Crash Course
Japan in the Heian Period and Cultural History: Crash Course World History 227
In which John Green teaches you about what westerners call the middle ages and the lives of the aristocracy...in Japan. The Heian period in Japan lasted from 794CE to 1185CE, and it was an interesting time in Japan. Rather than being...
Bozeman Science
Internal Energy
In this video Paul Andersen explains how the internal energy of a system can change as the internal structure of the system changes. An object model will not be able to account for the restoring forces and so a system model must be used....
SciShow
Solving Mysteries with the Ancient Galaxies Next Door - SciShow News
Some of the oldest galaxies we’ve ever seen are small, faint satellite galaxies orbiting the Milky Way, and they're providing us with a glimpse of how the universe evolved.
TED Talks
TED: Growing evidence of brain plasticity | Michael Merzenich
Neuroscientist Michael Merzenich looks at one of the secrets of the brain's incredible power: its ability to actively re-wire itself. He's researching ways to harness the brain's plasticity to enhance our skills and recover lost function.
SciShow
The Real Mayan Apocalypse
There are just six weeks left until the celestial odometer that is the Mayan calendar clicks over to the next b'akt'un, but in the meantime, scientists have been trying to solve the mystery behind the collapse of the Mayan civilization....
SciShow
The Northern Hemisphere’s Very Own Giant Penguins (Sort Of)
Today, penguins are found mainly in the Southern Hemisphere. But fossils have revealed giant lookalikes to these swimming birds further up north, spurring questions of how they evolved and what happened to them.
SciShow
The Science of Dreaming
Dreaming is one of the weirdest things we do & in this SciShow infusion Hank talks about how science is helping us understand why we dream, what our brains are up to when they're doing it, and why dreaming may be critically important to...
TED Talks
Martin Jacques: Understanding the rise of China
Speaking at a TED Salon in London, Martin Jacques asks: How do we in the West make sense of China and its phenomenal rise? The author of "When China Rules the World," he examines why the West often puzzles over the growing power of the...
Bozeman Science
Proper Group Size for Learning
Paul Andersen describes his philosophy for group size. One is for learning, active and private. Two is for teaching, it goes both ways. Three is for working, the jobs divided. Four is for nothing but wasting the days.
TED Talks
TED: An Internet without screens might look like this | Tea uglow
Designer Tea uglow is creating a future in which humanity's love for natural solutions and simple tools can coexist with our need for information and the devices that provide us with it. "Reality is richer than screens," she says. "We...
SciShow
Why Do People Have Periods When Most Mammals Don't?
Few mammals actually get periods every month, or even at all, but why? Understanding what menstruation really is and why it happens could help ease symptoms & treat conditions that stem from the reproductive system.
SciShow
Forecasting the Weather...on the Sun
The sun is beginning a new weather cycle, causing debate among scientists about how intense things are going to get, and elsewhere, scientists are looking into just how fluid our early universe was.
SciShow
A Brief History of Life on Earth: The Full Series
From the Archean Eon to the Holocene Epoch, check out this SciShow mini-series for a primer about life on earth.
TED Talks
TED: 10 top time-saving tech tips | David Pogue
Tech columnist David Pogue shares 10 simple, clever tips for computer, web, smartphone and camera users. And yes, you may know a few of these already -- but there's probably at least one you don't.
TED-Ed
TED-ED: Mysteries of vernacular: Quarantine - Jessica Oreck and Rachael Teel
Stemming from the days of bubonic plague in Medieval Europe, quarantines were originally used to prevent potentially plague-infested ships from disembarking at a port city. Jessica Oreck and Rachael Teel explain how the length of the...
Bozeman Science
Thinking in Patterns - Level 2 - Patterns of Change
A mini-lesson on patterns of change.
Crash Course
The End of Civilization (In the Bronze Age): Crash Course World History 211
In which John Green teaches you about the Bronze Age civilization in what we today call the middle east, and how the vast, interconnected civilization that encompassed Egypt, The Levant, and Mesopotamia came to an end. What's that you...
SciShow
Monogamy
Hank examines the zoological definition of monogamy, as well as some other breeding strategies that animals use.
SciShow
Why Did You Skip a Period?
Have you had a normal menstrual cycle and then you suddenly miss a period? There are different reasons why this can happen, and if you don't experience a period you were expecting, you’ll probably want to talk to your health care...
SciShow
The Biggest Sloth That Ever Lived, and 6 Other Gigantic Animals
Sometimes it seems like the past favored large animals, but it turns out that each one on this list has a different reason for its size. Chapters View all Carboniferous & Permian periods 360 251 million years ago 1:04 DRAGONFLY Credit:...
TED-Ed
TED-Ed: The unexpected math behind Van Gogh's "Starry Night" - Natalya St. Clair
Physicist Werner Heisenberg said, "When I meet God, I am going to ask him two questions: why relativity? And why turbulence? I really believe he will have an answer for the first." As difficult as turbulence is to understand...
Bozeman Science
Wave Speed
In this video Paul Andersen explains how the wave speed measure the speed of a wave through a medium. The medium determines the speed of the wave. The velocity of the wave is equal to the product of the wavelength and the frequency of...
TED Talks
TED: Are you human? | Ze Frank
Have you ever wondered: Am I a human being? Ze Frank suggests a series of simple questions that will determine this. Please relax and follow the prompts. Let's begin …