During his 14 years working in Dongshan, Gu led persistent efforts to plant trees and control sand erosion. His efforts ...

Birds sing the most about an hour before dawn, when the air is at its stillest. Theoretically, this enables sounds to travel ...

Infrasound—noise below the range of typical human hearing—from power, heating and mechanical systems within buildings can ...

Those jolts of terror that seem to occur whenever a noise comes closer? While we assume that this is an age-old survival ...