You’ve probably heard the term magnetic gradient before, but have you ever seen one? Now you can in [supermagnetman’s] video, below. The key is to use very fine (2 micron) iron filings and special ...
You’ve probably heard the term magnetic gradient before, but have you ever seen one? Now you can in [supermagnetman’s] video, below. The key is to use very fine (2 micron) iron filings and special ...
The Brighterside of News on MSN

How does the Earth generate its magnetic field?

Iron, the most abundant element by mass on Earth, reveals a fascinating complexity under extreme conditions of temperature ...