Amazing Valley

In a previously unreleased, nearly 20-year-old interview, Steve Jobs made a prescient statement about the current state of the company he made so famous. "All the work that I have done in my life will be obsolete by the time I'm 50," said Jobs, who died at 56 and introduced the iPhone just weeks before his 52nd birthday (at which point the Apple 1 was very much obsolete), in a short clip (below) provided by the Silicon Valley Historical Association to promote a new, 60-minute documentary. "This is a field where one does not write a Principia which holds up for 200 years. ...

Arrays of sensors stretching across more than 1,500 miles in Africa are now probing the giant crack in the Earth located there — a fissure linked with human evolution — to discover why and how continents get ripped apart.