UFO Article (Blog): 

“SHAKE, RATTLE, and ROLL: Is There Evidence

That UFOs Project Attractive or Repulsive Force?”

by Dr. Michael D. Swords, 22 May 2013

(The Big Study)

Michael D. Swords presents 49 UFO cases where electromagnetic (EM) effects were noted:

http://thebiggeststudy.blogspot.com/2013/05/shake-rattle-and-roll-is-there-evidence.html

(thebiggeststudy.blogspot.com/4.bp.blogspot.com image)