Crash Course
Digestive System, Part 1: Crash Course A&P
Nachos are delicious. And versatile because today they're also going to help us learn a thing or two about your digestive system. Nachos can provide us with energy and raw materials, by first ingesting something nutritious, propelling it...
TED Talks
Sam Martin: Claim your "manspace"
Author Sam Martin shares photos of a quirky world hobby that's trending with the XY set: "manspaces." (They're custom-built hangouts where a man can claim a bit of his own territory to work, relax, be himself.) Grab a cold one and enjoy.
Crash Course
Friction: Crash Course Physics
Why is it hard to move a heavy bookcase across a carpeted floor? And why is it easier to keep it moving than it was to get it started moving? You might think it's all about weight, but actually it's about friction. Two kinds of friction!...
TED Talks
Shigeru Ban: Emergency shelters made from paper
Long before sustainability was a buzzword, architect Shigeru Ban was using ecologically sound building materials such as cardboard tubes. He uses them to build remarkable temporary structures for disaster-struck nations such as Haiti,...
TED-Ed
TED-ED: What is metallic glass? - Ashwini Bharathula
Steel and plastic are essential to much of our infrastructure and technology. Steel is strong and hard, but difficult to shape intricately. Plastic can take on just about any form, but it's weak and soft. Wouldn't it be nice if there...
TED Talks
Joe Smith: How to use a paper towel
You use paper towels to dry your hands every day, but chances are, you're doing it wrong. In this enlightening and funny short talk, Joe Smith reveals the trick to perfect paper towel technique.
TED Talks
TED: How we could make carbon-negative concrete | Tom Schuler
Concrete is all around us: we use it to build our roads, buildings, bridges and much more. Yet over the last 2,000 years, the art of mixing cement and using it to bind concrete hasn't changed very much -- and it remains one of the...
TED Talks
TED: How we're harnessing nature's hidden superpowers | Oded Shoseyov
What do you get when you combine the strongest materials from the plant world with the most elastic ones from the insect kingdom? Super-performing materials that might transform ... everything. Nanobiotechnologist Oded Shoseyov walks us...
TED Talks
TED: Architecture that's built to heal | Michael Murphy
Architecture is more than a clever arrangement of bricks. In this eloquent talk, Michael Murphy shows how he and his team look far beyond the blueprint when they're designing. Considering factors from airflow to light, theirs is a...
SciShow Kids
Build the Best Solar Oven Ever! | Engineering Project
Mister Brown and Squeaks decide to design a solar oven, so they can cook their lunch while they play outside!
TED Talks
TED: 3 creative ways to fix fashion's waste problem | Amit Kalra
What happens to the clothes we don't buy? You might think that last season's coats, trousers and turtlenecks end up being put to use, but most of it (nearly 13 million tons each year in the united States alone) ends up in landfills....
TED-Ed
TED-Ed: How to squeeze electricity out of crystals - Ashwini Bharathula
It might sound like science fiction, but if you press on a crystal of sugar, it will actually generate its own electricity. This simple crystal can act like a tiny power source because sugar happens to be piezoelectric. Ashwini...
SciShow
Do You Need a Copper Pot?
Some chefs swear by copper pots and pans, but they are much more expensive than other materials. Are they worth it? Well, it all comes down to electrons!
SciShow
Why Can’t We Make New Stradivari Violins?
Stradivarius are synonymous with quality, but how we can replicate their sound is a mystery!
SciShow
The Greenest Grocery Bag
It seems like a simple question with a straightforward answer, but when you look at the total environmental impact of each type of bag, things start to get a little complicated.
TED-Ed
TED-Ed: Magical metals, how shape memory alloys work - Ainissa Ramirez
From robots to braces to the Mars Rover, see how a special kind of metal called shape memory alloys advance technology in everyday ways that we don't always realize.
SciShow
Is Spider Silk the Future of Material Engineering?
Spiders have a long and fabled history of being a notorious creepy-crawly, but their silk might just change that image. Here are six ways in which spider silk is being studied to improve life for human beings.
TED-Ed
TED-Ed: If superpowers were real: Invisibility - Joy Lin
What if invisibility wasn't just the stuff of epic comic book stories? Is it scientifically possible to be invisible? In this series, Joy Lin tackles six superpowers and reveals just how scientifically realistic they can be to us mere...
TED Talks
Erik Schlangen: A "self-healing" asphalt
Paved roads are nice to look at, but they're easily damaged and costly to repair. Erik Schlangen demos a new type of porous asphalt made of simple materials with an astonishing feature: When cracked, it can be "healed" by induction heating.
Crash Course
Electric Current: Crash Course Physics
So, electric current works like a river... kinda... Instead of flowing based on elevation, electric current works a little differently. But it's a good metaphor. In this episode of Crash Course Physics, Shini talks to us about electric...
TED Talks
Jonathan Wilker: What sticky sea creatures can teach us about making glue
What if we could harness the sticking powers of sea creatures like mussels, oysters and barnacles, which refuse to budge even on wet, stormy coastlines? Dive into the wonderful world of animals that make their own glue and cement with...
TED Talks
Marisa Fick-Jordan: The wonder of Zulu wire art
In this short, image-packed talk, Marisa Fick-Jordan talks about how a village of traditional Zulu wire weavers built a worldwide market for their dazzling work.
SciShow
A New Asteroid Mining Mission!
The future is bright for those of you who want to be asteroid miners! You might soon get your chance!
Crash Course Kids
Organizing Properties
Have you ever thought about all the different kinds of groups you’re a part of? Like, there’s the friends you hang out with and your family, your hockey team, your Crash Course fan club, and that’s just for starters! And even though...