The Giant's Causeway is a rock formation that is so otherworldly that it seems like it was made by supernatural beings. But these incredible hexagonal columns of rock aren't the result of giant masons. They formed through a quirk of...

What is a change of basis, and how do you do it?

What is a change of basis, and how do you do it?

The cross product is a way to multiple to vectors in 3d. This video shows how to visualize what it means.

How do you think about a non-square matrix as a transformation?

The cross product is a way to multiple to vectors in 3d. This video shows how to visualize what it means.

This is episode 7 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and...

What did the world learn from the devastating earthquake that struck Haiti in 2010? That shoddy buildings and bad planning can make a terrible situation even worse. "Haiti was not a natural disaster," says TED Fellow Peter Haas. "It was...

What do fans of atmospheric post-punk music have in common with ancient barbarians? Not much ... so why are both known as _goths"? Is it a weird coincidence _ or is there a deeper connection stretching across the centuries? Dan Adams...

How do you think about a non-square matrix as a transformation?

Henry Markram says the mysteries of the mind can be solved -- soon. Mental illness, memory, perception: they're made of neurons and electric signals, and he plans to find them with a supercomputer that models all the brain's...

What is a change of basis, and how do you do it?

How do you think about a non-square matrix as a transformation?

Current medical treatment boils down to six words: Have disease, take pill, kill something. But physician Siddhartha Mukherjee points to a future of medicine that will transform the way we heal.

When you think of matrices as transforming space, rather than as grids of numbers, so much of linear algebra starts to make sense.

Where did all the lumps and bumps on buildings go? When did city architecture become so ... dull? Here to talk about why cities need inspiring architecture, designer Thomas Heatherwick offers a path out of the doldrums of urban monotony...

When you're working on a problem with lots of numbers, as in economics, cryptography or 3D graphics, it helps to organize those numbers into a grid, or matrix. Bill Shillito shows us how to work with matrices, with tips for adding,...

This video is about cutting, taping, and rearranging the periodic table into the Left Step form, the Mendeleev's flower form, the cake form, the wide form, the standard form, and so on. A great holiday...

In this video, you will learn how to create a category model.

Howcast - Learn about the offset function in this Excel Howcast tutorial with expert Shir Moscovitz.

Howcast - Multiplying matrices is painless when you understand the method described here.

Howcast - Chess960, also known as Fischer Random Chess, is a game variant of chess created by world chess champion Bobby Fischer. Unlike standard chess, the initial chess board setup for Chess960 is generated at random.

Drinks can be fattening, unless you stick with this skinny bitch.

Brescia, near northern Italy's Lake Garda, is a historic town with notable landmarks like Santi Nazaro e Celso, Santa Maria dei Miracoli, and the early Gothic Franciscan church. Rich in Roman and medieval history, the city's highlights...