In the quest to measure the fundamental constant that governs the strength of gravity, scientists are getting a wiggle on. Using a pair of meter-long, vibrating metal beams, scientists have made a new ...
Although the Earth’s magnetic field is reliable enough for navigation and is also essential for blocking harmful solar emissions and for improving radio communications, it’s not a uniform strength ...
Four fundamental forces are known in physics: the weak and strong interactions, and the electromagnetic and gravitational forces. The gravitational force is the weakest of these four. For this reason, ...
NASA’s Juno spacecraft has been in orbit around Jupiter for just over five years. Some of the goals of the spacecraft are to measure the planet’s composition and gravitational field strength. Tons of ...
The answer depends on your location, your distance from the centre of Earth and any local variation in gravitational field strength due to the density of underlying rock. Crunching the numbers, the ...
If you’re superstitious, a black cat in your path is bad luck, even if you keep your distance. Likewise, in quantum physics, particles can feel the influence of magnetic fields that they never come ...
Scientists think the moon may have an interior that's kind of similar to Earth's — but questions remain. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...