MIT develops ketchup bottle that lets you use every drop

The research institution that brought you the fax machine and GPS has come up with another potentially world-changing invention: a bottle coating so slick that every last bit of ketchup slides out quickly and easily.

Walking Shoes That Spy on Grandma

Two small U.S. companies recently launched a line of footwear that uses a GPS device embedded in the heel to track seniors

How the transit of Venus opened the planet to our forefathers

Author Mark Anderson of 'The Day the World Discovered the Sun' explains how the transit of Venus allowed 18th-century astronomers to create an early GPS system.

Five books about powerful knowledge, and people who had it

Jim Willse reviews these offerings.

Connection isn't communication

People are connected like never before, and there must be big money in it. At least that's what they think on Wall Street, which put a $104 billion pricetag on Facebook's access to our connections.