Velocity gradients prove key to explaining large-scale magnetic field structure

All celestial bodies—planets, suns, even entire galaxies—produce magnetic fields, affecting such cosmic processes as the ...
Dot Physics on MSN

Rotating coil physics problem: Induced EMF in a magnetic field

Solve a rotating-coil electromagnetism problem by deriving the induced emf from changing magnetic flux. Learn how coil area, number of turns, rotation rate, and magnetic field strength set the emf ...
Morning Overview on MSN

A new method could pull power from Earth’s magnetic field

For more than a century, engineers have chased new ways to turn the planet’s natural motions into usable power, from tides to geothermal heat. Now a small group of physicists says Earth’s own magnetic ...
The Conversation

Could rotating black holes be the wind turbines powering the distant future? We tested the physics

Marion Cromb receives funding from EPSRC grant EP/W007444/1. Hendrik Ulbricht receives funding from EPSRC (grant EP/W007444/1). Black holes are mysterious objects – there’s a lot we don’t know about ...
Space.com

The sun's magnetic field will flip soon. Here's what to expect.

The reversal could actually have a beneficial effect on Earth. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The sun is on the verge of a ...