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11,686,736 results
17.3M subscribers
Minerals—they're in our homes and our smartphones. But can we meet the demand for them without hurting the places and ...
80,802 views
4d ago
Is the Electoral College broken? More and more people in the U.S. are voicing dissatisfaction with the way we elect presidents.
115,557 views
6d ago
You've probably heard about fossil fuels before – the good, the bad, and the super, super ugly. But what you might not know is ...
91,500 views
11d ago
Why don't more people in the U.S. vote? In 2024, 90 million U.S. voters made a choice on election day…the choice not to vote.
131,437 views
13d ago
Where do campaigns get all their money, and where does it go? In this episode of Crash Course Big Questions on U.S. ...
121,206 views
2w ago
How worried should we be about giant asteroid impacts? In this episode of Crash Course Geology, we'll learn how to tell an ...
103,549 views
3w ago
Does the U.S. need a competitive third party? And would anyone even vote for one? In this episode of Crash Course Big ...
154,181 views
What can gouge out lakes, carve through mountains, and make weird marks in the ground that look /exactly/ like yeti claws? Well ...
101,507 views
1mo ago
How did U.S. politics get so divisive? In this episode of Crash Course Big Questions: U.S. Government and Politics, we'll pull back ...
148,955 views
In Crash Course Marathons, we're revisiting the series you love, in long-form videos that cover entire subjects from back to front.
224,709 views
In this episode of Crash Course, Hank introduces you to the complex history and terminology of Anatomy & Physiology. Pssst... we ...
13,126,282 views
11y ago
Tuberculosis is often thought of as an old-timey disease, but in reality, it continues to kill over a million and a half people per year, ...
4,058,796 views
2y ago
I'm sure you've heard of Pavlov's Bell, but what was Ivan Pavlov up to, exactly? And how are our brains trained? And what is a ...
4,504,908 views
12y ago
Nachos are delicious. And versatile because today they're also going to help us learn a thing or two about your digestive system.
6,147,957 views
In this episode of Crash Course Psychology, we get to meet the brain. Hank talks us through the Central Nervous System, the ...
6,976,273 views
Today Hank kicks off our look around MISSION CONTROL: the nervous system. Pssst... we made flashcards to help you review ...
11,203,552 views
So, it turns out we have an easy time reading emotions in facial expressions, but emotions can straight up kill us! In this episode of ...
3,609,281 views
Next stop in our tour of your sensory systems? VISION. With a little help from an optical illusion, we take a look inside your eyes to ...
4,555,887 views
Our final episodes of Anatomy & Physiology explore the way your body keeps all that complex, intricate stuff alive and healthy ...
7,147,572 views
10y ago
Today Hank talks about your central nervous system. In this episode, we'll explore how your brain develops and how important ...
5,507,359 views
BAHHHHHH! Did I scare you? What exactly happens when we get scared? How does our brain make our body react? Just what ...
6,580,226 views
Why do we sleep? Well... that's a tricky question. More easily answered is the question, "How do we sleep?" In this episode of ...
3,885,794 views
So, what do Batman and J.R.R. Tolkien have in common? Post Traumatic Stress Disorder. It used to be called "Shellshock" and it ...
3,481,681 views
What exactly are Personality Disorders? How can they be diagnosed? Can we prevent some of them? In this episode of Crash ...
5,553,349 views
Crash Course Anatomy & Physiology continues the journey through sensory systems with a look at how your sense of hearing ...
4,033,337 views
In this episode of Crash Course Psychology, Hank talks about OCD and anxiety disorders in the hope we'll understand what ...
6,923,530 views
Not sleeping for days on end. Long periods of euphoria. Racing thoughts. Grandiose ideas. Mania. Depression. All of these are ...
5,331,286 views
Can a paper bag really help you when you are hyperventilating? It turns out that it can. In part 2 of our look at your respiratory ...
3,110,054 views
Hank resists the urge to devour a slice of pizza so that he can walk you through the way we experience our major special senses.
2,967,016 views
