Crash Course
Using Wikipedia: Crash Course Navigating Digital Information #5
Let's talk about Wikipedia. Wikipedia is often maligned by teachers and twitter trolls alike as an unreliable source. And yes, it does sometimes have major errors and omissions, but Wikipedia is also the Internet's largest general...
TED Talks
James B. Glattfelder: Who controls the world?
James Glattfelder studies complexity: how an interconnected system -- say, a swarm of birds -- is more than the sum of its parts. And complexity theory, it turns out, can reveal a lot about how the world economy works. Glattfelder shares...
Crash Course
Max Weber & Modernity: Crash Course Sociology
This week we are wrapping up our overview of sociology’s core frameworks and founding theorists with a look Max Weber and his understanding of the modern world. We’ll explore rationalization and the transition from traditional to modern...
TED Talks
TED: US politics isn't broken. It's fixed | Katherine M. Gehl
The "broken" US political system is actually working exactly as designed, says business leader and activist Katherine Gehl. Examining the system through a nonpartisan lens, she makes the case for voting innovations, already implemented...
SciShow
There's a Loophole in One of the Most Important Laws of Physics
The laws of thermodynamics are cornerstones of physics - but one of them is more breakable than it appears.
SciShow
What Do 'Natural' and 'Artificial' Flavors Really Mean?
What does it actually mean when your snack cake has "naturally flavored" on the package?
TED Talks
TED: The new age of corporate monopolies | Margrethe Vestager
Margrethe Vestager wants to keep european markets competitive -- which is why, on behalf of the eu, she's fined Google $2.8 billion for breaching antitrust rules, asked Apple for $15.3 billion in back taxes and investigated a range of...
TED-Ed
The unexpected math of origami | Evan Zodl
Origami, which literally translates to "folding paper," is a Japanese practice dating back to at least the 17th century. In origami, a single, traditionally square sheet of paper can be transformed into almost any shape, purely by...
Crash Course
Redox Reactions: Crash Course Chemistry
All the magic that we know is in the transfer of electrons. Reduction (gaining electrons) and oxidation (the loss of electrons) combine to form Redox chemistry, which contains the majority of chemical reactions. As electrons jump from...
SciShow Kids
Why Is Fire Hot?
Whether you're out camping, cooking, or snuggled up in front of your fireplace, you know that fire is hot! But why? Join Jessi and Squeaks to learn how fires turn wood or other fuel into useful heat!
PBS
A Hierarchy of Infinities
There are different sizes of infinity. It turns out that some are larger than others. Mathematician Kelsey Houston-Edwards breaks down what these different sizes are and where they belong in The Hierarchy of Infinities.
TED-Ed
TED-ED: How to prove a mathematical theory - Scott Kennedy
Euclid of Alexandria revolutionized the way that mathematics is written, presented or thought about, and introduced the concept of mathematical proofs. Discover what it takes to move from a loose theory or idea to a universally...
TED Talks
TED: My secret to creating real magic | Christina Tosi
In an infectiously joyous talk, Milk Bar founder Christina Tosi shares the sugary jolt of her first food memory and behind-the-scenes stories of her bakery's famously inventive cakes, cookies and treats. This talk may make you hungry --...
TED Talks
TED: The case for a decentralized internet | Tamas Kocsis
Who controls the internet? Increasingly, the answer is large corporations and governments -- a trend that's threatening digital privacy and access to information online, says web developer Tamas Kocsis. In this informative talk, Kocsis...
TED-Ed
TED-Ed: How to build a fictional world - Kate Messner
Why is J.R.R. Tolkien's Lord of the Rings trilogy so compelling? How about The Matrix or Harry Potter? What makes these disparate worlds come alive are clear, consistent rules for how people, societies -- and even the laws of physics --...
TED-Ed
TED-Ed: What do all languages have in common? | Cameron Morin
Language is endlessly variable. Each of us can come up with an infinite number of sentences in our native language, and we're able to do so from an early age— almost as soon as we start to communicate in sentences. How is this possible?...
TED-Ed
TED-Ed: Does grammar matter? - Andreea S. Calude
It can be hard sometimes, when speaking, to remember all of the grammatical rules that guide us when we're writing. When is it right to say the dog and mec and when should it be the dog and I? Does it even matter? Andreea S. Calude dives...
Crash Course
Netflix & Chill: Crash Course Philosophy
Last week we talked about language and meaning. Today, Hank explores some of the things that complicate meaning and how we get around that. We’ll explain conversational implicature, the cooperative principle, and the four main maxims of...
SciShow
Learning About Lightning from Superbolts
If you ask someone to picture a thunderstorm, chances are they will have no problem slipping into a memory of dark clouds and bright flashes screaming out from them. But, incredibly, they’re probably picturing the tame version of...
Crash Course
The Basics of Organic Nomenclature - Crash Course Organic Chemistry
Language is complicated, especially in organic chemistry. This episode of Crash Course Organic Chemistry is all about nomenclature. We'll dive into IUPAC systematic naming of organic molecules, and get to practice with the help of three...
Crash Course
Contractarianism: Crash Course Philosophy
Today we explore the penultimate ethical theory in this unit: contractarianism. Hank explains Hobbes’ state of nature, and implicit and explicit contracts, as well as the Prisoner’s Dilemma, and the benefits, and costs, of violating...
3Blue1Brown
Why “probability of 0” does not mean “impossible” | Probabilities of probabilities, part 2
Introduction to probability density functions.
TED-Ed
TED-Ed: Is math discovered or invented? - Jeff Dekofsky
Would mathematics exist if people didn't? Did we create mathematical concepts to help us understand the world around us, or is math the native language of the universe itself? Jeff Dekofsky traces some famous arguments in this ancient...
Crash Course
Symbols, Values & Norms: Crash Course Sociology
What exactly is culture? This week we’re going to try to answer that, and explain the difference between material and non-material culture. We’ll look at three things that make up culture: symbols, values and beliefs, and norms. We’ll...