- Sworn in by his father, a Justice of the Peace, late at night, on the Coolidge family bible, after hearing of Harding’s death, John Calvin Coolidge, Jr. (1872 – 1933) may have represented the real return to normalcy; one of his slogans was “Keep Cool With Coolidge.” He was popular in his day, but due to his lack of charisma he’s not remembered much now. Most people remember Prohibition and the rest of The Roaring Twenties instead. If they do remember him, it is for his legendarily taciturn temperament, which earned him the nickname “Silent Cal”. Like most old-fashioned New Englanders, he never used twenty words when one would do the trick, and never used ten words when a simple nod would suffice. This also translated to his philosophy of governance, which was to do as little as necessary, on the grounds that 90% of impending problems would solve themselves before they ever became serious (a philosophy that made him, reportedly, the favorite modern President of Ronald Reagan). Partially as a result of this hands-off philosophy, he has been described as being, historically, more relevant as a source of amusing anecdotes than as a president.
- Real number (Wikipedia)
In mathematics, a real number is a number that can be used to measure a continuous one-dimensional quantity such as a distance, duration or temperature. Here, continuous means that pairs of values can have arbitrarily small differences. Every real number can be almost uniquely represented by an infinite decimal expansion.