Amazing Magnetism - Demos of Invisible Forces

Abstract:

Magnetic fields are puzzling and a perplexing phenomenon to grasp. Pushes and pulls applied without objects touching are difficult to understand and to relate to everyday life. For this poster we will show some of our most interesting magnetic field demonstrations, including field line visualizations using an array of compasses, electromagnetic induction, and an inductive “cannon” that shoots a ring. We will relate the issues and lessons of electromagnetism to the Earth’s and Sun’s magnetic fields and to everyday technology that uses electromagnetism. This presentation is sponsored by NASA’s Magnetospheric Multiscale Mission (MMS).