On the surface of the Earth, the gravitational field has a magnitude of 9.8 Newtons per kilogram. So, a 1 kilogram rock would have a gravitational force of 9.8 Newtons. A 70 kg person would have a ...

For example, researchers aim to use this type of technique to better measure Newton’s gravitational constant, G, which reveals the strength of gravity, and is currently known less precisely than ...

More information: Samuel H. Moody et al, Deterministic control of nanomagnetic spiral trajectories using an electric field, Nature Communications (2025). DOI: 10.1038/s41467-025-60288-1 ...

Earth is fortunate in having a magnetic field: it protects the planet and its life from harmful cosmic radiation. Other ...

These larger top-of-the-line devices can detect changes to gravitational fields of around one part in a billion, whereas this one can do so to about one part in 60 million.

One of those investigations involved a distinctive deep dive into studying the interior of the moon.

Urban magnetic fields reveal clues about energy efficiency, pollution Network magnetometry, smart data analysis combined to monitor health of cities Date: May 31, 2022 Source: American Institute ...