Seismic signals are produced over a range of frequencies, and 'broadband' seismometers have been developed that typically detect those in the region of 0.01 to 50 hertz. Earth's longer-period ...

A new sensor that measures the local acceleration due to gravity using a Bose–Einstein condensate (BEC) of ultracold atoms has been made by physicists in Germany, the US and Canada. While the ...

Gravity might feel strong if you drop a bowling ball on your feet, but is in fact the weakest force. Compare it to electromagnetism: the pull of all the Earth’s gravity can’t stop you from picking up ...

NASA’s Curiosity rover has provided scientists with unexpected insight into the gravity on Mars by using the rover’s sensors as a makeshift gravimeter. The Curiosity rover has accelerometers for ...

Researchers have succeeded in measuring the gravitational field of a gold sphere, just 2 mm in diameter, using a highly sensitive pendulum - and thus the smallest gravitational force. The experiment ...

Physicists have measured the gravitational field of a smaller object than ever before, a gold sphere with a mass of about 90 milligrams. This could help us understand how gravity fits together with ...