TED-Ed
TED-Ed: Which is better: Soap or sanitizer?
Your hands, up close, are anything but smooth. With peaks and valleys, folds and rifts, there are plenty of hiding places for a virus to stick. If you then touch your face, the virus can infect you. But there are two extraordinarily...
Crash Course
Acid-Base Reactions in Solution: Crash Course Chemistry
Last week, Hank talked about how stuff mixes together in solutions. Today, and for the next few weeks, he will talk about the actual reactions happening in those solutions - atoms reorganizing themselves to create whole new substances in...
SciShow
What Makes Soft Things Soft
You're minding your own business, looking at blankets, when suddenly you feel something heavenly. Now you are petting an inanimate object and thinking about naming it and bringing it home. Why do some fabrics feel so soft?!
TED-Ed
TED-ED: How miscommunication happens (and how to avoid it) - Katherine Hampsten
Have you ever talked with a friend about a problem, only to realize that he just doesn't seem to grasp why the issue is so important to you? Have you ever presented an idea to a group, and it's met with utter confusion? What's going on...
TED-Ed
TED-Ed: 3 tips to boost your confidence
When faced with a big challenge where potential failure seems to lurk at every corner, you’ve probably heard the advice, “Be more confident!” But where does confidence come from, and how can you get more of it? Here are three easy tips...
SciShow
Epigenetics
Hank & his clone Circus Hank explain the power of epigenetics, which studies the factors that determine how much or whether some genes are expressed in your body.
SciShow
The Psychology of Emojis
A group of British and Australian cyberpsychologists argues that emojis deserve way more research attention than they're getting - and scientists have discovered how to create on-demand killer mice!
SciShow
Where Do Our Facial Expressions Come From?
Our facial expressions convey a lot about our emotions, but why? Hank explores how our evolution has helped form how we communicate with our faces.
TED Talks
TED: The secret to living longer may be your social life | Susan Pinker
The Italian island of Sardinia has more than six times as many centenarians as the mainland and ten times as many as North America. Why? According to psychologist Susan Pinker, it's not a sunny disposition or a low-fat, gluten-free diet...
Crash Course
Probability Part 1 Rules and Patterns - Crash Course Statistics
Today we’re going to begin our discussion of probability. We’ll talk about how the addition (OR) rule, the multiplication (AND) rule, and conditional probabilities help us figure out the likelihood of sequences of events happening - from...
SciShow
Why You See Monsters in the Mirror
Staring into the mirror in a dark room can play some nasty tricks on your brain. Like many illusions, this can tell us about how your brain processes images.
SciShow
6 Creative Ways People Used to Navigate the Oceans
People have been exploring the oceans since prehistoric times, way before they had GPS to help them figure out where they were. Here are 6 ingenious ways our ancestors navigated the oceans.
TED Talks
How to turn a group of strangers into a team | Amy Edmondson
Business school professor Amy Edmondson studies ""teaming,"" where people come together quickly (and often temporarily) to solve new, urgent or unusual problems. Recalling stories of teamwork on the fly, such as the incredible rescue of...
TED-Ed
TED-Ed: The hidden treasures of Timbuktu | Elizabeth Cox
On the edge of the vast Sahara desert, citizens snuck out of the city of Timbuktu and took to the wilderness. They buried chests in the desert sand, hid them in caves, and sealed them in secret rooms. Inside these chests was a treasure...
TED-Ed
TED-Ed: Overcoming obstacles - Steven Claunch
When faced with a bump in the road, sometimes we forget we have a choice: overcome the obstacle or let it overcome you. Steven Claunch, who was born without fingers on his right hand and with one leg shorter than the other and has...
SciShow
The Real Science of Forensics
In this episode of SciShow, we're going to investigate a murder. But first, we're going to have to learn all about forensics, the use of science in criminal law -- and the real-life version is a little different from what you might see...
TED Talks
TED: And for my next trick, a robot | Marco Tempest
Marco Tempest uses charming stagecraft to demo EDI, the multi-purpose robot designed to work very closely with humans. Less a magic trick than an intricately choreographed performance, Tempest shows off the robot’s sensing technology,...
Bozeman Science
The Cell Membrane
Paul Andersen gives you a brief introduction to the cell membrane. He starts by describing amphipathic nature of a phospholipid and how it assembles into a membrane. He gives an overview of the fluid mosaic model inside cells. He also...
Crash Course
Ragnarok: Crash Course World Mythology
Ragnarok! It's the end of the world, Norse style. It's got everything you want in an apocalypse. Earthquakes, destruction, armies of the dead, a giant evil wolf, giants with flaming swords, and a kind of happy ending. It's got it all....
SciShow
Hydrogen Bonding…but With Carbon | Great minds: June Sutor
Proteins, and by extension our bodies, depend on the fact that atoms are arranged, spaced, and linked to each other in specific ways. And thanks to June Sutor, we have a better understanding of how those atoms come together and interact...
Crash Course
Test Anxiety: Crash Course Study Skills
Exams can be terrifying. It's easy to feel like the weight of the world rests in these moments - like this one test determines your grades and, in turn, your whole future - even if you know, rationally, that this isn't really the case....
TED Talks
Daniel Reisel: The neuroscience of restorative justice
Daniel Reisel studies the brains of criminal psychopaths (and mice). And he asks a big question: Instead of warehousing these criminals, shouldn't we be using what we know about the brain to help them rehabilitate? Put another way: If...
TED-Ed
TED-Ed: Why is pneumonia so dangerous? | Eve Gaus and Vanessa Ruiz
Every time you breathe, air travels down the trachea, through a series of channels, and then reaches little clusters of air sacs in the lungs. These tiny sacs facilitate a crucial exchange: allowing oxygen from the air we breathe into...