11. Krippner suggested no psychokinesis was involved; the effect was produced by an electrostatic charge . 12. An electrostatic charge is placed upon two aluminium foil leaves, causing them to repel. 13. Bees typically are fuzzy and carry an electrostatic charge . 14. This is a form of Faraday Cage that protected the instrument from external electrostatic charges . 15. The wurlitzer strikes flat tines whose vibration is amplified from a surrounding electrostatic charged 'comb '. 16. Electrostatic separation is a process that uses electrostatic charges to separate crushed particles of material. 17. Based on the principles of electrostatics charged particles will repel other particles of like charge. 18. Electrostatic charges are the charges associated with static electricity.19. Another type of pleated filter has an internal wire element that carries an electrostatic charge . 20. Putting a positive electrostatic charge on a surface in the path of the beam, for instance?