Brush discharge plastics. The ability of an electrical discharge to cause an explosion in flammable atmospheres is measured by the "effective energy" of the discharge. The effective energy of brush discharges is 10-20 mJ, much larger than that of corona discharges 0.1 mJ. Therefore, brush discharges are considered an explosion hazard, while corona discharges are not. Brush discharges can occur from charged insulating plastics (for example polythene) to a conductor. Brush discharge A brush discharge is an electrical disruptive discharge similar to a corona discharge that takes place at an electrode with a high voltage applied to it, embedded in a nonconducting
Time and a Word who requested the band perform the song in concert during the "90125" tour in 1984. The song "Time and a Word" saw the band searching for an anthem-type song. Anderson, who was still musically naive, presented its basic theme to the group on a guitar, using only two or three chords, leaving the other band members trying to discern what he was playing. The song was recorded with Foster on acoustic guitar. Again Banks didn't agree and claimed it was not meant to be part of the final mix, having been intended only as a guide track. On the final