The Elusive Origin of Zero

[ad_1] Sūnya, nulla, ṣifr, zevero, zip and zilch are among the many names of the mathematical concept of nothingness. Historians, journalists and others have variously identified the symbol’s birthplace as the Andes mountains of South America, the flood plains of the...

Richard Leakey’s Legacy in Science, Conservation and Politics

[ad_1] Richard Leakey, paleoanthropologist, conservationist and Kenyan political leader, died January 2 at his home near Nairobi. His expeditions discovered hundreds of hominin fossils, leading Fred Spoor, a paleoanthropologist at the Natural History Museum in London...