TED-Ed
TED-Ed: Can you solve the virus riddle? - Lisa Winer
Your research team has found a prehistoric virus preserved in the permafrost and isolated it for study. After a late night working, you're just closing up the lab when a sudden earthquake hits and breaks all the sample vials. Will you be...
TED-Ed
TED-ED: The origin of countless conspiracy theories - PatrickJMT
Why can we find geometric shapes in the night sky? How can we know that at least two people in London have exactly the same number of hairs on their head? And why can patterns be found in just about any text - even Vanilla Ice lyrics?...
3Blue1Brown
Dot products and duality: Essence of Linear Algebra - Part 9 of 15
What is the dot product? What does it represent? Why does it have the formula that it does? All this is explained visually.
TED-Ed
TED-Ed: What's the fastest way to alphabetize your bookshelf? - Chand John
You work at the college library. You're in the middle of a quiet afternoon when suddenly, a shipment of 1,280 books arrives. The books are in a straight line, but they're all out of order, and the automatic sorting system is broken. How...
TED-Ed
TED-Ed: How high can you count on your fingers? (Spoiler: much higher than 10) - James Tanton
How high can you count on your fingers? It seems like a question with an obvious answer. After all, most of us have ten fingers -- or to be more precise, eight fingers and two thumbs. This gives us a total of ten digits on our two hands,...
3Blue1Brown
The DP-3T algorithm for contact tracing (via Nicky Case)
An overview of a simplified version of the DP-3T algorithm for privacy-first contact-tracing
SciShow
Game Theory: The Science of Decision-Making
With up to ten years in prison at stake, will Wanda rat Fred out? Game theory is looking at human interactions through the lens of mathematics.
PBS
Can Video Games Become the Next Spectator Sport?
As our South Korean friends can confirm, video games can most definitely be a spectator sport. But will they ever catch on in a huge way in the good ol' U.S. of A?
TED-Ed
TED-Ed: How to detect a supernova - Samantha Kuula
Just now, somewhere in the universe, a star exploded. In fact, a supernova occurs every second or so in the observable universe. Yet, we’ve never actually been able to watch a supernova in its first violent moments. Is early detection...
TED Talks
Terry Moore: Why is 'x' the unknown?
Why is 'x' the symbol for an unknown? In this short and funny talk, Terry Moore gives the surprising answer.
TED Talks
Arthur Benjamin: Teach statistics before calculus!
Someone always asks the math teacher, "Am I going to use calculus in real life?" And for most of us, says Arthur Benjamin, the answer is no. He offers a bold proposal on how to make math education relevant in the digital age.
TED-Ed
TED-ED: Can you solve the counterfeit coin riddle? - Jennifer Lu
You're the realm's greatest mathematician, but ever since you criticized the Emperor's tax laws, you've been locked in the dungeon. Luckily for you, one of the Emperor's governors has been convicted of paying his taxes with a counterfeit...
3Blue1Brown
Circle Division Solution: Circle Division - Part 2 of 2
Moser's circle problem, and its solution.
3Blue1Brown
Understanding e to the i pi: Differential Equations - Part 5 of 5
A quick explanation of e^(pi i) in terms of motion and differential equations
PBS
Singularities Explained
Mathematician Kelsey Houston-Edwards explains exactly what singularities are and how they exist right under our noses.
TED-Ed
TED-Ed: Can you solve the troll’s paradox riddle? - Dan Finkel
You and your brother have discovered another realm and set off exploring the new wonderful world. Along the way, you see a troll catching creatures in an enormous net. The troll agrees to release the creatures if you can come up with a...
TED-Ed
TED-Ed: Can you solve the rebel supplies riddle? - Alex Gendler
You're overseeing the delivery of supplies to a rebel base in the heart of enemy territory. To get past customs, all packages must follow this rule: if a box is marked with an even number on the bottom, it must be sealed with a red top....
TED-Ed
TED-ED: Should we get rid of standardized testing? - Arlo Kempf
Although standardized testing is a particularly hot topic in education right now, this approach to measurement has been in use for two millennia. And while the results of standardized testing can help us understand some things, they can...
3Blue1Brown
What is backpropagation really doing? | Deep learning, chapter 3
An overview of backpropagation, the algorithm behind how neural networks learn.
3Blue1Brown
Derivative formulas through geometry | Chapter 3, Essence of calculus
Introduction to the derivatives of polynomial terms and trigonometric functions thought about geometrically and intuitively. The goal is for these formulas to feel like something the student could have discovered, rather than something...
3Blue1Brown
Why does this product equal pi/2? A new proof of the Wallis formula for pi.
A new and more circularly proof of a famous infinite product for pi.
PBS
Proving Brouwer's Fixed Point Theorem
There is a proof for Brouwer's Fixed Point Theorem that uses a bridge - or portal - between geometry and algebra.
3Blue1Brown
Higher order derivatives: Essence of Calculus - Part 10 of 11
What is the second derivative? Third derivative? How do you think about these?