Measuring the smallest magnets: Physicists measured magnetic interactions between single electrons
Monday, July 28, 2014 - 09:01
in Physics & Chemistry
Imagine trying to measure a tennis ball that bounces wildly, every time to a distance a million times its own size. The bouncing obviously creates enormous "background noise" that interferes with the measurement. But if you attach the ball directly to a measuring device, so they bounce together, you can eliminate the noise problem.