If you’ve ever flown across the world, you’ll know one thing for sure: it’s a very, very long way. It’s not the biggest planet in our solar system by a long way, but in terms of the perspective of a ...

Introduction If you wanted to measure the circumference of Earth, how long would your tape measure have to be? Would you need to walk the whole way around the world to find the answer? Do you think ...

A common refrain for students in a math class is “when are we ever gonna need this?” Real World Math is a site that tries to put math skills into real-world situations to help them feel more useful to ...

Mathematicians say that they have solved a major, decades-old problem in geometry: how to reconstruct the inner structure of a mystery object ‘X’ from knowing only how fast waves travel between any ...