What they are: A logarithm is the exponent you raise a base to in order to get a number, acting as the inverse of exponentiation. Why they matter: They simplify multiplication, division, and roots ...

Centenary celebrations: Attenborough turned 100 on May 8, marked by a Royal Albert Hall celebration and wide-ranging coverage revisiting his career and conservation work. Longevity insights: Experts ...

There are an astounding number of travel books out there. How to choose the best of the best? You can start by asking the experts. Back in 2007, Traveler enlisted a literary all-star jury that ...