Search Results: "Sod"

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13:53
Sodium Potassium Pump

431 views / 0 likes - added 9 years ago

How a sodium potassium pump can maintain a voltage gradient across a cell or neuron's membrane More free lessons at: http://www.khanacademy.org/video?v=C_H-ONQFjpQ
06:48
Correction to Sodium and Potassium Pump Video

620 views / 0 likes - added 9 years ago

Correction to Sodium and Potassium Pump Video More free lessons at: http://www.khanacademy.org/video?v=ye3rTjLCvAU
07:01 Popular
How a Bill Becomes a Law: Crash Course Government and Politics #9

788 views / 1 likes - added 9 years ago

Oh my, Craig has his work cut out for him this week. The process of how a bill becomes a law can be pretty complex, fraught with potential bill-death at every corner. As if just getting through committee isn’t difficult enough, bills have to navigate a se
06:36
Congressional Decisions: Crash Course Government and Politics #10

630 views / 0 likes - added 9 years ago

This week Craig breaks out the crystal ball to try and figure out why our congresspeople do the things that they do. We’ll talk about the three motivating factors of congressional decisions - constituency, interest groups, and political parties - and we’l
06:30 Popular
Presidential Power: Crash Course Government and Politics #11

735 views / 0 likes - added 9 years ago

This week Craig looks at the expressed powers of the President of the United States - that is the ones you can find in the Constitution. From appointing judges and granting pardons, to vetoing laws and acting as the nation’s chief diplomat on foreign poli
12:12 Popular
Introduction to Astronomy: Crash Course Astronomy #1

717 views / 3 likes - added 9 years ago

Welcome to the first episode of Crash Course Astronomy. Your host for this intergalactic adventure is the Bad Astronomer himself, Phil Plait. We begin with answering a question: "What is astronomy?" -- Table of Contents: What is Astronomy? 3:00 Who Studie
09:46 Popular
Moon Phases: Crash Course Astronomy #4

1,951 views / 6 likes - added 9 years ago

In this episode of Crash Course Astronomy, Phil takes you through the cause and name of the Moon's phases. -- Why the Moon Has Phases 0:36.1 Spheres in Orbit 1:05.4 Name of the Moon Phases 2:25.5 How We See It 7:48.2 -- PBS Digital Studios: http://youtube
10:32 Popular
Eclipses: Crash Course Astronomy #5

831 views / 0 likes - added 9 years ago

The big question in the comments last week was, "BUT WHAT ABOUT ECLIPSES?" Today, Phil breaks 'em down for you. This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse -- As promised, Phil's sun spotting recommendations: Astronome
10:03 Popular
The Gravity of the Situation: Crash Course Astronomy #7

760 views / 0 likes - added 9 years ago

In today's episode, Phil looks at how gravity plays out across the universe. This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse -- Gravity is a Force 2:17 Different Types of Orbit 3:41 Escape Velocity 5:30 Weightless Mass 7:0
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Introduction to the Solar System: Crash Course Astronomy #9

977 views / 1 likes - added 9 years ago

In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a giant ball of gas to the system of planets and other celestial objects we have today. This episode is sponsored by Squaresp
12:04 Popular
The Sun: Crash Course Astronomy #10

796 views / 2 likes - added 9 years ago

Phil takes us for a closer (eye safe!) look at the two-octillion ton star that rules our solar system. We look at the sun's core, plasma, magnetic fields, sunspots, solar flares, coronal mass ejections, and what all of that means for our planet. This epis
09:51 Popular
The Moon: Astronomy #12

954 views / 1 likes - added 9 years ago

Join Phil for a tour of our capital-M Moon, from surface features, inside to the core, and back in time to theories about its formation. This episode is brought to you by Squarespace: http://www.squarespace.com/crashcourse -- Table of Contents Many Millio
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Introduction to Anatomy&Physiology: Crash Course A&P #1

849 views / 0 likes - added 9 years ago

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10:43 Popular
Tissues, Part 1: Crash Course A&P #2

888 views / 0 likes - added 9 years ago

•••SUBBABLE MESSAGE••• TO: Jordan Schoonover FROM: Mom, Dad&Madison Happy Birthday Jordan! We love you sweetheart!! *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything w
10:29 Popular
Tissues, Part 3 - Connective Tissues: Crash Course A&P #4

1,136 views / 0 likes - added 9 years ago

•••SUBBABLE MESSAGE••• TO: Ashley FROM: Fee Happy birthday nerd also I love you lots and lots *** You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Also, if y
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Central Nervous System: Crash Course A&P #11

1,188 views / 1 likes - added 9 years ago

Today Hank talks about your central nervous system. In this episode we'll explore how your brain develops and how important location is for each of your brain's many functions. Table of Contents Central Nervous System, Location and Brain Function 1:48 Bra
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Autonomic Nervous System: Crash Course A&P #13

1,512 views / 1 likes - added 9 years ago

Hank takes you on a tour of your two-part autonomic nervous system. This episode explains how your sympathetic nervous system and parasympathetic nervous system work together as foils, balancing each other out. Their key anatomical differences - where ner
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The Big Bang: Crash Course Big History #1

1,184 views / 4 likes - added 9 years ago

In which John Green, Hank Green, and Emily Graslie teach you about, well, everything. Big History is the history of everything. We're going to start with the Big Bang, take you right through all of history (recorded and otherwise), and even talk a little
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Life Begins: Crash Course Big History #4

879 views / 1 likes - added 9 years ago

In which Hank and John Green teach you about life on Earth. They won't be giving advice on how life should be lived, because this is a history series. Instead, they'll teach you about the earliest forms of life on Earth, and some of the ways that they dev
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Asian Responses to Imperialism: Crash Course World History #213

801 views / 0 likes - added 9 years ago

In which John Green teaches you about Imperialism, but not from the perspective of the colonizers. This week John looks at some Asian perspectives on Imperialism, specifically writers from countries that were colonized by European powers. We'll look at th
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Charles V and the Holy Roman Empire: Crash Course World History #219

1,089 views / 2 likes - added 9 years ago

Get the new Crash Course World History Character poster here: http://store.dftba.com/products/crashcourse-characters-poster In which John Green teaches you about the Holy Roman Empire by teaching you about Charles V. Charles Hapsburg was the holy Roman Em
10:14 Popular
The Chemical Mind - Crash Course Psychology #3

936 views / 0 likes - added 9 years ago

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12:34 Popular
Meet Your Master: Getting to Know Your Brain - Crash Course Psychology #4

912 views / 0 likes - added 9 years ago

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10:46 Popular
Sensation&Perception - Crash Course Psychology #5

742 views / 0 likes - added 9 years ago

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10:24 Popular
Homunculus - Crash Course Psychology #6

715 views / 0 likes - added 9 years ago

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10:00
Perceiving is Believing - Crash Course Psychology #7

676 views / 0 likes - added 9 years ago

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09:34 Popular
Consciousness - Crash Course Psychology #8

1,096 views / 0 likes - added 9 years ago

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10:41 Popular
To Sleep, Perchance to Dream - Crash Course Psychology #9

1,311 views / 0 likes - added 9 years ago

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11:19
Altered States - Crash Course Psychology #10

682 views / 0 likes - added 9 years ago

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09:35 Popular
The Bobo Beatdown - Crash Course Psychology #12

842 views / 0 likes - added 9 years ago

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09:55 Popular
How We Make Memories - Crash Course Psychology #13

1,134 views / 0 likes - added 9 years ago

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10:18 Popular
Remembering and Forgetting - Crash Course Psychology #14

939 views / 1 likes - added 9 years ago

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10:42 Popular
Cognition: How Your Mind Can Amaze and Betray You - Crash Course Psychology #15

905 views / 1 likes - added 9 years ago

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10:02 Popular
Language: Crash Course Psychology #16

876 views / 0 likes - added 9 years ago

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11:20 Popular
The Power of Motivation: Crash Course Psychology #17

1,014 views / 0 likes - added 9 years ago

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09:50 Popular
The Growth of Knowledge: Crash Course Psychology #18

1,034 views / 0 likes - added 9 years ago

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11:38 Popular
Monkeys and Morality: Crash Course Psychology #19

841 views / 0 likes - added 9 years ago

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10:15 Popular
Adolescence: Crash Course Psychology #20

1,021 views / 0 likes - added 9 years ago

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12:24 Popular
Rorschach&Freudians: Crash Course Psychology #21

705 views / 0 likes - added 9 years ago

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12:39 Popular
Controversy of Intelligence: Crash Course Psychology #23

991 views / 0 likes - added 9 years ago

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11:04 Popular
Brains Vs. Bias: Crash Course Psychology #24

709 views / 1 likes - added 9 years ago

***Subbable Message*** To: Everyone! Life is short. Don't forget to be awesome. Please. From: Dr. Dot To: All Living People Prepare - for I am about to take over the world. From: S.J. Black ****** You can directly support Crash Course at http://www.subbab
10:51 Popular
Feeling All the Feels: Crash Course Psychology #25

737 views / 2 likes - added 9 years ago

***Subbable Message*** To Robert, Thank you for showing me the world, darling! From Amy and That's happiness; to be dissolved into something complete and great. From Ty Scaletta ****** You can directly support Crash Course at http://www.subbable.com/crash
10:20 Popular
Emotion, Stress and Health: Crash Course Psychology #26

966 views / 1 likes - added 9 years ago

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10:10 Popular
Psychological Disorders: Crash Course Psychology #28

871 views / 0 likes - added 9 years ago

***SUBBABLE MESSAGES*** To: Lola From: Daddy You are the best, I love you. *** To: Future Lia From: Mom and Dad Remember that learning isn't just useful, but also really fun! *** You can directly support Crash Course at http://www.subbable.com/crashcourse
11:32 Popular
OCD&Anxiety Disorders: Crash Course Psychology #29

891 views / 0 likes - added 9 years ago

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10:00
Depressive and Bipolar Disorders: Crash Course Psychology #30

685 views / 2 likes - added 9 years ago

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10:51
Trauma&Addiction: Crash Course Psychology #31

654 views / 0 likes - added 9 years ago

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11:44
Schizophrenia&Dissociative Disorders: Crash Course Psychology #32

608 views / 0 likes - added 9 years ago

••• Subbable Message ••• To: Margarete From: Toni Your sister thinks you are the best! Here's hoping Crash Course does an Art History season just for you. :) ••• To get your own message in the dooblydoo, you can directly support Crash Course at http://www
10:12 Popular
Eating and Body Dysmorphic Disorders: Crash Course Psychology #33

740 views / 0 likes - added 9 years ago

Get Help: If you think you have an eating disorder, please contact http://www.nationaleatingdisorders.org/ for help! You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we'r
10:58 Popular
Personality Disorders: Crash Course Psychology #34

875 views / 1 likes - added 9 years ago

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11:23 Popular
Getting Help - Psychotherapy: Crash Course Psychology #35

705 views / 0 likes - added 9 years ago

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11:09
Biomedical Treatments: Crash Course Psychology #36

684 views / 0 likes - added 9 years ago

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10:48 Popular
Social Thinking: Crash Course Psychology #37

706 views / 0 likes - added 9 years ago

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10:08 Popular
Social Influence: Crash Course Psychology #38

764 views / 0 likes - added 9 years ago

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09:54 Popular
Prejudice&Discrimination: Crash Course Psychology #39

765 views / 0 likes - added 9 years ago

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10:41
Aggression V. Altruism: Crash Course Psychology #40

679 views / 0 likes - added 9 years ago

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10:12 Popular
The Nucleus: Crash Course Chemistry #1

913 views / 1 likes - added 9 years ago

Hank does his best to convince us that chemistry is not torture, but is instead the amazing and beautiful science of stuff. Chemistry can tell us how three tiny particles - the proton, neutron and electron - come together in trillions of combinations to f
12:47
Stoichiometry: Chemistry for Massive Creatures - Crash Course Chemistry #6

680 views / 0 likes - added 9 years ago

Chemists need stoichiometry to make the scale of chemistry more understandable - Hank is here to explain why, and to teach us how to use it. Table of Contents Atomic Mass Units 2:24 Moles 5:12 Molar Mass 5:59 Equation Balancing 8:45 Molar Ratios 11:11 Cra
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Precipitation Reactions: Crash Course Chemistry #9

662 views / 0 likes - added 9 years ago

A lot of ionic compounds dissolve in water, dissociating into individual ions. But when two ions find each other that form an insoluble compound, they suddenly fall out of solution in what's called a precipitation reaction. In this episode of Crash Course
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The Ideal Gas Law: Crash Course Chemistry #12

1,154 views / 0 likes - added 9 years ago

Gases are everywhere, and this is good news and bad news for chemists. The good news: when they are behaving themselves, it's extremely easy to describe their behavior theoretically, experimentally and mathematically. The bad news is they almost never beh
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Ideal Gas Problems: Crash Course Chemistry #13

920 views / 0 likes - added 9 years ago

We don't live in a perfect world, and neither do gases - it would be great if their particles always fulfilled the assumptions of the ideal gas law, and we could use PV=nRT to get the right answer every time. Unfortunately, the ideal gas law (like our cul
11:55 Popular
Partial Pressures&Vapor Pressure: Crash Course Chemistry #15

716 views / 0 likes - added 9 years ago

This week we continue to spend quality time with gases, more deeply investigating some principles regarding pressure - including John Dalton's Law of Partial Pressures, vapor pressure - and demonstrating the method for collecting gas over water. Table of
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Passing Gases: Effusion, Diffusion and the Velocity of a Gas - Crash Course Chemistry #16

1,284 views / 0 likes - added 9 years ago

We have learned over the past few weeks that gases have real-life constraints on how they move here in the non-ideal world. As with most things in chemistry (and also in life) how a gas moves is more complex than it at first appears. In this episode, Hank
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Enthalpy: Crash Course Chemistry #18

1,128 views / 0 likes - added 9 years ago

Energy is like the bestest best friend ever and yet, most of the time we take it for granted. Hank feels bad for our friend and wants us to learn more about it so that we can understand what it's trying to tell us - like that any bond between two atoms co
11:57 Popular
Calorimetry: Crash Course Chemistry #19

728 views / 0 likes - added 9 years ago

Today's episode dives into the HOW of enthalpy. How we calculate it, and how we determine it experimentally...even if our determinations here at Crash Course Chemistry are somewhat shoddy. -- Table of Contents Hess' Law 2:30 Calorimeter 3:12 Calorimetry 3
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Atomic Hook-Ups - Types of Chemical Bonds: Crash Course Chemistry #22

945 views / 0 likes - added 9 years ago

Atoms are a lot like us - we call their relationships "bonds," and there are many different types. Each kind of atomic relationship requires a different type of energy, but they all do best when they settle into the lowest stress situation possible. The n
11:38
Bonding Models and Lewis Structures: Crash Course Chemistry #24

700 views / 0 likes - added 9 years ago

Models are great, except they're also usually inaccurate. In this episode of Crash Course Chemistry, Hank discusses why we need models in the world and how we can learn from them... even when they're almost completely wrong. Plus, Lewis Structures! -- Tab
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Orbitals: Crash Course Chemistry #25

884 views / 0 likes - added 9 years ago

In this episode of Crash Course Chemistry, Hank discusses what Molecules actually look like and why, some quantum-mechanical three dimensional wave functions are explored, he touches on hybridization, and delves into sigma and pi bonds. -- Table of Conten
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Liquids: Crash Course Chemistry #26

744 views / 1 likes - added 9 years ago

In this episode of Crash Course Chemistry, Hank gives you the low down on things like London Dispersion Forces, Hydrogen Bonds, Cohesion, Adhesion, Viscosity, Capillary Action, Surface Tension, and why liquids are just... WEIRD! -- TABLE OF CONTENTS Londo
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Equilibrium: Crash Course Chemistry #28

1,176 views / 0 likes - added 9 years ago

In this episode of Crash Course Chemistry, Hank goes over the ideas of keeping your life balance... well, your chemical life. Equilibrium is all about balance and today Hank discusses Chemical Equilibrium, Concentration, Temperature, and Pressure. Also, h
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pH and pOH: Crash Course Chemistry #30

909 views / 1 likes - added 9 years ago

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11:41 Popular
Buffers, the Acid Rain Slayer: Crash Course Chemistry #31

1,014 views / 2 likes - added 9 years ago

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09:57
Kinetics: Chemistry's Demolition Derby - Crash Course Chemistry #32

629 views / 0 likes - added 9 years ago

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08:20 Popular
Network Solids and Carbon: Crash Course Chemistry #34

929 views / 0 likes - added 9 years ago

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09:27 Popular
Silicon - The Internet's Favorite Element: Crash Course Chemistry #35

1,291 views / 0 likes - added 9 years ago

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09:04 Popular
Electrochemistry: Crash Course Chemistry #36

1,483 views / 0 likes - added 9 years ago

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09:58 Popular
Nuclear Chemistry: Crash Course Chemistry #38

748 views / 0 likes - added 9 years ago

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11:18 Popular
Nuclear Chemistry Part 2: Fusion and Fission - Crash Course Chemistry #39

1,726 views / 1 likes - added 9 years ago

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09:05 Popular
Nomenclature - Crash Course Chemistry #44

1,358 views / 0 likes - added 9 years ago

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10:34 Popular
The Global Carbon Cycle - Crash Course Chemistry #46

1,698 views / 0 likes - added 9 years ago

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11:20 Popular
The Black Legend, Native Americans, and Spaniards: Crash Course US History #1

911 views / 1 likes - added 9 years ago

In which John Green kicks off Crash Course US History! Why, you may ask, are we covering US History, and not more World History, or the history of some other country, or the very specific history of your home region? Well, the reasons are many. But, like
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The Natives and the English - Crash Course US History #3

930 views / 2 likes - added 9 years ago

In which John Green teaches you about relations between the early English colonists and the native people the encountered in the New World. In short, these relations were poor. As soon as they arrived, the English were in conflict with the native people.
13:57 Popular
Where US Politics Came From: Crash Course US History #9

754 views / 0 likes - added 9 years ago

In which John Green teaches you where American politicians come from. In the beginning, soon after the US constitution was adopted, politics were pretty non-existent. George Washington was elected president with no opposition, everything was new and excit
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Women in the 19th Century: Crash Course US History #16

1,149 views / 1 likes - added 9 years ago

In which John Green finally gets around to talking about some women's history. In the 19th Century, the United States was changing rapidly, as we noted in the recent Market Revolution and Reform Movements episodes. Things were also in a state of flux for
12:47
War&Expansion: Crash Course US History #17

633 views / 0 likes - added 9 years ago

In which John Green teaches you about the Mexican-American War in the late 1840s, and the expansion of the United States into the western end of North America. In this episode of Crash Course, US territory finally reaches from the Atlantic coast to the Pa
07:25 Popular
Battles of the Civil War: Crash Course US History #19

924 views / 4 likes - added 9 years ago

Disclaimer: This is very different than the usual Crash Course US History episode. In which John Green lists a whole lot of the battles of the US Civil War in seven and a half minutes. We get a lot of requests for military history, so we offer a list of b
05:28 Popular
History of the 4th of July: Crash Course US History Special

818 views / 3 likes - added 9 years ago

In which John Green teaches you a bit about the 4th of July. In this special short Crash Course, John celebrates American Independence Day by teaching you how the holiday came to be on the 4th of July, and the many ways that Americans celebrate the day. T
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American Imperialism: Crash Course US History #28

1,375 views / 0 likes - added 9 years ago

In which John Green teaches you about Imperialism. In the late 19th century, the great powers of Europe were running around the world obtaining colonial possessions, especially in Africa and Asia. The United States, which as a young country was especially
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World War II Part 1: Crash Course US History #35

1,483 views / 6 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th
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Obamanation: Crash Course US History #47

764 views / 0 likes - added 9 years ago

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything we're doing. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th
08:50 Popular
Was Gatsby Great? The Great Gatsby Part 2: Crash Course English Literature #5

852 views / 3 likes - added 9 years ago

SPOILER ALERT: This video assumes you've read the book. In which John Green continues to explore F. Scott Fitzgerald's novel, The Great Gatsby. In this installment, John looks into the titular Gatsby's purported Greatness. Gatsby's single-minded pursuit o
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Biological Molecules - You Are What You Eat: Crash Course Biology #3

1,528 views / 0 likes - added 9 years ago

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 Biology is now available on DVD! http://dftba.com/product/1av/CrashCou
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ATP&Respiration: Crash Course Biology #7

840 views / 0 likes - added 9 years ago

In which Hank does some push ups for science and describes the "economy" of cellular respiration and the various processes whereby our bodies create energy in the form of ATP. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/Cras
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Photosynthesis: Crash Course Biology #8

1,044 views / 3 likes - added 9 years ago

Hank explains the extremely complex series of reactions whereby plants feed themselves on sunlight, carbon dioxide and water, and also create some by products we're pretty fond of as well. Crash Course Biology is now available on DVD! http://dftba.com/pro
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Heredity: Crash Course Biology #9

824 views / 0 likes - added 9 years ago

Hank and his brother John discuss heredity via the gross example of relative ear wax moistness. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook! http:/
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DNA Structure and Replication: Crash Course Biology #10

1,182 views / 0 likes - added 9 years ago

Hank introduces us to that wondrous molecule deoxyribonucleic acid - also known as DNA - and explains how it replicates itself in our cells. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series
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DNA, Hot Pockets,&The Longest Word Ever: Crash Course Biology #11

1,119 views / 0 likes - added 9 years ago

Hank imagines himself breaking into the Hot Pockets factory to steal their secret recipes and instruction manuals in order to help us understand how the processes known as DNA transcription and translation allow our cells to build proteins. Crash Course B
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Cell Meiosis: Crash Course Biology #13

986 views / 0 likes - added 9 years ago

Hank gets down to the nitty gritty about meiosis, the special type of cell division that is necessary for sexual reproduction in eukaryotic organisms. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Compl
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Natural Selection - Crash Course Biology #14

2,012 views / 0 likes - added 9 years ago

Hank guides us through the process of natural selection, the key mechanism of evolution. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook: http://www.fa
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Speciation: Of Ligers&Men - Crash Course Biology #15

1,482 views / 0 likes - added 9 years ago

Hank explains speciation - the evolutionary process by which new biological species arise - in terms of finches, ligers, mules, and dogs. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.c
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Animal Development: We're Just Tubes - Crash Course Biology #16

862 views / 0 likes - added 9 years ago

Hank discusses the process by which organisms grow and develop, maintaining that, in the end, we're all just tubes. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.com/youtubecrashcourse
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Evolutionary Development: Chicken Teeth - Crash Course Biology #17

1,061 views / 0 likes - added 9 years ago

Hank introduces us to the relatively new field of evolutionary developmental biology, which compares the developmental processes of different organisms to determine their ancestral relationship, and to discover how those processes evolved. Also fruit flie
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Population Genetics: When Darwin Met Mendel - Crash Course Biology #18

930 views / 0 likes - added 9 years ago

Hank talks about population genetics, which helps to explain the evolution of populations over time by combing the principles of Mendel and Darwin, and by means of the Hardy-Weinberg equation. Crash Course Biology is now available on DVD! http://dft.ba/-8
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Taxonomy: Life's Filing System - Crash Course Biology #19

1,231 views / 0 likes - added 9 years ago

Hank tells us the background story and explains the importance of the science of classifying living things, also known as taxonomy. Crash Course Biology is now available on DVD! http://dft.ba/-8css Like CrashCourse on Facebook: http://www.facebook.com/You
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Evolution: It's a Thing - Crash Course Biology #20

1,135 views / 0 likes - added 9 years ago

Hank gets real with us in a discussion of evolution - it's a thing, not a debate. Gene distribution changes over time, across successive generations, to give rise to diversity at every level of biological organization. Crash Course Biology is now availabl
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Simple Animals: Sponges, Jellies,&Octopuses - Crash Course Biology #22

832 views / 0 likes - added 9 years ago

Hank introduces us to the "simplest" of the animals, complexity-wise: beginning with sponges (whose very inclusion in the list as "animals" has been called into question because they are so simple) and finishing with the most complex molluscs, octopuses a
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Chordates - CrashCourse Biology #24

1,618 views / 0 likes - added 9 years ago

Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal sarcopterygian osteich
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The Nervous System - CrashCourse Biology #26

2,252 views / 1 likes - added 9 years ago

Hank begins a series of videos on organ systems with a look at the nervous system and all of the things that it is responsible for in the body. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse on Facebook: http://www.face
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Circulatory&Respiratory Systems - CrashCourse Biology #27

2,205 views / 0 likes - added 9 years ago

Hank takes us on a trip around the body - we follow the circulatory and respiratory systems as they deliver oxygen and remove carbon dioxide from cells, and help make it possible for our bodies to function. Crash Course Biology is now available on DVD! ht
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Big Guns: The Muscular System - CrashCourse Biology #31

1,767 views / 1 likes - added 9 years ago

Hank tells us the story of the complicated chemical dance that allows our skeletal muscles to contract and relax. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse: http://www.facebook.com/YouTubeCrashCourse Follow CrashCo
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Great Glands - Your Endocrine System: CrashCourse Biology #33

1,181 views / 1 likes - added 9 years ago

Hank fills us in on the endocrine system - the system of glands which produce and secrete different types of hormones directly into the bloodstream to regulate the body's growth, metabolism, and sexual development&function. Like CrashCourse on Facebook: h
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Old&Odd: Archaea, Bacteria&Protists - CrashCourse Biology #35

827 views / 1 likes - added 9 years ago

Hank veers away from human anatomy to teach us about the (mostly) single-celled organisms that make up two of the three taxonomic domains of life, and one of the four kingdoms: Archaea, Bacteria, and Protists. They are by far the most abundant organisms o
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The Lives of Nonvascular Plants: Alternation of Generations - Crash Course Biology #36

1,384 views / 0 likes - added 9 years ago

Hank introduces us to nonvascular plants - liverworts, hornworts&mosses - which have bizarre features, kooky habits, and strange sex lives. Nonvascular plants inherited their reproductive cycle from algae, but have perfected it to the point where it i
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The Plants&The Bees: Plant Reproduction - CrashCourse Biology #38

1,704 views / 0 likes - added 9 years ago

Hank gets into the dirty details about vascular plant reproduction: they use the basic alternation of generations developed by nonvascular plants 470 million years ago, but they've tricked it out so that it works a whole lot differently compared to the wa
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Fungi: Death Becomes Them - CrashCourse Biology #39

958 views / 2 likes - added 9 years ago

Death is what fungi are all about. By feasting on the deceased remains of almost all organisms on the planet, converting the organic matter back into soil from which new life will spring, they perform perhaps the most vital function in the global food web
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The Seven Years War: Crash Course World History #26

1,461 views / 6 likes - added 9 years ago

In which John teaches you about the Seven Years War, which may have lasted nine years. Or as many as 23. It was a very confusing was. The Seven Years War was a global war, fought on five continents, which is kind of a lot. John focuses on the war as it ha
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The Amazing Life and Strange Death of Captain Cook: Crash Course World History #27

802 views / 2 likes - added 9 years ago

In which John Green teaches you about the life and death of one of history's great explorers, Captain James Cook of the British Navy. He charted large swaths of the Pacific ocean, laid claim to Australia and New Zealand, and died a bizarre death in the Sa
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Samurai, Daimyo, Matthew Perry, and Nationalism: Crash Course World History #34

799 views / 1 likes - added 9 years ago

In which John Green teaches you about Nationalism. Nationalism was everywhere in the 19th century, as people all over the world carved new nation-states out of old empires. Nationalist leaders changed the way people thought of themselves and the places th
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World War II: Crash Course World History #38

1,550 views / 4 likes - added 9 years ago

Crash Course World History is now available on DVD! Visit http://dft.ba/-CCWHDVD to buy a set for your home or classroom. In which John Green teaches you about World War II, aka The Great Patriotic War, aka The Big One. So how did this war happen? And wha
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Globalization I - The Upside: Crash Course World History #41

782 views / 0 likes - added 9 years ago

In which John Green teaches you about globalization, a subject so epic, so, um, global, it requires two videos. In this video, John follows the surprisingly complex path of t-shirt as it criss-crosses the world before coming to rest on your doorstep, and
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Sesame Street: Oscar Plays the Trading Game

547 views / 2 likes - added 9 years ago

It’s time for the Trading Game with TV's terrific trader, Guy Smiley. Today's contestants are Sally Screamer and Oscar the Grouch. Oscar is hoping he'll win something cruddy and rusty, and Sally is hoping for something pretty. Watch what happens on today'
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Sesame Street: Catch Us Every Morning&Afternoon!

915 views / 1 likes - added 9 years ago

Ever look at your watch, and think "Man, I missed Sesame Street today?" Well now you have two chances to catch Sesame Street on TV! Catch all-new episodes of Sesame Street starting September 15 on PBS KIDS! Now every morning AND afternoon. Subscribe to th
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Sesame Street: Winter Sports Week on Sesame Street

1,056 views / 2 likes - added 9 years ago

Sesame Street is celebrating winter sports and all things athletic! Get ready for new episodes of Sesame Street starting February 3rd on PBS Kids. Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameStree
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Sesame Street: Gotcha! with Tom Bergeron

505 views / 0 likes - added 9 years ago

Sesame Street- a place where the days are sunny, the clouds are swept away, and the air is sweet...or is it? Sometimes things aren't always as sweet as they appear. Find out on today's episode of Gotcha! The reality show that uses hidden cameras to catch
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Sesame Street: "Arts and Crafts Playdate" Preview

532 views / 0 likes - added 9 years ago

Learn to be "art smart" with your Sesame Street friends with two full episodes of crafty fun! Click this link for the "Arts and Crafts Playdate" DVD! http://www.amazon.com/Sesame-Street-Arts-Crafts-Playdate/dp/B00CENWUYA/ Subscribe to the Sesame Street Ch
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Baseball Hall of Fame (webisode)

785 views / 0 likes - added 9 years ago

Located in historic Cooperstown, New York, the Baseball Hall of Fame and Museum showcases the history and stars of the game. Produced by Great Museums TV. For more great information, go to http://greatmuseums.org.
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Baseball Hall of Fame 10 of 10: Connecting the Generations

560 views / 0 likes - added 9 years ago

GREAT MUSEUMS' 10th webisode featuring The Natiional Baseball Hall of Fame and Museum using footage from GREAT MUSEUMS' Home Base, which aired on national public television. Each webisode explores a unique aspect of the legendary museum in Cooperstown, NY
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Baseball Hall of Fame 9 of 10: Diamonds Are Forever

637 views / 0 likes - added 9 years ago

The ninth installment of 10 webisodes featuring The National Baseball Hall of Fame, produced by Great Museums TV using footage from the shoot for the original GREAT MUSEUMS episode which aired on national public television. For more information, visit htt
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Baseball Hall of Fame 8 of 10: Swinging In The Seventies

616 views / 0 likes - added 9 years ago

The eighth installment of 10 webisodes featuring The National Baseball Hall of Fame, produced by Great Museums TV using footage from the shoot for the original GREAT MUSEUMS episode which aired on national public television. For more information, visit ht
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Baseball Hall of Fame 7 of 10: Lightning In A Bottle

588 views / 2 likes - added 9 years ago

The seventh installment of 10 webisodes featuring The National Baseball Hall of Fame, produced by Great Museums TV using footage from the shoot for the original GREAT MUSEUMS episode which aired on national public television. For more information, visit h
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Baseball Hall of Fame 6 of 10: Game of Change

639 views / 1 likes - added 9 years ago

The sixth installment of 10 webisodes featuring The National Baseball Hall of Fame, produced by Great Museums TV using footage from the shoot for the original GREAT MUSEUMS episode which aired on national public television. Each webisode explores a unique
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Baseball Hall of Fame 5 of 10: Sacred Home

596 views / 0 likes - added 9 years ago

The fifth installment of 10 webisodes featuring The National Baseball Hall of Fame, produced by Great Museums TV using footage from the shoot for the original GREAT MUSEUMS episode which aired on national public television. Each webisode explores a unique
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An Acquiring Mind: An Inside Look: The Exhibition

630 views / 0 likes - added 9 years ago

Webisode celebrating the Philippe de Montebello exhibition at The Metropolitan Museum of Art. "The Exhibition" offers exclusive interviews with Philippe de Montebello, footage from the Met's opening gala and the exhibition itself. For more information, vi
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New Orleans: A Living Museum of Music - A Webisode

778 views / 1 likes - added 9 years ago

From the Lower Ninth Ward to Congo Square, New Orleans has long been the hub of the ultimate music experience and a living museum of music. But beneath the pomp and circumstance of Mardi Gras and Jazz Fest lies an invaluable community of local musicians i
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The Metropolitan Museum of Art: Costume Institute

597 views / 0 likes - added 9 years ago

The latest installment in Great Museums TV webisode series celebrating the Philippe de Montebello exhibition at The Metropolitan Museum of Art. For more information, visit http://greatmuseums.org.
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Metropolitan Museum of Art Webisode: Textiles

632 views / 0 likes - added 9 years ago

The latest installment in the Great Museums TV webisode series celebrating the Philippe de Montebello exhibition at The Metropolitan Museum of Art. For more information, visit http://greatmuseums.org.
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Baseball Hall of Fame 4 of 10: Autumn Glory

600 views / 1 likes - added 9 years ago

The fourth installment of 10 webisodes featuring The National Baseball Hall of Fame - produced by Great Museums TV using footage from the shoot for the original GREAT MUSEUMS episode, which aired on national public television. For more information, visit
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Baseball Hall of Fame 3 of 10: Going Pro

714 views / 0 likes - added 9 years ago

The third installment of 10 webisodes featuring The National Baseball Hall of Fame - produced by Great Museums TV using footage from the shoot for the original GREAT MUSEUMS episode, which aired on national public television. For more information, visit h
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Baseball Hall of Fame 2 of 10: America's Game

820 views / 2 likes - added 9 years ago

"America's Game," the second of 10 GREAT MUSEUMS webisodes featuring The National Baseball Hall of Fame, uses footage from the shoot for the original episode "Home Base." Each webisode explores a unique aspect of the legendary museum in Cooperstown, NY wi
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Baseball Hall of Fame Webisode 1 of 10: Home Base

986 views / 0 likes - added 9 years ago

The first of 10 GREAT MUSEUMS webisodes featuring The National Baseball Hall of Fame uses footage from the shoot for the original GREAT MUSEUMS public television episode. In 1 1/2 minutes, watch never before seen footage from GREAT MUSEUMS' pilgrimage to
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An Acquiring Mind: An Inside Look, Part Two

500 views / 0 likes - added 9 years ago

Great Museums presents Part Two of its new webisode series titled: "The Metropolitan Museum of Art: The Philippe de Montebello Years: Curators Celebrate Three Decades of Acquisitions". Helen C. Evans, the Mary and Michael Jaharis Curator of Byzantine Art,
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An Acquiring Mind: An Inside Look, Part One

617 views / 0 likes - added 9 years ago

Great Museums presents Part One of its new webisode series titled: "The Metropolitan Museum of Art: The Philippe de Montebello Years: Curators Celebrate Three Decades of Acquisitions". Helen C. Evans, the Mary and Michael Jaharis Curator of Byzantine Art,
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Isabella Stewart Gardner Museum (webisode)

617 views / 0 likes - added 9 years ago

Great Museums TV presents a preview of "The Isabella Stewart Gardner Museum: Collective Vision". This episode aired on national public television stations across the country. A patron with exquisite taste and a zest for life, Isabella Stewart Gardner trav
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The National D-Day Museum (webisode)

635 views / 0 likes - added 9 years ago

Great Museums TV offers a preview of its episode featuring The National D-Day Museum, which aired on public television stations across the nation. This is not the history of World War II, but the story of what it takes to transform a nation of people into
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The National Racing Museum (webisode)

564 views / 0 likes - added 9 years ago

Great Museums TV presents a preview clip of The National Museum of Racing and Thoroughbred Hall of Fame, located in Saratoga Springs, NY. This episode aired on public television stations across the nation. Click on http://greatmuseums.org for more informa
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China: West Meets East at The Metropolitan Museum of Art - A Webisode

722 views / 0 likes - added 9 years ago

A preview of the Great Museums episode titled "China: West Meets East at the Metropolitan Museum of Art". A public television tribute to the 2008 Beijing Olympics, we learn in this clip what distinguishes Chinese art from Western art. Click on http://grea
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Great Museums TV Series: Highlights

641 views / 0 likes - added 9 years ago

A highlights reel featuring some of the most memorable episodes of Great Museums to appear on public television. A full listing of Great Museums episodes can be found at www.GreatMuseums.org.
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Great Museums of Havana: Curious about Cuba (webisode)

856 views / 0 likes - added 9 years ago

A preview of Great MuseumsTV's episode featuring the museums of Cuba, including the City of old Havana - a living museum - which aired on public television stations in December 2008. GREAT MUSEUMS OF HAVANA: CURIOUS ABOUT CUBA -- narrated by Mariel Heming
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Smithsonian National Zoo (webisode)

624 views / 0 likes - added 9 years ago

A brief look at Great Museums' episode featuring the Smithsonian National Zoo and its efforts to save endangered species of our planet, which aired on Public Television in Fall 2008. Click on http://greatmuseums.org for more information.
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"Snowman" Clip - The Story of Frozen: Making a Disney Animated Classic

1,843 views / 3 likes - added 9 years ago

Did you know "Do You Want to Build a Snowman?" almost did not make the final cut? Learn more this Tuesday at 8pm on ABC in The Story of Frozen: Making a Disney Animated Classic.Viewers will get a rare look inside Walt Disney Animation Studios and unpreced
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C is for Cookie/Rubber Ducky - Pentatonix feat. Cookie Monster

769 views / 0 likes - added 9 years ago

Check out our performance of the number medley on Sesame Street: http://bit.ly/1d46q4k Watch the full episode when it airs on TV: Feb 7, 2014 on PBS Kids ORDER PTXMAS DELUXE EDITION - http://smarturl.it/PTXmas?IQid=yt ORDER PTX VOL. 2 - http://smarturl.it
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Chocolate Chip Cookies | How It's Made

970 views / 0 likes - added 9 years ago

It's one of America's favorite foods. Learn how chocolate chip cookies go from industrial mixer to dessert platters across the U.S. | For more How It's Made, visit http://science.discovery.com/tv-shows/how-its-made/#mkcpgn=ytsci1 Subscribe to Science Chan
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How Are NFL Footballs Made?

1,094 views / 5 likes - added 9 years ago

Take a look inside the process of making footballs for the NFL! | For more, visit http://www.sciencechannel.com/tv-shows/how-its-made/#mkcpgn=ytsci1 Watch full episodes: http://bit.ly/HowItsMadeFullEps Subscribe to Science Channel: http://www.youtube.com/
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Race Car Shape | How It's Made

929 views / 0 likes - added 9 years ago

Catch all-new episodes of HOW IT'S MADE Thursdays 9/8c on Science. | http://www.sciencechannel.com/tv-shows/how-its-made
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Assembling a Race Car Frame | How It's Made

749 views / 0 likes - added 9 years ago

Catch all-new episodes of HOW IT'S MADE Thursdays 9/8c on Science. | http://www.sciencechannel.com/tv-shows/how-its-made
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Machine-Made Lace | How It's Made

853 views / 0 likes - added 9 years ago

Sit back and enjoy the factory fun with this How It's Made: Lace music video. | For more How It's Made, visit http://science.discovery.com/tv-shows/how-its-made/#mkcpgn=ytsci1 Subscribe to Science Channel! | http://www.youtube.com/subscription_center?add_
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Is There Life on Enceladus?

719 views / 0 likes - added 9 years ago

Saturn's tiny, frozen moon Enceladus could hold the secrets to extraterrestrial life. | For more STRIP THE COSMOS, visit http://www.sciencechannel.com/tv-shows/strip-the-cosmos/#mkcpgn=ytsci1 Subscribe to Science Channel! | http://www.youtube.com/subscrip
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Inside Monster Martian Volcanoes

808 views / 3 likes - added 9 years ago

Mars is home to Olympus Mons, the largest volcano in the solar system, which covers an area the size of Arizona. | For more STRIP THE COSMOS, visit http://www.sciencechannel.com/tv-shows/strip-the-cosmos/#mkcpgn=ytsci1 Subscribe to Science Channel! | http
03:54 Popular
Recreating Asteroid Strike That Killed Dinosaurs

756 views / 0 likes - added 9 years ago

The dinosaurs died off after a massive asteroid strike with a billion times more energy than the atomic bomb dropped on Hiroshima. A team at NASA studies the impact to learn more. | For more STRIP THE COSMOS, visit http://www.sciencechannel.com/tv-shows/s
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60-Foot-Wide Asteroid Hurtles Toward Earth

744 views / 0 likes - added 9 years ago

In February 2013, a stunning sight in the sky over Russia made international headlines. The light of an asteroid hurtling toward Earth was brighter than the sun. | For more STRIP THE COSMOS, visit http://www.sciencechannel.com/tv-shows/strip-the-cosmos/#m
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Do Transplanted Organs Carry Memories?

620 views / 0 likes - added 9 years ago

Hundreds of organ recipients have reported unique experiences after their transplant. | For more, visit http://science.discovery.com/tv-shows/the-unexplained-files/#mkcpgn=ytsci1 Subscribe to Science Channel! | http://www.youtube.com/subscription_center?a
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The Lost Giants of Georgia

634 views / 0 likes - added 9 years ago

A discovery of bones belonging to seemingly giant people raise questions. Research looks to the real giants that live among us. | For more, visit http://science.discovery.com/tv-shows/the-unexplained-files/#mkcpgn=ytsci1 Subscribe to Science Channel! | ht
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Star Wars: The Force Awakens Official Teaser #2

1,357 views / 7 likes - added 9 years ago

Get your first look at the new Star Wars: The Force Awakens teaser #2!Lucasfilm and visionary director J.J. Abrams join forces to take you back again to a galaxy far, far away as “Star Wars” returns to the big screen with “Star Wars: The
01:45 Popular
How Do You Turn A Human Into A Dolphin?

875 views / 0 likes - added 9 years ago

The Flyboard is an incredible watercraft that allows riders to perform impressive acrobatics above and below the water's surface. How does it work? | http://science.discovery.com/tv-shows/outrageous-acts-of-science/#mkcpgn=ytsci1 Catch OUTRAGEOUS ACTS OF
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Superbugs: The Empire Strikes Bacteria

682 views / 0 likes - added 9 years ago

Check out GROSS SCIENCE: http://bit.ly/1DH5zbv Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart↓ More info and sources below ↓ Are we entering the post-antibiotic era? Antibiotic-resistant bacteria are on the rise, with millions of infections re
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The Recipe For Life…

606 views / 0 likes - added 9 years ago

We're cookin' in the primordial kitchen! Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart↓ More info and sources below ↓ If the human body could be distilled down into one molecule, what would our chemical formula be? And WHY is it that way? Is
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05:06 Popular
%$?# Allergies!

895 views / 0 likes - added 9 years ago

It’s the season for sneezin’! Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Springtime means the arrival of green grass, bright flowers, and buzzing bees. But for many of us, it’s also about sneezing, watery re
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How Many Stars Are There?

1,009 views / 2 likes - added 9 years ago

Counting stars from the shore of the cosmic ocean… Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ LIKE THE SHIRT I'M WEARING? It's glow in the dark! You can get it here (along with space undies and other good st
03:12 Popular
What Color Is The Universe?

1,596 views / 2 likes - added 9 years ago

Hint: It’s not black Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ When you stare up at the night sky, you might think that the universe is really black, but that’s just because our eyes aren’t sensitive enough
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Attack Of The Zombie Parasites!

824 views / 3 likes - added 9 years ago

Did someone say BRAAAAAINS…? Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Shows like The Walking Dead are full of hungry, mindless, surprisingly fleet-footed armies of brain-eating zombies. Could they actually
04:47 Popular
Why Does February Only Have 28 Days?

944 views / 4 likes - added 9 years ago

It's not the size of the month that matters… Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Why does February only get 28 days when all the other months get 30 or 31? The answer is part superstition, part politi
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Why Vaccines Work

910 views / 1 likes - added 9 years ago

A dose of reality about vaccines… Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ As more and more parents are choosing not to vaccinate their children or are vaccinating them later, diseases like measles are mak
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How Many Heartbeats Do We Get?

1,398 views / 0 likes - added 9 years ago

Science really gets my heart going… Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart
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04:05
What Is Déjà Vu?!

537 views / 0 likes - added 9 years ago

I feel like I’ve seen this video before… Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/okaytobesmart http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobe
05:13 Popular
5 Weird Involuntary Behaviors Explained!

761 views / 0 likes - added 9 years ago

Yawns, hiccups, twitchy eyes (and more) explained! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on In
05:02 Popular
There's No Such Thing As Cold

746 views / 1 likes - added 9 years ago

If cold isn’t real, then how can I feel it? Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram
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04:34 Popular
How Many Smells Can You Smell?

811 views / 0 likes - added 9 years ago

How do we smell? Great! Thanks for asking! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram:
06:34 Popular
Does My Dog Know What I'm Thinking?

858 views / 0 likes - added 9 years ago

Head to BrainCraft for more doggy science! http://youtu.be/OBy3idLwwYM Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesm
07:34 Popular
Why People Don't Believe In Climate Science

793 views / 0 likes - added 9 years ago

Watch Part 1:“The Facts” http://youtu.be/ffjIyms1BX4 Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on
06:20
Climate Science: What You Need To Know

643 views / 1 likes - added 9 years ago

Learn the basic science of climate change in 24 easy steps Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Foll
04:32 Popular
Where Do Birds Go In Winter?

895 views / 1 likes - added 9 years ago

And where do they keep their suitcases? Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: ht
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09:12 Popular
The Sixth Extinction

801 views / 2 likes - added 9 years ago

This time, we’re the asteroid. Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://inst
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05:31
Why Are Some People Left-Handed?

679 views / 0 likes - added 9 years ago

The science of their sinister ways… Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http:/
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14:48 Popular
How To Draw A Roadrunner

971 views / 0 likes - added 9 years ago

Follow along with us and learn how to draw a roadrunner! Earth day is also coming up, check out how to draw the earth https://www.youtube.com/watch?v=OTQ_RLo_NXw Learn more about roadrunners: http://en.wikipedia.org/wiki/Geococcyx Learn more about Looney
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03:42
How To See Time Travel!!!

577 views / 1 likes - added 9 years ago

Behold the COSMOTRON 5000!!! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http://instag
04:52 Popular
Why Does The Earth Have Layers?

1,253 views / 3 likes - added 9 years ago

…or why we live on an onion made of magma. Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram:
06:29 Popular
Why Do Clouds Stay Up?

974 views / 2 likes - added 9 years ago

There’s nothing wrong with having your head in the clouds. Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Foll
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03:59 Popular
A Slice Of Pizza Science!

1,162 views / 1 likes - added 9 years ago

How does math keep a folded slice from drooping? And what does pizza have to do with the speed of light?↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com How a 19th Century
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05:21 Popular
Bats: Guardians Of The Night

956 views / 9 likes - added 9 years ago

To see all the great bat action, please watch in HD!! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Visit Bat
06:03
The Physics Of Space Battles

670 views / 0 likes - added 9 years ago

How scientifically accurate is your favorite sci-fi space battle? Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.c
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05:45 Popular
What's The Deadliest Animal In The World?

838 views / 2 likes - added 9 years ago

Besides humans, of course. Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Gates Foundation info on the world’s
03:11 Popular
Where Does The Smell Of Rain Come From?

891 views / 0 likes - added 9 years ago

I smell a science storm a-comin'!! Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com References: “Nature of Argil
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00:52 Popular
Sesame Street:“Elmo The Musical – Volume 2” Preview

813 views / 0 likes - added 9 years ago

It’s volume two of Elmo’s math-filled musicals, packed with 7 all-new to DVD episodes! With over two hours of music, adventure, math, friendship and fun, little learners will love to sing along! Includes a bonus full-length video of “Play With Me Sesame:
07:53
Presidential Powers 2: Crash Course Government And Politics

660 views / 0 likes - added 9 years ago

This week Craig continues our conversation on presidential powers by looking at those NOT found in the Constitution - implied or inherent powers. We’ll talk about how the president uses his or her power to negotiate executive agreements, recommend legisla
01:50 Popular
Star Wars: Episode VII - The Force Awakens Official Teaser Trailer #2 (2015) - Star Wars Movie HD

1,578 views / 8 likes - added 9 years ago

Subscribe to TRAILERS: http://bit.ly/sxaw6h Subscribe to COMING SOON: http://bit.ly/H2vZUn Like us on FACEBOOK: http://goo.gl/dHs73 Follow us on TWITTER: http://bit.ly/1ghOWmt Star Wars: Episode VII - The Force Awakens Official Teaser Trailer #2 (2015) -
04:51 Popular
What If There Were No Sharks?

2,048 views / 14 likes - added 9 years ago

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Follow this link to more shark science videos by your favorite YouTubers!! http://bit.ly/1sugd0z↓ More info and sources below ↓ Follow on Twitter:
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06:10 Popular
The Oldest Living Things In The World

721 views / 0 likes - added 9 years ago

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow
02:02 Popular
The Sun Is A Magnet!

734 views / 0 likes - added 9 years ago

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Sunspots, solar flares, coronal mass ejections, OH MY! Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub↓ More info and sources below ↓ F
04:46
How Your Body Knows Left From Right

646 views / 0 likes - added 9 years ago

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Why are our bodies so symmetrical, but our guts aren't?↓ More info and sources below ↓ Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub
04:14 Popular
You Are An Upside-Down Lobster

764 views / 1 likes - added 9 years ago

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Here's why you aren't built like a lobster. Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub↓ More info and sources below ↓ Follow on Tw
04:25 Popular
Why Your Brain Is In Your Head

784 views / 0 likes - added 9 years ago

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Check out BrainCraft: http://youtu.be/aucscX191vQ Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub↓ More info and sources below ↓ Follow
05:54
The Delicious Science Of CHEESE!

556 views / 0 likes - added 9 years ago

Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- There's science in cheese? You'd cheddar believe it. Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub Follow on Twitter: http://twitter.
01:39 Popular
Car Made Entirely Out Of Legos

1,671 views / 4 likes - added 9 years ago

More than half a million pieces weighing over 1,100 lbs went into the construction of this working vehicle made almost entirely of Legos. How did Melbourne entrepreneur Steve Sammartino and a young Romanian genius, Raul Oaida, create this awesome, air-pow
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01:32 Popular
An Incredible 6-Year-Old Yo-Yo Master

739 views / 0 likes - added 9 years ago

This 6-year-old demonstrates some serious yo-yo handling skills. How does he do it? | http://science.discovery.com/tv-shows/outrageous-acts-of-science/#mkcpgn=ytsci1 Catch Outrageous Acts of Science Saturdays at 9/8c on Science! Subscribe to Science Chann

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