SciShow
Hyenas Once Lived in the Frigid Arctic
Prehistoric teeth prove that hyenas once roamed the Arctic and the relationship between ancient crocodiles and climate is more complicated than we thought.
SciShow
3 Things We Can Do to Stop Ebola
SciShow News explains the science behind the latest efforts to stop the spread of ebola: including airport screenings, treatments for patients, and developments in the search for a vaccine.
TED Talks
TED: How to get (a new) hip | Allison Hunt
When Allison Hunt found out that she needed a new hip -- and that Canada’s national health care system would require her to spend nearly 2 years on a waiting list (and in pain) -- she took matters into her own hands.
TED Talks
TED: How shocking events can spark positive change | Naomi Klein
Things are pretty shocking out there right now -- record-breaking storms, deadly terror attacks, thousands of migrants disappearing beneath the waves and openly supremacist movements rising. Are we responding with the urgency that these...
TED Talks
TED: The risky politics of progress | Jonathan Tepperman
Global problems such as terrorism, inequality and political dysfunction aren't easy to solve, but that doesn't mean we should stop trying. In fact, suggests journalist Jonathan Tepperman, we might even want to think riskier. He traveled...
MinuteEarth
How two butterflies became one
Here's why you shouldn't judge a butterfly species by its wing coloration.
Crash Course
Westward Expansion Crash Course US History
In which John Green teaches you about the Wild, Wild, West, which as it turns out, wasn't as wild as it seemed in the movies. When we think of the western expansion of the United States in the 19th century, we're conditioned to imagine...
TED Talks
TED: How to protect your mental well-being online -- from a Gen-Zer | Peachy Liv
Whether you have one follower or a million, we've all witnessed nastiness and hate speech on social media. YouTube content creator and mental well-being motivator Peachy Liv advocates for a kinder, more respectful digital world -- and...
Bozeman Science
Hydroelectric Power
In this video Paul Andersen explains how energy can be harnessed was water moves through a turbine. Three types of systems are discussed in the video; run-of-the-water, impoundment, and tidal. Several advantages and disadvantages of dams...
SciShow
Dam Fun Facts About Beavers
SciShow shares fun facts about nature's greatest engineers: the beaver!
TED Talks
TED: Hopeful lessons from the battle to save rainforests | Tasso Azevedo
Save the rainforest is an environmental slogan as old as time — but Tasso Azevedo catches us up on how the fight is actually going these days. Spurred by the jaw-dropping losses of the 1990s, new laws (and transparent data) are helping...
Crash Course
World War II: Crash Course World History
In which John Green teaches you about World War II, aka The Great Patriotic War, aka The Big One. So how did this war happen? And what does it mean? We've all learned the facts about World War II many times over, thanks to repeated...
SciShow
Great Minds: Dr. Judith Resnik and the Icebusters
In 1984, ice was accumulating on the side of the Space Shuttle Discovery, spelling possible disaster, luckily it was the first mission of Dr. Judith Resnik, and the Canadarm.
SciShow
The Massive Flood That Triggered an Ice Age (w/ PBS Eons!)
13,000 years ago, North America seemed to be thawing from a 2.6 million-year ice age. Then, a huge swath of Earth was suddenly plunged back into the cold for 1,000 years. To understand why we need to talk about megafloods.
SciShow
The Freezing Dunes of Northern Canada
When you think "sand dunes" you probably wouldn't think to look up in the northern reaches of Canada, but there lies one of earth's most unique habitats.
SciShow
How Do Chips Make Credit Cards More Secure?
If you live in the United States, you might have recently gotten a credit card with a microchip on it. But what does this chip do that makes it any different than the magnetic strip on the back of the card?
Crash Course
The Handmaid's Tale, Part 1: Crash Course Literature 403
In which John Green teaches you about Margaret Atwood's speculative fiction novel, The Handmaid's Tale. John looks at some of the themes in this classic dystopian novel, many of which are kind of a downer. The world of Gilead that Atwood...
Crash Course
North America Gets a Theater...Riot: Crash Course Theater #29
It's lights up in America! This week, we're headed to North America. We'll look at Native American storytelling traditions, the theater that Europeans brought along starting in the 17th century, and how theater developed before and after...
Bozeman Science
Biotic and Abiotic Factors
Paul Andersen differentiates between biotic and abiotic factors. He explains how both abiotic and biotic factors can affect organisms at the level of the cell, the population and even the ecosystem. The complexities of biofilms,...
TED Talks
Elizabeth Dunn: Helping others makes us happier -- but it matters how we do it
Research shows that helping others makes us happier. But in her groundbreaking work on generosity and joy, social psychologist Elizabeth Dunn found that there's a catch: it matters how we help. Learn how we can make a greater impact --...
Crash Course
World War II Crash Course World History
In which John Green teaches you about World War II, aka The Great Patriotic War, aka The Big One. So how did this war happen? And what does it mean? We've all learned the facts about World War II many times over, thanks to repeated...
Crash Course
Monsters. They're Us, Man: Crash Course World Mythology
This week, we're starting our discussion of Mythical Creatures with the WORST creatures. Monsters. What makes a monster monstrous though? Mike Rugnetta will guide you through the fine line between a magical creature and a monster....