Happy PI π Day. The Greek Letter π was first used as shorthand for π by Welsh mathematician William Jones in 1706—more than three hundred years ago. Also somewhat ironically, Albert Einstein was born this day in 1879, and Stephen Hawking died this day in 2018—Hawking was born on January 8, the day Galileo died. Quite a pair of bookends to Hawkings life.
Happy PI π Day. The Greek Letter π was first used as shorthand for π by Welsh mathematician William Jones in 1706—more than three hundred years ago. Also somewhat ironically, Albert Einstein was born this day in 1879, and Stephen Hawking died this day in 2018—Hawking was born on January 8, the day Galileo died. Quite a pair of bookends to Hawkings life.