Using sticky tape to illustrate basic electrostatic repulsion and attraction. Set-up for a blog post looking at the "tipping point" behavior where tapes that are attracted get pulled all the way together if they get close together.
Uncertain Principles blog: http://scienceblogs.com/principles/
Post explaining this video: http://scienceblogs.com/principles/2014/01/15/charged-tape-toy-models-and-dimensionless-parameters/
