SciShow
How To Fly More Fuel-Efficiently
Airplanes use a lot of fuel, which means a lot of CO2 emissions. So, to help reduce the impact of aviation, engineers are looking to animals (like sharks) for some ways they can make airliners more efficient.
TED-Ed
TED-Ed: Why can't we see evidence of alien life? - Chris Anderson
Stand by for an animated exploration of the famous Fermi Paradox. Given the vast number of planets in the universe, many much older than Earth, why haven't we yet seen obvious signs of alien life? The potential answers to this question...
TED-Ed
TED-Ed: Claws vs. nails | Matthew Borths
Consider the claw. Frequently found on animals around the world, it's one of nature's most versatile tools. Bears use claws for digging as well as defense. An eagle's needle-like talons can pierce the skulls of their prey. Even the...
SciShow
The Ups and Downs of Air Turbulence
Ever wonder why sometimes the airplane you're flying on decides to lurch suddenly and cause your little baggie of peanuts to spill all over the place? Join Hank on SciShow today as he explores the in and outs and the ups and downs of...
SciShow
Why Does Rain Smell?
Almost everyone loves the smell of rain, but where does the smell come from? Join Quick Questions as we stop and smell the chemistry!
Be Smart
Why Do We Laugh?
Laughing is a universal human behavior, one that transcends borders of language and culture. But it's also REALLY WEIRD. Why do we do it? The answer has less to do with humor than you might think
PBS
The Search for the Earliest Life
More than 4 billion years ago, the crust of the Earth was still cooling and the oceans were only beginning to form. But in recent years, we've started to discover that, even in this hellish environment, life found a way.
SciShow
Silicon-Based Life: Could Living Rocks Exist?
It's possible life could form based on elements other than carbon, but they would look much different than the life we are used to.
SciShow
Cherenkov Radiation : Particles Faster Than the Speed of Light?
In something like water, particles like electrons can beat light in a race - and cause a blue glow to prove it.
SciShow
Cavitation
Hank tells you about cavitation - the power of tiny bubbles to weaken metal, kill fish & maybe even cure cancer.
Crash Course Kids
A Change of Scenery
The world changes. It really does! But sometimes it changes so slowly that we don't notice it. Other times it changes REALLY FAST!!! In this episode of Crash Course Kids, Sabrina talks about some of the reasons things can change quickly...
SciShow
Why Is This Island Disappearing?
Hoboro Island off the coast of Japan may soon be an island of the past, and it’s primarily due to one unsuspecting isopod.
SciShow Kids
Why Does the Moon Change?
Have you ever wondered why, some nights, the moon looks like a big, bright circle, and some nights it looks like a little sliver? Join Jessi and Squeaks to learn about how the moon's orbit changes the way we see it here on Earth!
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-Ed
TED-ED: A brief history of banned numbers - Alessandra King
They say the pen is mightier than the sword, and authorities have often agreed. From outlawed religious tracts and revolutionary manifestos to censored and burned books, we know the potential power of words to overturn the social order....
SciShow
The Two-Faced Role of Planetary Magnetic Fields
Given that Earth’s magnetic field helps protect its life-sustaining atmosphere, you might think that the stronger a planet’s magnetic field, the better. But as it turns out, some planets’ relationships with their magnetic fields are a...
SciShow
Do Fat Cells Ever Really Go Away?
Okay- you lost weight, but what actually happened to those fat-storing cells?
SciShow Kids
The Very First Living Thing! | The History of Life! | SciShow Kids
Squeaks built a pretend time machine, and he and Mister Brown use their imaginations to travel back in time to learn all about the very first living thing! Second Grade Next Generation Science Standards Disciplinary Core Ideas: LS4.D:...
PBS
How Two Microbes Changed History
What if I told you that, more than two billion years ago, some tiny living thing started to live inside another living thing .... and never left? And now, the descendants of both of those things are in you?
Crash Course
Biological Molecules - You Are What You Eat: Crash Course Biology
Hank talks about the molecules that make up every living thing - carbohydrates, lipids, and proteins - and how we find them in our environment and in the food that we eat.
Crash Course
Mass Separation: Crash Course Engineering #17
It can be really important to separate out chemicals for all kinds of reasons. Today we’re going over three different processes engineers use to achieve that separation: distillation, which separates substances based on their different...
SciShow
3 Cosmic Time Capsules
Long before we were around, the universe was preserving clues about the distant past, in everything from little balls of carbon to huge groups of stars.
SciShow
Awesome Animal Dads
Let's talk about some of the awesome single dads out there in the animal kingdom!
TED Talks
Ajit Narayanan: A word game to communicate in any language
While working with kids who have trouble speaking, Ajit Narayanan sketched out a way to think about language in pictures, to relate words and concepts in "maps." The idea now powers the FreeSpeech app, which can help nonverbal people...