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
Halo in a Haystack Killing" and 2002's "Unloved & Weeded Out". All tracks written by Converge. Halo in a Haystack Halo in a Haystack is the debut album by American metalcore band Converge, released in 1994 through Earthmaker Records. To fund the making of the record, vocalist Jacob Bannon saved up money from working at a nursing home. The record was released as a black vinyl and is not available in any other format. Only 1000 copies of this record were made and the record has not been reprinted since. However all of the record's tracks with the exception of the 9th track "Exhale"