technology How to Save Billions in Building and Bridge Repair: Coat Them In Burnt Coal Ash A new coating for concrete structures could result in seriously tough structures that resist damage and reduce costs of reconstruction and repair. Better yet, the coating relies on waste ash from burning coal in power stations. Read More » By: Kit Eaton
Infographic of the Day Infographics of the Day: What's Up With That Crazy European Ash Cloud? Real-time information about the ash cloud, and the airports that are gradually being reopened. Read More » By: Cliff Kuang
