Trees Are All Dead Inside (And That’s a Problem)

From SciShow. Trees are dead inside. It’s true: the xylem tissue that supports their trunks technically isn’t alive. Archaeologists hate that because this problem, the old wood problem, can cause carbon dating to be off by hundreds of years. Hosted by: Savannah Geary (they/them) ———- Support us for $8/month on Patreon and keep SciShow going!…

Poop Treats Parkinson’s (and Allergies, and MS, and Liver Disease, and…)

From SciShow. Fecal transplants are often associated with treating intestinal issues, but they have uses far beyond that. In this List Show, we explore five surprising conditions they improve. 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…

Did Vikings Use These Crystals To Navigate?

From SciShow. The Vikings were renowned navigators at a time before magnetic compasses were invented. So how’d they manage it? Their secret may have been these pretty-pointed crystals of calcite called Iceland spar, and this month’s SciShow Rocks Box subscribers will get to try this out for themselves! Hosted by: Stefan Chin (he/him) ———- Support…

There’s a Third Kind of Cholesterol (It’s Really Bad)

From SciShow. You might know about HDL or good cholesterol. And you might know about LDL or bad cholesterol. But do you know about LP(a) or Lipoprotein A? It’s pretty common and pretty bad and we should talk about it. Hosted by: Stefan Chin (he/him) ———- Support us for $8/month on Patreon and keep SciShow…

5 Unhinged Ways to Get to Space

From SciShow. Visit https://brilliant.org/scishow/ to get started learning STEM for free. The first 200 people will get 20% off their annual premium subscription and a 30-day free trial. From hypothetical magnetic levitation trains and space elevators that aren’t even attached to the ground, to very real space cannons tested in the 1960s, humans have come…

The Hunt for the Blackest Black

From SciShow. A decade after Vantablack took the internet by storm, where are we in terms of the blackest black? It turns out Vantablack doesn’t hold the record, anymore. So what have scientists done differently? 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…

Does Underwear Affect Sperm Counts?

From SciShow. When it comes to things that affect sperm counts, there’s a lot of rumors out there. Anything from diet and exercise to choice in underwear and even how you sit are all debated as possible behaviors that can cause an individual to accidentally lower sperm counts. So we decided to wade through the…

Hank & Nicole ask: How does SciShow (and Science) happen?

From SciShow. Can Hank Greek do science? Well, we know he can talk about it, but we’re sending him some experiments in unlabeled boxes to see what happens next. Join Hank Green and SciShow executive producer Nicole Sweeney for an hour of science experiments, and a chat about how you can help keep SciShow going…

Why Miners Are Flocking Back to This Abandoned Mine

From SciShow. There’s a town in northern Mexico called Ojuela that’s got a rich history of valuable mining industry, but nowadays is largely deserted. But it’s getting a new, second life thanks to a type of mineral forming process fittingly called secondary transformation, and the start of this story is a crystal called adamite, which…

These Are The Coolest Fossils From 2024

From SciShow. From a fancy-frilled ceratopsian to a possible new biggest snake ever and something called a giga goose, there were some pretty amazing giant fossils announced in 2024. Plus, Kallie from our sister channel Eons reminds us to give some love to the little fossils, too. Hosted by: Hank Green (he/him) ———- Support us…

We All Have Synesthesia

From SciShow. Visit https://brilliant.org/scishow/ to get started learning STEM for free. The first 200 people will get 20% off their annual premium subscription and a 30-day free trial. Do you taste something bitter when you hear the right word? Maybe you see a flash of a certain color instead. If so, you might have synesthesia.…

3 Weird Ways Science Is Saving Coral Reefs

From SciShow. ASU’s online Master of Science in Coastal and Marine Science and Management prepares you to protect our oceans and coastal ecosystems. You’ll learn the skills to lead sustainable solutions for marine conservation while shaping the future of coastal communities. https://asuonline.asu.edu/online-degree-programs/graduate/coastal-marine-science-management/?utm_source=youtube&utm_medium=video_paid&utm_content=sh-scishow-coastal-episode&utm_campaign=-sh-scishow&ecd22=&utm_term= Coral reefs are fighting for their very survival these days, and scientists are…

This Giant Space Flower Could Help Us Find A New Earth

From SciShow. Thanks for watching this episode of SciShow! And thank you again to The Kavli Prize for supporting this episode. The Kavli Prize in Astrophysics is awarded for outstanding achievement in advancing our knowledge and understanding of the origin, evolution and properties of the universe. To learn more about Dr. Sara Seager and Dr.…

Why Things Look That Way Under a Blacklight

From SciShow. Fluorescence isn’t just a cool effect that turns your white T-shirt neon purple under a black light. Its discovery opened our eyes to a whole new field of science and engineering. And it’s all thanks to a crystal called fluorite. Hosted by: Hank Green (he/him) ———- Support us for $8/month on Patreon and…

How One Hurricane Could Lead To A Global Tech Shortage

From SciShow. Technology has shaped our world, and in particular, semiconductor silicon chips are the magic ingredient that’s sparked a revolution. And all of the world’s flashiest tech can only exist at all because of one single mine. From your cell phone and computer to medical devices and spacecraft, all of the quartz that makes…

Space, Goats, and Climate Change

From SciShow. 90% of the world’s cashmere, the wonderfully soft fiber used in scarves and sweaters, comes from China and Mongolia. Cashmere goats are raised by nomadic pastoralists on marginal habitat in the Gobi Desert. These herders are fighting the effects of the climate crisis… with a little help from NASA. Support for this video…