Archive: 08/3/2011

6 million years of savanna

University of Utah scientists used chemical isotopes in ancient soil to measure prehistoric tree cover – in effect, shade – and found that grassy, tree-dotted savannas prevailed at most East African ...

Aug 03, 2011 4.2 / 5 (5) 1 | with audio podcast

The next STEP in science education

By many accounts, the picture of science education in the United States is bleak: American students lag their international peers in standardized test scores, fewer of them are studying science and engineering at the university ...

Aug 03, 2011 not rated yet 0

Long-time mystery in cobalt oxides

The existence of an intermediate-spin (IS) state in cobalt oxides has long been a subject of dispute. A recent resonant X-ray scattering experiment has clearly demonstrated Co3+ eg orbital ordering in Sr3YCo4O10.5, ...

Aug 03, 2011 5 / 5 (3) 0 | with audio podcast

Web search needs a shake-up

A University of Washington computer scientist is calling on the international academic community and engineers working in industry to take a bolder approach when designing how people find information online.

Aug 03, 2011 5 / 5 (1) 2 | with audio podcast