Numbers in the News

$960,000

PRICE at auction this summer for a handwritten manuscript of The Sign of Four, the second-ever Sherlock Holmes novel by Sir Arthur Conan Doyle.

Source: Sotheby’s

Monirul Bhuiyan/AFP via Getty Images

2,492 carats

SIZE of a diamond (above) recently discovered in Botswana. Weighing a little more than a pound, it’s the biggest diamond unearthed in more than a century, and the second-largest ever found.

Source: The New York Times

6.2 million

NUMBER of K-12 students in the U.S. who now attend a school that utilizes solar power. The use of solar energy in U.S. schools has more than quadrupled since 2014.

Source: Generation180

Text-to-Speech