Food for Thought
Not long ago, food advertising appeared primarily in newspapers, magazines, and television. Today, though, manufacturers are embracing new media to ever more effectively target their youngest consumers: children. A new study conducted for the Henry J. Kaiser Family Foundation analyzes how these companies are feeding their messages to tots.
The number of Web sites hosting pages for...
The catalog of humongous prime numbers has a new entry–the champion prime (220996011 – 1), which has 6,320,430 decimal digits. It's the largest known prime number and the 40th Mersenne prime ever found. A prime is a whole number (other than 1) that is evenly divisible by only itself and 1.
Written in the form 2p – 1, where the exponent p is a prime number, Mersenne numbers hold a...