TED Talks
Interstellar Discoveries and the Quest for Cosmic Humility
Astrophysicist Avi Loeb contrasts the ancient awe that Moses felt when witnessing the burning bush with modern humanity's overconfidence since Nietzsche's declaration that "God is dead." He argues that the rise of science and technology...
SciShow
Why Can't I Use My Laptop Outside?
Why can't laptop screens be viewed outside like e-readers can? It turns out, they use very different technology. But engineers are working on closing the gap.
SciShow
How to Supersize a Telescope | Compilation
Telescopes can get pretty big, incredibly big actually. Unbelievably big. So here's a compilation about how we managed to get them that size and how that size helps us to see.
SciShow
This Toxic Liquid Telescope from the 1850s Is Finally Useful
Sometimes looking into a pool of a toxic liquid holds the secrets of the universe–or maybe just this one time.
SciShow
Growing Bacteria in Space Stations | Compilation
Bacteria is enormously resourceful and will find a way to grow just about anywhere it can, and that includes space stations. Here's a compilation of how that's happened in the past and how we've handled it!
PBS
The Crisis in Cosmology
The search for a single number: the hubble constant, which is the rate of expansion of our universe, has consumed astronomers for generations. Finally, two powerful and independent methods have refined its measurement to unprecedented...
PBS
Our Antimatter, Mirrored, Time-Reversed Universe
The foundations of quantum theory rests on its symmetries. For example, it should be impossible to distinguish our universe from one that is that is the perfect mirror opposite in charge, handedness, and the direction of time. But one by...
PBS
Sound Waves from the Beginning of Time
Invisible to the naked eye, our night sky is scattered with the 100s of billions of galaxies the fill the known universe. Like the stars, these galaxies form constellations – hidden patterns that echo the reverberations of matter and...
Be Smart
The Magic (and Mystery) of Mirrors
How many times do you look in a mirror every day? Have you ever stopped to wonder how they actually work? Mirrors do strange things to our world, seemingly flipping everything so that what was right is left and what was left is right....
PBS
Perpetual Motion From Negative Mass?
Challenge question: if 1kg of apples is $5 and 2kg is $10, how much is -1kg of apples? The answer? Priceless. Because you could use negative-mass apples to build warp drives, travel in time, and construct a perpetual motion machine. In...
SciShow
This Squid Glows… To Make Itself Invisible
When you live in the ocean, it can be hard to find ways to keep hidden from predators, or from your own prey. But these three animals have found clever ways to stay hidden, by using light to their advantage. One of them even /makes...
SciShow
How Smart Are Animals, Really?
Measuring 'intellect' is a difficult task. Check out one way scientists are attempting to make this endeavor more testable. Hosted by: Hank Green
TED Talks
TED: A 3-step guide to believing in yourself | Sheryl Lee Ralph
Sheryl Lee Ralph is a force, delivering iconic performances both on stage and screen. But she didn't always know if she'd make it big. In a lively talk sparkling with actionable advice, she shares how her struggles taught her what it...
MinutePhysics
How to Tell Matter From Antimatter | CP Violation & The Ozma Problem
This video was made with the support of the Heising Simons Foundation. This video is about the Ozma problem of distinguishing the chirality (ie left-handedness or right-handedness) of matter using weak interaction processes like beta...
Crash Course
Eating and Body Dysmorphic Disorders: Crash Course Psychology
In this episode of Crash Course Psychology, Hank walks us through the troubling world of Eating and Body Dysmorphic disorders. There's a lot going on here and, even though we still have a lot of dots to connect, a lot we can learn to...
SciShow
Why It Took a Decade to Launch The James Webb Space Telescope | Compilation
The James Webb Space Telescope has launched! But it was a very long road to get to this point, and we’ve been following the progress for a decade!
SciShow
TMT: The World’s Most Controversial Telescope
What exactly is the Thirty Meter Telescope, and why is the proposed location in Hawai'i such a conflict?
TED Talks
TED: Living sculptures that stand for history's truths | Sethembile Msezane
In the century-old statues that occupy Cape Town, Sethembile Mzesane didn't see anything that looked like her own reality. So she became a living sculpture herself, standing for hours on end in public spaces dressed in symbolic costumes,...
SciShow
Why You’ll Never See Your Eyes Move in a Mirror
Your brain does a lot to smooth out your visual experience of the world… including the closest thing we have to time travel.
Crash Course
Moliere - Man of Satire and Many Burials: Crash Course Theater #21
This week on CC Theater, Mike Rugnetta teaches you about the greatest playwright of Renaissance France, Moliere. We'l talk a bit about early French theater design, and the kingly love of theater that Louis the XIII and XIV shared, and...
TED-Ed
TED-Ed: Why is this painting so captivating? - James Earle and Christina Bozsik
On first glance, the painting Las Meninasc (The Maids of Honorc) might not seem terribly special, but it's actually one of the most analyzed pieces in the history of art. Why is this painting by Diego Velazquez so captivating? James...
SciShow
Special Valentine Science!
Want to get your sweetheart something really special? Give them a mineral called fingerite, and then stare at them for a while! Find out why, in this Valentine's Day edition of SciShow News.
SciShow
The Gulf of California's Upside-Down Mirror Pools | Weird Places
For upside-down mirrors, super hot volcanic chimneys, and neon rocks with living microorganisms, look no further than the Guaymas Basin in the Gulf of California.
TED Talks
TED: How much does a video weigh? | Michael Stevens
What color is a mirror? How much does a video weigh? Michael Stevens, creator of the popular educational YouTube channel Vsauce, spends his day asking quirky questions like these. In this talk he shows how asking the right -- seemingly...