Rainim Purba first heard the rumor in 1996. Back then, in her mid-30s, villagers were saying a zinc mining company was going ...

National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Computational models are mathematical models used to numerically study the behaviour of complex systems by means of a computer simulation. A computational model can be used to make predictions of the ...

Behavioural methods are methods used to study the neural, molecular, genetic or physiological mechanisms that underlie behaviour in humans or other animals (the field of behavioural neuroscience), or ...

US chemist Alice Ball was born in Seattle, Washington, on 24 July 1892. She came from a middle-class African-American family of photographers; her grandfather, James Presley Ball, was one of the first ...