Use a forty-dollar credit cardsized computer to enhance your amateur radio operating. Learn how to set up and configure the computer. Then learn how to install operating aids, such as logging, timekeeping, satellite tracking, and Morse code practicing. Communicate in sixteen digital modes. Design an[...]
When Sir Cumference drinks a potion which turns him into a dragon, his son Radius searches for the magic number known as pi which will restore him to his former shape[...]
In this delightful layperson's introduction to one of math's most interesting phenomena, Drs Posamentier and Lehmann review p's history from pre-biblical times to the 21st century, the many amusing and mind-boggling ways of estimating p over the centuries, quirky examples of obsessing about p (inclu[...]