Scientists have developed a powerful new dual-imaging tool that maps the retina’s structure and oxygen use in unprecedented ...

VDE Americas' David Devir looks at the origins of the supersized PV glass problem and considers how the industry can return to reliability.

Yeah, but why does wood float? There are two forces acting on the life jacket - its weight and the force of the water pushing upwards on it - the upthrust. And if the weight is equal to or less than ...