SciShow Kids
Check Out the Satellites!
You might not know it, but there are thousands of human-made satellites orbiting the Earth! They help us do everything from study the climate to make phone calls, and there are even some satellites that people can live on!
SciShow
How Many Colors Can We See?
Quick Questions cracks the code of color vision, color blindness, and even newly discovered sort of technicolor vision!
SciShow
Why We're So Bad at Recycling Plastic
Plastic is quickly becoming a problem and we're eager to point fingers, but honestly, the reason there's so much plastic everywhere isn't just because of human negligence.
Amoeba Sisters
The Cell Cycle (and cancer) [Updated]
Explore the cell cycle with the Amoeba Sisters and an important example of when it is not controlled: cancer. Table of Contents: 00:00 Intro 1:00 Cell Growth and Cell Reproduction 1:42 Cancer (explaining uncontrolled cell growth) 3:27...
SciShow
4 Plants That Are Great for Humans
A quarter of all prescription drugs in the U.S. come from substances that are found only in plants. In this episode of SciShow, we take a look at four of these talented plants who make our lives better.
TED-Ed
TED-ED: How your muscular system works - Emma Bryce
Each time you take a step, 200 muscles work in unison to lift your foot, propel it forward, and set it down. It's just one of the many thousands of tasks performed by the muscular system: this network of over 650 muscles covers the body...
SciShow
Why Tomatoes Are Fruits, and Strawberries Aren't Berries
Did you know that bananas are berries, but strawberries aren't? A lot of thought goes into classifying fruits and vegetables, and it all has to do with anatomy.
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?
TED-Ed
TED-Ed: Are food preservatives bad for you? - Eleanor Nelsen
Food doesn't last. In days, sometimes hours, bread goes moldy, apple slices turn brown, and bacteria multiply in mayonnaise. But you can find all of these foods out on the shelf at the grocery store " hopefully unspoiled -- thanks to...
SciShow
How Quarks Fixed the Mess That Was Particle Physics
Particle physics isn't simple, but it was much more confusing before physicists knew about quarks.
Bozeman Science
Bacteria
Paul Andersen describes the defining characteristics of the domain Eubacteria. He begins with a quick description of the phylogeny of bacteria and horizontal gene transfer. He then surveys the structures of a bacteria; nucleoid region,...
SciShow
What are Blood Types?
Quick Questions explains why, when it comes right down to it, there are really only eight kinds of people in the world.
SciShow Kids
How Do We See Color?
Have you ever taken a bite from a bright red apple and wondered why it looks red to you? Jessi and Squeaks talk about how our eyes and brains help us see color!
Crash Course
Tissues, Part 4 - Types of Connective Tissues: Crash Course A&P
Today Hank wraps up our look at Connective Tissues with a discussion of its various types and a breakdown of what you can and can't easily break down. Also chicken. -- Table of Contents: Loose and Dense Connective Tissue 2:10.4 Areolar,...
Crash Course
Tissues, Part 3 - Connective Tissues: Crash Course A&P
On today's episode of Crash Course Anatomy & Physiology, Hank continues our exploration of tissues, with an introduction to your connective tissues. -- Table of Contents: Four Types of Connective Tissue 2:34.2 All Develop From Mesenchyme...
Crash Course
Blood, Part 1 - True Blood: Crash Course A&P
Now that we've talked about your blood vessels, we're going to zoom in a little closer and talk about your blood itself. We'll start by outlining the basic components of blood -- including erythrocytes, leukocytes, platelets, and plasma...
Bozeman Science
Blood Types
Paul Andersen explains the importance of blood types in blood transfusions. He starts with a brief discussion of blood antigens and antibodies. He describes how the ABO differs from the Rh blood type. He shows you how to solve simple...
SciShow
Why Stimulants Help ADHD
It seems like stimulants and hyperactivity shouldn't mix, so why are they so often prescribed to treat ADHD?
Crash Course
Just Say Noh. But Also Say Kyogen: Crash Course Theater #11
This week on Crash Course Theater, Mike is taking you to Japan to have a look at Noh theater. Noh, and its counterpart Kyogen are some of the most revered theater forms in Japan, and are still performed today. Today you'll learn how Noh...
TED-Ed
TED-Ed: What causes seizures, and how can we treat them? | Christopher E. Gaw
Nearly 3,000 years ago, a Babylonian tablet described a curious illness called "miqtu" that caused symptoms ranging from facial twitching to full body convulsions. Today we know miqtu as seizures, and modern medicine has developed...
Bozeman Science
A Beginner's Guide to Graphing Data
Paul Andersen explains how graphs are used to visually display data that is collected in experimentation. He describes five main types of graphs; line graph, scatter plot, bar graph, histogram and pie chart. He describes the important...
TED Talks
TED: A tailored history of who wears what -- and why | Richard Thompson Ford
From puffy trousers to pantsuits and everything in between, law professor and author Richard Thompson Ford takes us on a fascinating tour through the history of fashion and the evolution of dress codes that still influence style today,...
TED-Ed
TED-ED: The benefits of a bilingual brain - Mia Nacamulli
It's obvious that knowing more than one language can make certain things easier - like traveling or watching movies without subtitles. But are there other advantages to having a bilingual (or multilingual) brain? Mia Nacamulli details...
Crash Course
All Night Demon Dance Party - Kathakali: Crash Course Theater #24
This week, we're headed back to India to learn about the all night dance shows that culminate in killing a Demon (metaphorically): Kathakali! This form arose in the Kerala region of India, and tells traditional Indian stories, but with...