Corona discharge with a discharge current of a few hundred microamperes can blow out a small candle flame within about 1 cm of a discharge point. A pinwheel, with radial metal spokes and pointed tips bent to point along the circumference of a circle, can be made to rotate if energized by a corona discharge; the rotation is due to differential electric attraction between the metal spokes and the space charge shield region that surrounds the tips. Corona discharge A corona discharge is an electrical discharge brought on by the ionization of a fluid such as air surrounding a conductor that is
The A Word their otolaryngologist refers Joe to a specialist who diagnoses him with autism. The story then follows how the dysfunctional family, including Rebecca (who feels invisible), Eddie and Nicola (who are coping with their own relationship problems) and tactless grandad Maurice cope with Joe's situation and their own apparent social disorders. Writer Peter Bowker was approached by Keshet who produced "Yellow Peppers" who wanted him to remake the Israeli series but with an original story line. Bowker drew on his own experiences and observations as a teacher and with his family to write "The A Word". Filming took place from October