Squeaks, Jessi, and the gang are all going on vacation to the lake, but there's a problem. Our friend Juniper needs a boat, and ours is missing! Jessi proposes we think like engineers and gather information to find a way to solve our...

Learn the about the physics that allows bikes to stay upright and in motion, even without a rider.

It's time for the Myth Olympics: the eternal arena in which creatures and deities compete for glory. Almost every mythical tradition claims one creature as the fastest— from goddesses who run like the wind to creatures who outstrip every...

Jessi and Squeaks are taking a trip soon! But Squeaks has never been on a plane before, and he's a little nervous about it. Let's learn what it's like to go through the airport and to be on an airplane, so we can help squeaks feel a...

People have been captivated by horses for a long time. They appear more than any other animal in cave paintings dating back 30,000 years. But how did horses make the journey from wild animals to ones humans could hitch themselves to and...

In Bangladesh's only beach town, there are just a handful of girls who ride the waves. In fact, most people there frown upon seeing girl surfers, who have faced threats from conservative Muslims in the neighborhood. But surfing makes...

It began with just 10 electric scooters in Santa Monica, California, but soon sidewalks and streets were flooded with thousands of them. Essentially skateboards with handles that can be picked up and dropped off anywhere, they've been...

It was long assumed that Amazons, the fierce and fearsome women warriors of Greece, were imaginary. But curiously enough, stories from ancient Egypt, Persia, the Middle East, Central Asia, India and China also featured Amazon-like...

When you report an emergency in the US, police, firefighters or paramedics answer the call. What if mental health professionals responded, too? Colorado State Representative Leslie Herod shares a straightforward and research-backed...

Today, surfing is a multi-billion-dollar global industry, with tens of millions of enthusiasts worldwide. For some it's a serious sport; for others, just a way to let loose. But despite its casual association with fun and sun, surfing...

Something profound is changing our concept of trust, says Rachel Botsman. While we used to place our trust in institutions like governments and banks, today we increasingly rely on others, often strangers, on platforms like Airbnb and...

Renowned classical Indian dancer Ananda Shankar Jayant was diagnosed with cancer in 2008. She tells her personal story of not only facing the disease but dancing through it, and gives a performance revealing the metaphor of strength that...

Coral reef fish, like the yellow tang surgeonfish, begin life in a fascinating and weird way - as tiny floating larvae! These babies are capable of drifting thousands of miles on ocean currents, far from the reefs where they were born....

In which John Green teaches you about railroads, and some of the ways they changed the world, and how they were a sort of microcosm for the Industrial Revolution as a whole. Prior to the invention of steam powered railroads, pretty much...

Lice don’t just thrive in the biomes of body hair and fur, they can also live in a place that seems like it should be bug-free: the oceans.

Singer, songwriter and actress Sara Ramirez is a woman of many talents. Joined by Michael Pemberton on guitar, Ramirez sings of opportunity, wisdom and the highs and lows of life in this live performance of her song, "Rollercoaster."

In 1895, crowds flooded Coney Island to see America's first-ever looping coaster: the Flip Flap Railway. But its thrilling flip caused cases of severe whiplash, neck injury and even ejections. Today, coasters can pull off far more...

Join the Cossack soldier Stepan as he tries to keep order in the battalion and help his people regain their independence. -- The year is 1676, and a treaty has officially ended hostilities between the Polish-Lithuanian Commonwealth...

Luck is rarely a lightning strike, isolated and dramatic -- it's much more like the wind, blowing constantly. Catching more of it is easy but not obvious. In this insightful talk, Stanford engineering school professor Tina Seelig shares...

There are many mysteries around fever, but we do know that all mammals, some birds and even a few invertebrate and plant species feel fever's heat. It has persisted for over 600 million years of evolution. But it has a significant cost:...

Join Squeaks and his favorite band, The Whizpops, for a musical experience with Manta Rays!

Before every launch, there's a crawl.

Several cultures portray the world as being carried on the back of a giant turtle. As it turns out, sea turtles really do house an entire world on their backs — one of microscopic organisms, that is!

Ever wonder what keeps you from falling over when you’re riding your bike? Jessi, with the help of some other SciShow Kids, shows you the answer!