joe Hanson
Produced by Painted On Productions (http://www.paintedon.com/)
Music:
Johnny Ripper "Speak (with Ekoda)"
Kansas Bible Company "Hang Niner"
Clips used:
"Nature - Time 4 Timelapse" - http://vimeo.com/39145634
"Far and Wide" - http://vimeo.com/27027505
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5 min
October 10 Why Is Our Skeleton On the Inside?
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Uploaded 28-07-20

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Having bones is pretty cool. They make our blood, let us hear, and keep us from being just a squishy puddle on the floor. But for every species with bones, there are at least 20 species on Earth with exoskeletons instead. And those exoskeleton animals are incredibly tough and strong. So why don’t WE have our skeletons on the outside? This is the story of bones!

References: https://sites.google.com/view/why-our-skeletons-on-inside/home

Special thanks for research assistance:
Riley Black

Special thanks to our Brain Trust Patrons:
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12 min

About Be Smart.

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We give you deep answers to simple questions about science and the rest of the universe. And also dad jokes.

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