The first comprehensive analysis of what the sarsen stones are made of came about with new technology—and good old-fashioned luck.
England
How Do Rivers Flow over Bedrock?
A study questions whether the hydraulics of rivers that lack loose sediments along their bottoms can be accurately depicted by standard equations for flow over sediment.
A Noninvasive Way to Study Groundwater-Dependent Ecosystems
Scientists used a noninvasive method to study the substructure of delicate groundwater-dependent ecosystems.