SciShow

Wooden Cutting Boards Are the Best

18 dec 2025

Thanks to Henson Shaving for sponsoring this video! Head to https://hensonshaving.yt.link/d2iieCF and use code scishow to receive 100 blades for free (2+ years worth). Just make sure both products are in the cart for the code to take effect. The great debate between microplastic shedding plastic cutting boards and bacteria harboring wooden cutting boards started with peer-reviewed science. We'll explore that research along with what scientists know about alternative cutting board materials to determine the most food safe option. Hosted by: Hank Green (he/him) ---------- Support us for $8/month on Patreon and keep SciShow going! https://www.patreon.com/scishow Or support us directly: https://complexly.com/support Join our SciShow email list to get the latest news and highlights: https://mailchi.mp/scishow/email ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: David Johnston, Cye Stoner, Jp Lynch, Bethany Matthews, Chris Curry, J.V. Rosenbalm, Alan Wong, Toyas Dhake, Reed Spilmann, Garrett Galloway, Friso, Lyndsay Brown, Jeremy Mattern, Jaap Westera, Matt Curls, Eric Jensen, Chris Mackey, Adam Brainard, Piya Shedden, Steve Gums, Alex Hackman, Kevin Knupp, Chris Peters, Kevin Bealer, Joseph Ruf, Jason A Saslow ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: https://scishow-tangents.simplecast.com/ TikTok: https://www.tiktok.com/@scishow Instagram: http://instagram.com/thescishow Facebook: http://www.facebook.com/scishow Bluesky: https://bsky.app/profile/scishow.bsky.social #SciShow #science #education #learning #complexly ---------- Sources: https://docs.google.com/document/u/1/d/e/2PACX-1vTO4adHpZ0_I5mCxUcfktIzjxdxyq2IP_aBkj91dGDPsmdh7nvr1fqm9KY9_jFGqM95cKe9i9K5FJ92/pub

Do Glass Bottles Shed More Microplastics Than Plastic?

17 dec 2025

Check out Manta Sleep here https://tinyurl.com/yuyzxkx6 and make sure to use SCISHOW for 10% off your order! And then, take a nap! A surprising study in 2025 claimed that glass bottles deposit more microplastics in your drink than plastic bottles. Is this counterintuitive claim true? And what can we do about it? Hosted by: Savannah Geary (they/them) ---------- Support us for $8/month on Patreon and keep SciShow going! https://www.patreon.com/scishow Or support us directly: https://complexly.com/support Join our SciShow email list to get the latest news and highlights: https://mailchi.mp/scishow/email ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: David Johnston, Cye Stoner, Jp Lynch, Bethany Matthews, Chris Curry, J.V. Rosenbalm, Alan Wong, Toyas Dhake, Reed Spilmann, Garrett Galloway, Friso, Lyndsay Brown, Jeremy Mattern, Jaap Westera, Matt Curls, Eric Jensen, Chris Mackey, Adam Brainard, Piya Shedden, Steve Gums, Alex Hackman, Kevin Knupp, Chris Peters, Kevin Bealer, Joseph Ruf, Jason A Saslow ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: https://scishow-tangents.simplecast.com/ TikTok: https://www.tiktok.com/@scishow Instagram: http://instagram.com/thescishow Facebook: http://www.facebook.com/scishow Bluesky: https://bsky.app/profile/scishow.bsky.social #SciShow #science #education #learning #complexly ---------- Sources: https://docs.google.com/document/d/e/2PACX-1vRHsJIK8pUhpPSBI3qptekdbpz2ynTaX0uyd_T0jjSnqUEya41_isgzXI5Htc81B1Zm8w26JJqRagHw/pub

What Dinosaurs, Pyramids, and the Atomic Bomb Have in Common

16 dec 2025

What Dinosaurs, Pyramids, and the Atomic Bomb Have in Common - Inspired by Collisions video: Check out Collisions: A Physicist's Journey from Hiroshima to the Death of the Dinosaurs, by Alec Nevala-Lee at https://bookshop.org/lists/scishow-recommended-reading. This video was made possible by the Alfred P. Sloan Foundation. To learn more, head to https://sloan.org/programs/public-understanding. Sometimes, being an expert in one scientific field doesn’t translate to another. But then there's Luis Alvarez, a particle physicist who helped expand our knowledge of the world by investigating everything from atomic bombs, to Egyptian pyramids, to what actually killed the dinosaurs. Hosted by: Hank Green (he/him) ---------- Support us for $8/month on Patreon and keep SciShow going! https://www.patreon.com/scishow Or support us directly: https://complexly.com/support Join our SciShow email list to get the latest news and highlights: https://mailchi.mp/scishow/email ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: David Johnston, Cye Stoner, Jp Lynch, Bethany Matthews, Chris Curry, J.V. Rosenbalm, Alan Wong, Toyas Dhake, Reed Spilmann, Garrett Galloway, Friso, Lyndsay Brown, Jeremy Mattern, Jaap Westera, Matt Curls, Eric Jensen, Chris Mackey, Adam Brainard, Piya Shedden, Steve Gums, Alex Hackman, Kevin Knupp, Chris Peters, Kevin Bealer, Joseph Ruf, Jason A Saslow ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: https://scishow-tangents.simplecast.com/ TikTok: https://www.tiktok.com/@scishow Instagram: http://instagram.com/thescishow Facebook: http://www.facebook.com/scishow Bluesky: https://bsky.app/profile/scishow.bsky.social #SciShow #science #education #learning #complexly ---------- Sources: https://docs.google.com/document/d/e/2PACX-1vQV6kkGHYR5v1crwCOmN8EK5DtHbdeU07G803y3tj4RcSc-f_rHLyDTiGY33T3XlmhdRQR6j1W_56VE/pub

Is This The Biggest Mistake Science Ever Made?

15 dec 2025

Check out Air-Borne: The Hidden History of the Life We Breathe by Carl Zimmer at https://bookshop.org/lists/scishow-recommended-reading. This video was made possible by the Alfred P. Sloan Foundation. To learn more, head to https://sloan.org/programs/public-understanding. People have been trying to prevent the spread of infectious disease forever, yet we only got germ theory in the 19th century. Except for one 16th century Italian doctor, who got it exactly right and was immediately forgotten. Here's how we've been making slow progress for more than a millennium. Hosted by: Savannah Geary (they/them) ---------- Support us for $8/month on Patreon and keep SciShow going! https://www.patreon.com/scishow Or support us directly: https://complexly.com/support Join our SciShow email list to get the latest news and highlights: https://mailchi.mp/scishow/email ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: David Johnston, Cye Stoner, Jp Lynch, Bethany Matthews, Chris Curry, J.V. Rosenbalm, Alan Wong, Toyas Dhake, Reed Spilmann, Garrett Galloway, Friso, Lyndsay Brown, Jeremy Mattern, Jaap Westera, Matt Curls, Eric Jensen, Chris Mackey, Adam Brainard, Piya Shedden, Steve Gums, Alex Hackman, Kevin Knupp, Chris Peters, Kevin Bealer, Joseph Ruf, Jason A Saslow ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: https://scishow-tangents.simplecast.com/ TikTok: https://www.tiktok.com/@scishow Instagram: http://instagram.com/thescishow Facebook: http://www.facebook.com/scishow Bluesky: https://bsky.app/profile/scishow.bsky.social #SciShow #science #education #learning #complexly ---------- Sources: https://docs.google.com/document/d/e/2PACX-1vSoxOeyC8VOKrmWYxfZcm66vSOpixNvUaBk6i7vv0CRjQITIUXER8fSr-hE3bk370fq-1pszqvQiaUY/pub

What’s the Truth about Acetaminophen and Autism?

12 dec 2025

You've probably heard the claim that there's a link between acetaminophen aka Tylenol and autism. And there are a lot of conflicting takes about what that claim means, which research is “right”, and what different studies really show. So here’s some of the major studies that are being talked about, their shortcomings, and what it means for all the pregnant and autistic people out there. Hosted by: Savannah Geary ---------- Support us for $8/month on Patreon and keep SciShow going! https://www.patreon.com/scishow Or support us directly: https://complexly.com/support Join our SciShow email list to get the latest news and highlights: https://mailchi.mp/scishow/email ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: David Johnston, Cye Stoner, Jp Lynch, Bethany Matthews, Chris Curry, J.V. Rosenbalm, Alan Wong, Toyas Dhake, Reed Spilmann, Garrett Galloway, Friso, Lyndsay Brown, Jeremy Mattern, Jaap Westera, Matt Curls, Eric Jensen, Chris Mackey, Adam Brainard, Piya Shedden, Steve Gums, Alex Hackman, Kevin Knupp, Chris Peters, Kevin Bealer, Joseph Ruf, Jason A Saslow ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: https://scishow-tangents.simplecast.com/ TikTok: https://www.tiktok.com/@scishow Instagram: http://instagram.com/thescishow Facebook: http://www.facebook.com/scishow Bluesky: https://bsky.app/profile/scishow.bsky.social #SciShow #science #education #learning #complexly ---------- Sources: https://docs.google.com/document/d/e/2PACX-1vRu57DMsppUXEyKn4BHRYMfOKg_wod2J21IMWZB7ju86JGLRTnP8Cm0HTV-QaKUMswlrq3-fjzMTHn9/pub