These days I was watching a lot of maths-related videos and I thought it would be a good idea to make a small list of videos by TED-ed. I have chosen just the animations, because they are more funny and interesting to watch; also I find that these videos can be used to start or finish a maths-class and engage the children more than normal. I believe that having a maths-related playlist is always a good idea, so let’s get started:
1. The mathematical secrets of Pascal’s triangle – Pascal’s triangle, which at first may just look like a neatly arranged stack of numbers, is actually a mathematical treasure trove. But what about it has so intrigued mathematicians the world over?
2. The math behind Michael Jordan’s legendary hang time – Michael Jordan’s legendary slam dunk from the free throw line has been calculated at 0.92 seconds of pure hang time. But how many seconds could Jordan have gotten were he doing the same jump on Mars? Or Jupiter?
3. The complex geometry of Islamic design – In Islamic culture, geometric design is everywhere: you can find it in mosques, madrasas, palaces, and private homes. And despite the remarkable complexity of these designs, they can be created with just a compass to draw circles and a ruler to make lines within them.
4. The last banana: A thought experiment in probability – Imagine a game played with two players and two dice: if the biggest number rolled is one, two, three, or four, player 1 wins. If the biggest number rolled is five or six, player 2 wins. Who has the best probability of winning the game?
5. The mighty mathematics of the lever – Archimedes once said “Give me a place to stand, and I shall move the Earth.” While the idea of a person moving such a huge mass on their own might sound impossible, chances are you’ve seen this idea in action at your local playground.
6. The unexpected math behind Van Gogh’s “Starry Night” – Physicist Werner Heisenberg said, “When I meet God, I am going to ask him two questions: why relativity? And why turbulence? I really believe he will have an answer for the first.” As difficult as turbulence is to understand mathematically, we can use art to depict the way it looks.
7. Music and math: The genius of Beethoven – How is it that Beethoven, who is celebrated as one of the most significant composers of all time, wrote many of his most beloved songs while going deaf? The answer lies in the math behind his music.
8. Why do honeybees love hexagons? – Honeybees are some of nature’s finest mathematicians. Not only can they calculate angles and comprehend the roundness of the earth, these smart insects build and live in one of the most mathematically efficient architectural designs around: the beehive.
9. The infinite Hotel Paradox – The Infinite Hotel, a thought experiment created by German mathematician David Hilbert, is a hotel with an infinite number of rooms. Easy to comprehend, right? Wrong. What if it’s completely booked but one person wants to check in? What about 40? Or an infinitely full bus of people?
10. The infinite life of pi – The ratio of a circle’s circumference to its diameter is always the same: 3.14159… and on and on (literally!) forever. This irrational number, pi, has an infinite number of digits, so we’ll never figure out its exact value no matter how close we seem to get.
These are the videos I enjoy the most. If you want to watch more, you can check the playlist Math&Ted-ed. Which one is your favorite video? What other videos do you like to watch?
Thank you for your help and support. You can find me on Facebook, Tumblr, Google+, Twitter, Instagram and Lettrs, I will try to post there as often as possible. Don’t forget that maths is everywhere! Enjoy!