TED-Ed
TED-Ed: Could underwater farms help fight climate change? - Ayana Elizabeth Johnson and Megan Davis
Dive into the world of aquaculture and see how restorative ocean farming could play a vital role in helping our coastal communities, our oceans and our climate. -- For billions of people, seafood provides a significant source of protein...
TED-Ed
TED-Ed: What causes kidney stones? - Arash Shadman
The biggest kidney stone on record weighed more than a kilogram and was 17 centimeters in diameter. The patient didn't actually swallow a stone the size of a coconut; kidney stones form inside the body. So how do they grow in the first...
Crash Course
Population Ecology: The Texas Mosquito Mystery - Crash Course Ecology
Population ecology is the study of groups within a species that interact mostly with each other, and it examines how they live together in one geographic area to understand why these populations are different in one time and place than...
SciShow
How Big Is the Universe?
We all know that the universe is mind-bogglingly gigantic, but how *exactly* mind-bogglingly gigantic is it? Let Hank fill you in on the details that scientists have worked out!
PBS
When Whales Walked
We know whales as graceful giants bound to the sea. But what if we told you there was actually a time when whales could walk.
Crash Course
The Moon
Join Phil for a tour of our capital-M Moon, from surface features, inside to the core, and back in time to theories about its formation.
PBS
The Age of Giant Insects
Insects outnumber humans by a lot and we only like to think we're in charge because we're bigger than they are. But insects and other arthropods weren't always so small. About 315 million years ago during the Carboniferous Period, they...
Crash Course
Reproductive System, part 4 - Pregnancy & Development: Crash Course A&P
We've reached the grand finale of our four part series on human reproduction: BABIES! Today Hank walks you through the stages of pregnancy, beginning with how a zygote develops into blastomeres to a morula to a blastocyst and finally to...
SciShow
The Weird Optical Illusion that Changes the Moon's Size
The full moon might seem bigger on the horizon than when it's higher up, but when does it actually take up more space in the sky?
Bozeman Science
Interference Patterns
In this video Paul Andersen explains how constructive and destructive interference can create interference patterns. Interference patterns can be created by all types of waves, including water, sound, and light. A classic experiment that...
SciShow
SciShow Needs You!
Since January 2012, SciShow has been uploading hard science and good times to viewers just like you around the world. Now, after nearly two years -- and a million subscribers(!) -- we think it's time to take our relationship to a whole...
SciShow Kids
How Do Submarines Work?
Jessi and Squeaks got a question about how submarines go underwater and explore, so Squeaks did some research!
TED-Ed
TED-Ed: Performing brain surgery without a scalpel | Hyunsoo Joshua No
Every year, tens of thousands of people have brain surgery without a single incision: there's no scalpel, no operating table, and the patient loses no blood. Instead, this procedure uses a machine that emits invisible beams of light at a...
Curated Video
Human Population Growth - Crash Course Ecology
If being alive on Earth were a contest, humans would win it hands down. We're like the Michael Phelps of being alive, but with 250,000 times more gold medals. Today Hank is here to tell us the specifics of why and how human population...
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.
PBS
How Did Dinosaurs Get So Huge?
Part of why we're so fascinated with extinct dinosaurs it's just hard for us to believe that animals that huge actually existed. And yet, they existed! From the Jurassic to the Cretaceous Periods, creatures as tall as a five-story...
SciShow
What Really Killed the Dinosaurs
What wiped out the dinosaurs? Most of us were taught it was a killer asteroid—which is true. But it turns out there was more than one disaster movie playing at the cineplex that was Earth 66 million years ago.
Crash Course
Black Holes
We’ve covered a lot of incredible stuff, but this week we’re talking about the weirdest objects in space: BLACK HOLES. Stellar mass black holes form when a very massive star dies, and its core collapses. The core has to be more than...
Crash Course
Why Do We Have Fewer Outbreaks? Epidemiological Transition - Crash Course Outbreak Science
We take it for granted that society gets better at tackling infectious disease over time, but when you really think about it the progress we’ve made in the last century is pretty amazing. How does that much progress happen so quickly?...
Bozeman Science
Concept 3 - Scale, Proportion, and Quantity
In this video Paul Andersen explains the importance of scale in science and engineering. The Universe varies in size along three scales: size, timespan, and energy. Many phenomenon are too small and fast, or two large and slow to...
TED Talks
TED: Why I make robots the size of a grain of rice | Sarah Bergbreiter
By studying the movement and bodies of insects such as ants, Sarah Bergbreiter and her team build incredibly robust, super teeny, mechanical versions of creepy crawlies … and then they add rockets. See their jaw-dropping developments in...
Be Smart
Asteroids, Meteors, and Comets.... OH MY!!!
Learn about asteroids, meteors, and comets and how they can affect earth!
SciShow Kids
Meet the 5 Dwarf Planets!
Jessi introduces you to some of the most newly-named members of the solar system: the five dwarf planets!