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  • I'm Uncertain How to Feel About 2023
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    2023 was a wild year with everything from scorching temperatures to massive wildfires. Even with more renewable energy than ever, 2023’s climate data still seems really bad. So how should we think about climate change today? And what can we do about it? Learn what climate scientists think about 2023’s climate milestones, what the models tell us about the future of Earth’s climate, and how we can tackle climate doomerism.
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    13 min
  • Reasons to be Upbeat (Thanks to Science!)
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    Links to all these awesome stories below!
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    1. Gravitational waves: http://www.nature.com/news/gravitational-waves-1.19321
    2. AlphaGo beats Lee Sedol: http://www.theatlantic.com/technology/archive/2016/03/the-invisible-opponent/475611/
    3. CRISPR tested in a human: http://www.nature.com/news/crispr-gene-editing-tested-in-a-person-for-the-first-time-1.20988
    4. Minimal synthetic organism: http://www.sciencemag.org/news/2016/03/synthetic-microbe-lives-less-500-genes
    5. SpaceX rocket landings: http://www.space.com/33461-spacex-rocket-landings-video-supercut.html
    6. Closest known exoplanet: https://www.eso.org/public/news/eso1629/
    7. Alzheimer’s drug trial success: http://www.sciencealert.com/a-new-alzheimer-s-drug-just-hit-a-major-milestone-in-a-human-clinical-trial
    8. Three-parent baby born: https://www.newscientist.com/article/2107219-exclusive-worlds-first-baby-born-with-new-3-parent-technique/
    9. Paris climate agreement goes into effect: https://www.wired.com/2016/12/2016-pivotal-year-war-climate-change/
    10. Antarctic ozone hole is healing: http://www.bbc.com/news/science-environment-36674996
    11. Ross Sea becomes largest marine protected area: http://news.nationalgeographic.com/2016/10/ross-sea-marine-protected-area-antarctica/
    12. Giant pandas are no longer endangeredL http://www.worldwildlife.org/stories/giant-panda-no-longer-endangered
    13. Wild tigers on the rise: http://news.nationalgeographic.com/2016/04/160410-tiger-numbers-rise-wwf-conservation-double-population/
    14. Cool new species: http://www.livescience.com/54546-chewbacca-beetle-from-new-guinea.html
    http://www.npr.org/sections/thetwo-way/2016/06/02/480437128/insect-named-for-ruth-bader-ginsburg-is-step-toward-equality-of-the-6-legged-sex
    http://www.livescience.com/55563-game-of-thrones-dragon-ant.html
    http://www.bbc.com/news/world-asia-38325099
    15. Casper the ghost octopus: http://www.slate.com/blogs/the_slatest/2016/03/06/check_out_ghost_like_octopus_dubbed_casper_that_could_be_new_species.html
    16. Ghost shark filmed: http://news.nationalgeographic.com/2016/12/pointy-nosed-blue-chimaeras-ghost-sharks/
    17. LIchen symbiosis decoded: http://www.theatlantic.com/science/archive/2016/07/how-a-guy-from-a-montana-trailer-park-upturned-150-years-of-biology/491702/
    18. Jeremy the backwards snail finds a partner: http://www.wired.co.uk/article/snail-jeremy-left-handed-love
    19. Solar powered plane flies around world: https://www.theguardian.com/environment/2016/jul/26/solar-impulse-plane-makes-history-completing-round-the-world-trip
    20. New glasses for colorblind people: https://www.technologyreview.com/s/601782/how-enchromas-glasses-correct-color-blindness/
    21. Juno mission updates: https://www.missionjuno.swri.edu/
    22. Rosetta completes comet mission: http://gizmodo.com/watch-rosetta-s-entire-mission-to-a-comet-in-just-four-1790438586
    23. Scott Kelly and Mikhail Kornienko’s year in space: https://www.nasa.gov/content/a-year-in-space
    ----------------
    It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
    Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
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    7 min
  • Ask Joe Matters #6
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    How far would ocean viruses stretch? http://www.virology.ws/2009/10/19/ten-cool-facts-about-viruses/
    Follow Aaron Pomerantz!
    Twitter @AaronPomerantz
    YouTube https://www.youtube.com/channel/UCHr0u7Jsktou2CFl2GhTxYA
    http://www.thenextgenscientist.com/
    Videos referenced in this episode:
    Is Big Data Getting Too Big? https://www.youtube.com/watch?v=NTMkc0bLRlI
    Musical Tesla Coils in Slow Motion! Featuring Physics Girl https://www.youtube.com/watch?v=KGhNgeg9IAw
    Is Ultron Inevitable? Ft. Vsauce3 https://www.youtube.com/watch?v=-Irmtk5QG8s
    Could Planet Minecraft Actually Exist? https://www.youtube.com/watch?v=h5N7d8mcQk4
    Why Are You Multicellular? https://www.youtube.com/watch?v=jdVc2J_OwDc
    The Most Important Moment in the History of Life https://www.youtube.com/watch?v=Jf06MlX8yik
    Traveling Light (from Vsauce3) https://www.youtube.com/watch?v=GOoFkwj91pk
    Do Plants Think? https://www.youtube.com/watch?v=zm6zfHzvqX4
    Why Do We Have To Sleep? https://www.youtube.com/watch?v=3mufsteNrTI
    Hurricanes: Engines of Destruction https://www.youtube.com/watch?v=Xtu2_ziBI_w
    I don’t know why anyone would want to read this, but here’s my dissertation:
    http://bit.ly/2cU8DuN
    ----------------
    It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
    Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
    Facebook: http://www.facebook.com/itsokaytobesmart
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    http://twitter.com/jtotheizzoe
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    Produced by PBS Digital Studios
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    12 min
  • How Bees Can Observe the Invisible
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    Bees see the world in some very interesting ways
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    To begin this video, we launched a little confetti to celebrate the fact that I am now "Dr. Joe", since I successfully defended my Ph.D. in molecular biology! Woo! But you don't have to call me "Doctor."
    Anyway, spring is in the air!! We're all thawing out from winter's chill, and for bees and flowers this season is about one thing: Feeding and fertilizing. Bees are amazing social insects, and their relationship with flowers is one of nature's coolest examples of "mutualism". It got me wondering: How do bees see the world? Enjoy this look at how bees see in ultraviolet and even sense electric fields!
    References for this episode: http://dft.ba/-5Am1
    Written and hosted by Joe Hanson
    Produced by Painted On Productions (http://www.paintedon.com/)
    Clips used:
    Louie Schwartzberg - The hidden beauty of pollination https://vimeo.com/27328081
    Jay Woo - October 1st https://vimeo.com/50513099
    Music: Edvard Grieg "Morning Mood"
    Special thanks to Klaus Schmitt for allowing us to use his awesome UV flower photos: All images used © Dr Schmitt, Weinheim Germany, http://uvir.eu
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    5 min
  • Why Does Music Captivate Us?
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    Why does music give us all the feels?
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    Why does music make us feel happy or sad? Or angry or romantic? How can simple sound waves cause so much emotion? I went from my comfy chair to the streets of Austin to investigate how it might be written into our neuroscience and evolution. Modern neuroscience says our brains may be wired to pick certain emotions out of music because they remind us of how people move!
    Humans are the only species we know that creates and communicate using music, but it's still unclear how or why we do that, brain-wise. Is it just a lucky side effect of evolution, like Steven Pinker says? Or is it a deeper part of our evolutionary history, as people like Mark Changizi and Daniel Levitin argue?
    New evolutionary science says that we may read emotion in music because it relates to how we sense emotion in people's movements. We'll take a trip from Austin to Dartmouth to Cambodia to hear why music makes us feel so many feels. The connections between movement and music go far beyond dance moves!
    Mike over at Idea Channel has a different opinion, head on over and check it out: http://www.youtube.com/watch?v=bWWYE4eLEfk
    References for this episode: http://dft.ba/-5ECR
    Special thanks to Dartmouth's Thalia Wheatley and Beau Sievers, who did the research. You can read more about it here:
    http://wheatlab.virb.com/dynamics
    http://phenomena.nationalgeographic.com/2012/12/18/why-does-music-move-us-so/
    Written and hosted by Joe Hanson
    Produced by Painted On Productions (http://www.paintedon.com/)
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    7 min
  • My Afternoon With A Giant Pacific Octopus!
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    Joe went behind the scenes at Monterey Bay Aquarium to meet the Giant Pacific Octopus, a powerful and curious creature that challenges many of our notions of intelligence!
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    6 min
  • Mindfulness in the Digital Age
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    In a world of distractions, how do we pay attention?
    It seems like every week someone tells us how the internet and the digital age are overloading our brains. Sure, sometimes it feels like we're being fed more information than we can handle, that we're paying attention to the wrong things. Are we giving our brain a fair shot?
    I explore some science that show how paying attention can be a bad thing, and then some science about how paying attention can be a very helpful thing
    Special cameos by Hank Green and Mike Rugnetta!
    Further reading:
    The original Simons and Chabris experiment: http://www.youtube.com/watch?v=vJG698U2Mvo
    The cocktail party effect: http://www.npr.org/blogs/health/2013/03/07/173613681/hear-that-in-a-din-of-voices-our-brains-can-tune-to-one
    The illusion of attention: http://www.guardian.co.uk/science/neurophilosophy/2011/aug/11/neuroscience-psychology
    How is the internet changing our brains? (Harold Rheingold and more) http://www.edge.org/q2010/q10_index.html#responses
    Sherry Turkle - Alone Together http://www.ted.com/talks/sherry_turkle_alone_together.html
    Written and hosted by Joe Hanson
    Produced by Painted On Productions (http://www.paintedon.com/)
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    8 min
  • The Strange Science of Why We Dream

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    Uploaded 22-12-21

    It would be a lot easier to study the science of dreaming if we weren’t asleep every time we did it. Why do we dream? What does dreaming do for our brains? How did dreaming evolve? Here’s a look at the current theories from psychology and neuroscience.

    References:
    Barrett, D. (2017), Dreams and creative problem-solving. Ann. N.Y. Acad. Sci., 1406: 64-67. https://doi.org/10.1111/nyas.13412
    Carlo Cipolli, Roberto Bolzani, Cesare Comoldi, Rossana De Beni, Iino Fagioli, Bizarreness Effect in Dream Recall, Sleep, Volume 16, Issue 2, March 1993, Pages 163–170, https://doi.org/10.1093/sleep/16.2.163
    Eagleman DM, Vaughn DA (2021). The Defensive Activation Theory: REM Sleep as a Mechanism to Prevent Takeover of the Visual Cortex. Frontiers in Neuroscience. 15:632853. doi: 10.3389/fnins.2021.632853
    El-Solh, A. A. (2018). Management of nightmares in patients with posttraumatic stress disorder: Current perspectives. Nature and Science of Sleep, 10, 409–420.https://pubmed.ncbi.nlm.nih.gov/30538593/
    Hughes, J. Donald. (2000). Dream Interpretation in Ancient Civilizations. Dreaming. 10. 7-18. 10.1023/A:1009447606158.
    Káli, S., Dayan, P. Off-line replay maintains declarative memories in a model of hippocampal-neocortical interactions. Nature Neuroscience 7, 286–294 (2004). https://doi.org/10.1038/nn1202
    Montangero, Jacques and Ivanyi, Corinne and Saint-Hilaire, Zara. (2003). Completeness and accuracy of morning reports after a recall cue: Comparison of dream and film reports. Consciousness and cognition. 12. 49-62. 10.1016/S1053-8100(02)00029-6.
    Stickgold, R., Malia, A.; Maguire, D., Roddenberry, D., O'Connor, M. (2000). Replaying the Game: Hypnagogic Images in Normals and Amnesics. Science. 290 (5490): 350–353. doi:10.1126/science.290.5490.350.
    Valli, K., Revonsuo, A., Pälkäs, O., Ismail, K. H., Ali, K. J., and Punamäki, R.-L. (2005). The threat simulation theory of the evolutionary function of dreaming: Evidence from dreams of traumatized children. Consciousness and Cognition, 14(1), 188–218. https://pubmed.ncbi.nlm.nih.gov/15766897/
    van der Linden, S. The Science Behind Dreaming. Scientific American. July 26, 2011
    Erin J. Wamsley, PhD, Karen Perry, MD, Ina Djonlagic, MD, Laura Babkes Reaven, MD, Robert Stickgold, PhD, Cognitive Replay of Visuomotor Learning at Sleep Onset: Temporal Dynamics and Relationship to Task Performance, Sleep, Volume 33, Issue 1, January 2010, Pages 59–68, https://doi.org/10.1093/sleep/33.1.59
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    18 min
  • How Your Brain Makes Time Pass Fast or Slow

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    Uploaded 01-09-20

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    Time passes for all of us at the same rate of one second per second. But why does it sometimes feel like time is passing so fast, or so slowly? Especially during COVID? Let’s learn about how our brains keep track of and try to make sense of time, and how they get fooled.

    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/how-perceive-time-references/home

    Special thanks to our Brain Trust Patrons:
    AlecZero
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    Amy Sowada
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    George Gladding
    Jay Stephens
    Karen Haskell
    Marcus Tuepker
    Megan K Bradshaw
    Peter Ehrnstrom
    Robert Young
    Salih Arslan
    Vincbis
    Zenimal


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    13 min
  • Why Do More Species Concentrate Near the Equator?
    Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate
    Go to http://Raceforretirement.com and see how the action gap affects you.
    Follow all of our Peru adventures on this playlist: http://bit.ly/SmartPeru
    ↓ More info and sources below ↓
    Special thanks to Rainforest Expeditions for hosting us! Visit http://www.perunature.com/
    References:
    Wilson, E.O. "The Diversity of Life" http://eowilsonfoundation.org/the-diversity-of-life/
    Eichhorn, Markus P. "Latitudinal gradients." Natural Systems: The organisation of life: 249-264.
    "Tropical Ecology" (textbook) by John Kircher (2011) http://press.princeton.edu/titles/9486.html
    Condamine, Fabien L., et al. "What causes latitudinal gradients in species diversity? Evolutionary processes and ecological constraints on swallowtail biodiversity." Ecology letters 15.3 (2012): 267-277.
    Jenkins, Clinton N., Stuart L. Pimm, and Lucas N. Joppa. "Global patterns of terrestrial vertebrate diversity and conservation." Proceedings of the National Academy of Sciences 110.28 (2013): E2602-E2610.
    Mannion, Philip D., et al. "The latitudinal biodiversity gradient through deep time." Trends in ecology & evolution 29.1 (2014): 42-50.
    Mittelbach, Gary G., et al. "Evolution and the latitudinal diversity gradient: speciation, extinction and biogeography." Ecology letters 10.4 (2007): 315-331.
    Wiens, John J., et al. "Evolutionary and ecological causes of the latitudinal diversity gradient in hylid frogs: treefrog trees unearth the roots of high tropical diversity." The American Naturalist 168.5 (2006): 579-596.
    ----------------
    It's Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
    Have an idea for an episode or an amazing science question you want answered? Leave a comment or check us out at the links below!
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    11 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.