Mathematics is all around us. It can be seen in every aspect of our daily lives, from technology to art, engineering, finance, and even sports. This series explains mathematics, from its origins to its surprising modern uses. Even the math-averse will have their interest piqued.
Curated by: TED-Ed (63 videos)
View full lesson: http://ed.ted.com/lessons/why-are-manhole-covers-round-marc-chamberland Why are most manhole covers round? Sure it makes them easy to roll, and slide into place in any alignment. But there’s another, more compelling reason, involving a peculiar geometric property of circles and other shapes. Marc Chamberland explains curves of constant width and Barbier’s theorem. Lesson by Marc Chamberland, animation by Pew36 Animation Studios.