Beams reveal Archimedes' hidden writings Previously hidden writings of the ancient Greek mathematician Archimedes are being uncovered with powerful X-ray beams nearly 800 years after a Christian monk scrubbed off the text and wrote over it with prayers. Math Whiz Shiing-Shen Chern Dies at 93 SHANGHAI, China - Shiing-shen Chern, a Chinese-American mathematician famous for his breakthroughs in differential geometry, died Friday in the northeastern Chinese city of Tianjin. He was 93.
|