There was a secret inside the envelope in the hands of Stephan Schlamminger, one of the world’s leading experts in experimental tests of gravity. He appeared to be on the verge of opening the envelope ...

Physicists have made the first precise measurement of Newton’s universal gravitational constant to use vibrating beams 1. Although the technique is not yet as precise as others, it could eventually ...

A device that can measure the gravitational force on a particle that weighs less than a grain of pollen could help us understand how gravity works in the quantum world. Despite keeping you stuck to ...