TED-Ed
TED-Ed: From DNA to Silly Putty, the diverse world of polymers - Jan Mattingly
You are made of polymers, and so are trees and telephones and toys. A polymer is a long chain of identical molecules (or monomers) with a range of useful properties, like toughness or stretchiness -- and it turns out, we just can't live...
SciShow
Why Scientists Dumped a Bunch of Dead Alligators in the Ocean
We still don't know a lot about the deep sea, but thanks to the help of three dead alligators, we know more about the diets of some of the creatures that live there.
SciShow
Alice in Wonderland Syndrome
Your head feels too big and things just keep getting curiouser and curiouser. Did you step through the looking glass or is it a super rare neurological condition?
SciShow
Hearing Colors, Seeing Sounds: Synesthesia
Hank explains the little we know about the perceptual condition known as synesthesia, where a person involuntary associates one sensation or experience with another sensation.
TED-Ed
TED-ED: How to sequence the human genome - Mark J. Kiel
Your genome, every human's genome, consists of a unique DNA sequence of A's, T's, C's and G's that tell your cells how to operate. Thanks to technological advances, scientists are now able to know the sequence of letters that makes up an...
SciShow
3 Ways We Could Transform the Future of Food
As the population grows, the demand for food is only going to increase, but luckily, scientists are already working to solve this problem.
SciShow
Mendel Got Extremely Lucky (...or Maybe He Lied)
Science, while often the result of a stroke of genius, can just as easily be a stroke of extraordinarily good luck. Mendel’s work just happened to be a mix of the two.
SciShow
4 Big Reasons to Get Your Eyes Checked (Even With 20/20 Vision)
If you don't have vision problems, getting an eye exam probably hasn't been your top priority, however visiting an ophthalmologist won't just tell you about your eyes, it can reveal a lot about your health.
Crash Course
The Normal Distribution - Crash Course Statistics
Today is the day we finally talk about the normal distribution! The normal distribution is incredibly important in statistics because distributions of means are normally distributed even if populations aren't. We'll get into why this is...
Amoeba Sisters
Mitosis: The Amazing Cell Process that Uses Division to Multiply! (Updated)
Updated Mitosis Video. The Amoeba Sisters walk you through the reason for mitosis with mnemonics for prophase, metaphase, anaphase, and telophase. Table of Contents: 00:00 Intro 0:44 Why is Mitosis Important? 2:00 Why Don't You Want...
TED-Ed
TED-Ed: What is dyslexia? - Kelli Sandman-Hurley
Dyslexia affects up to 1 in 5 people, but the experience of dyslexia isn't always the same. This difficulty in processing language exists along a spectrum -- one that doesn't necessarily fit with labels like "normal" and "defective."...
SciShow
Dire Wolves Were Real! But Not Wolves
When you hear the words dire wolf, your mind might jump to Game of Thrones or Dungeons and Dragons, but dire wolves are not just in the realm of fantasy and fiction. They were real animals that lived during the last Ice Age, and we're...
TED-Ed
TED-ED: What happens during a heart attack? - Krishna Sudhir
Approximately seven million people around the world die from heart attacks every year. And cardiovascular disease, which causes heart attacks and other problems like strokes, is the world's leading killer. So what causes a heart attack?...
SciShow
Why We Respond to Disasters with Altruism
The idea that humans react to disasters by losing control and acting selfishly is all too prevalent, especially in movies and television. But recent studies on altruism may provide evidence that this isn’t always the case, and this...
SciShow
Unexpected Dangers of Sports
From turf toe to toxic Zamboni's, sports injuries aren't just for pro athletes.
SciShow
Here's What Kevlar and Your Smartphone Have in Common
You might not believe it, but the same chemistry that brought us bulletproof vests and modern sailing sails also gave us the technology to build your smart phone. But that doesn’t mean these chemists were thinking about these...
Be Smart
What Is Evolution, Anyway? - 12 Days of Evolution #1
Some of the biggest evolution questions finally answered.
TED-Ed
TED-Ed: 4 signs of emotional abuse | Viann Nguyen-Feng
Emotional abuse can be incredibly damaging, increasing a person's chances of developing depression and anxiety. But these behaviors can be subtle and difficult to spot, both from within and outside a relationship. It also often makes...
Be Smart
Why Do We Cook?
Why do humans cook? Holidays are celebrated in many ways, but chances are they involve eating, and eating a LOT. Ever wonder why we cook our food? We do it because it tastes good, of course, and because our customs and traditions are...
Crash Course
OCD & Anxiety Disorders: Crash Course Psychology
Ever call someone OCD because they like to have a clean apartment? Ever tell someone you have a phobia of spiders when, in fact, they just creep you out a little? In this episode of Crash Course psychology, Hank talks about OCD and...
PBS
What Was the Ancestor of Everything?
The search for our origins go back to a single common ancestor -- one that remains shrouded in mystery. It's the ancestor of everything we know and today scientists call it the last universal common ancestor, or LUCA.
Crash Course
Medieval Europe: Crash Course European History
Our European history is going to start around 1500 with the Renaissance, but believe it or not, that is not the actual beginning of history in the continent. So, today, we're going to teach you the broad outlines of the so-called Middle...
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...
Crash Course
How To Speak Chemistrian: Crash Course Chemistry
Learning to talk about chemistry can be like learning a foreign language, but Hank is here to help with some straightforward and simple rules to help you learn to speak Chemistrian like a native. Table of Contents Determining Formulas...