The original version of this story appeared in Quanta Magazine. Calculus is a powerful mathematical tool. But for hundreds of years after its invention in the 17th century, it stood on a shaky ...

Troubled ties with the West will further raise the region’s value in Beijing’s calculus. Southern Chinese provinces leverage their location to ride on Beijing’s grand strategies such as the ...

One sign that your mouth isn't as healthy as it could be is if a calculus bridge forms. To learn more, we consulted dentists for their expert insights. To understand calculus bridges, it helps to ...