This is a phrase to describe people liking each other in a romantic way but however they are not sure whether the love is real or not thus , they do not date each other but they like each other and they know it. It is like friends with benefits but no sexual actions is involved. This is noticed when two people look at each other constantly and may or may not involve "stalking".
An EP by Metallica. It was the songs that were going to be on Death Magnetic, but did not appear on the album. They are untouched, untuned, and not well developed, but worth buying for the complete collection.
Magnetic fields can be produced by moving electric charges and the intrinsic magnetic moments of elementary particles associated with a fundamental quantum property, their spin.