![Physics Frontiers show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/075/276/small/physics-frontiers.jpg)
Summary: Randy talks to Jim about gravitoelectromagnetism. Based on the similarity between Newtonian gravity and electrostatics, there should be a second gravitational field,the gravitomagnetic field. What are the implications of the existence of such a field, and how large are those effects? Show notes: http://frontiers.physicsfm.com/3