PBS
Is Futurama the Best Argument Against Transhumanism?
Transhumanism is a scientific philosophy that says technology will solve all our human biological constraints and that immortality is right around the corner (well not RIGHT around the corner, but WAYYY closer). They envision a world of...
Crash Course
The Roman Empire. Or Republic. Or...Which Was It Crash Course World History
In which John Green explores exactly when Rome went from being the Roman Republic to the Roman Empire. Here's a hint: it had something to do with Julius Caesar, but maybe less than you think. Find out how Caesar came to rule the empire,...
Crash Course
Flirting With Disaster - The Importance of Safety: Crash Course Engineering #28
As engineer, sometimes lives will be in your hands, so this week we’re exploring safety and its impact on engineering. We’ll discuss the difference between occupational safety and public safety and how to analyze and review a process for...
Crash Course
Conservation and Restoration Ecology: Crash Course Ecology
Hank wraps up the Crash Course on ecology by taking a look at the growing fields of conservation biology and restoration ecology, which use all the kung fu moves we've learned about in the past eleven weeks and apply them to protecting...
Be Smart
Solving the Puzzle of Plate Tectonics
Why do Africa and South America fit together? Anyone who's ever looked at a map can see that Earth's continents are kind of like a jigsaw puzzle. The idea that continents are constantly moving and weren't always in their current spots is...
SciShow
Bitcoin: How Cryptocurrencies Work
Whether or not it's worth investing in, the math behind Bitcoin is an elegant solution to some complex problems.
SciShow Kids
Float a Boat!
We've learned before here on SciShow Kids how boats can float on water using displacement! Today, Bill and Webb will show you how to build you own boat and see displacement in action! Anchors aweigh!
SciShow Kids
Let's Build Paper Rockets | Experiment | Let's Explore Mars! | SciShow Kids
Squeaks and Mister Brown are so excited about rockets, they're going to make their own! You can join in on the fun and learn how to make one too!
TED Talks
Jonathan Zittrain: The Web as random acts of kindness
Feeling like the world is becoming less friendly? Social theorist Jonathan Zittrain begs to differ. The Internet, he suggests, is made up of millions of disinterested acts of kindness, curiosity and trust.
TED Talks
TED: A celebration of natural hair | Cheyenne Cochrane
Cheyenne Cochrane explores the role that hair texture has played in the history of being black in America -- from the heat straightening products of the post-Civil War era to the thousands of women today who have decided to stop chasing...
Crash Course
Controlling the Environment: Crash Course History of Science
Well, it wouldn't be too long after we started developing Ecology that we would try to control the environment. In some ways this was helpful and likely prevented a lot of people from starving. But, there have been a few downsides.
Crash Course
Eugenics and Francis Galton: Crash Course History of Science
After Darwin blew the doors off the scientific community, a lot of people did some weird and unscientific stuff with his ideas. Francis Galton and a few others decided natural selection could be used to make the human race "better" and...
Crash Course
Earth Science: Crash Course History of Science
It's Earth Science time!!!! In this field, natural philosophers were asking questions like, what’s up with fossils? Are they the remains of extinct organisms? Or are they so-called “sports of nature”—rocks that just happen to look like...
Crash Course
The New Anatomy: Crash Course History of Science
There’s a question to consider that’s pretty daunting: what is life? And to try to answer that question, three tools stand out as being especially useful: A book, some experiments, and the microscope! In this episode, Hank talks to us...
Crash Course
Darwin and Natural Selection: Crash Course History of Science
"Survival of the Fittest" sounds like a great WWE show but today we're talking about that phrase as it relates to Charles Darwin and Alfred Wallace. Darwin and Wallace are at the heart of understanding evolution and natural selection....
SciShow
6 Times Scientists Radically Misunderstood the World
Science has come a long way in understanding how our universe works and that road has been full of wrong turns and dead ends. Here are 6 scientific explanations that turned out to be way off track. Chapters 1 SPONTANEOUS GENERATION 1:49...
TED-Ed
TED-ED: The evolution of the human eye - Joshua Harvey
The human eye is an amazing mechanism, able to detect anywhere from a few photons to a few quadrillion, or switch focus from the screen in front of you to the distant horizon in a third of a second. How did these complex structures...
PBS
The Many Worlds of the Quantum Multiverse
Is our universe a definitive single reality or is it merely one within an infinitely branching multiverse?
Crash Course
The Plate Tectonics Revolution: Crash Course Geography
Today we're going to tell the story of a quiet revolution in the 1960s that shifted our entire understanding of how the Earth works. We currently believe that the Earth's broken outer shell rises from the mantle and folds back in - kind...
Crash Course
Affirmative Action: Crash Course Government and Politics
So we've been talking about civil rights for the last few episodes now, and we're finally going to wrap this discussion up with the rather controversial topic of affirmative action. We'll explain what exactly affirmative action is, who...
SciShow
Why Do Our Brains Have Distinct Hemispheres?
We used to think having a distinct left and right brain was something unique to humans. But brain lateralization has now been found in everything from chickens to spiders! Does this change our theories for why some brains work that way?
SciShow
How Dangerous Is Loneliness, Really?
Loneliness isn’t much fun, but it might also be harmful to your heart—not just in a metaphorical sense, but your actual physical heart, as well as some of your body's other functions.
SciShow
Will Learning Another Language Make You Smarter?
People used to say being bilingual was bad for your brain. Now, we know that's not true—but does it actually make you smarter?
Crash Course
Introduction to the Solar System
In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today.