Why do LEDs generate heat?
On 09/10/2019 16:54, whisky-dave wrote:
On Wednesday, 9 October 2019 14:59:22 UTC+1, Commander Kinsey wrote:
So what do washing machines use, AC or DC?
Water and some sort of cleaning chemicals dependent on personal choice.
A few years ago Which? reviewed a washing machine that didn't use
detergent: it sort of passed an electric current through the water. I
don't know how good it was: apparently washing normally with detergent
uses some kind of electric charge to clean fabric as just passing the
water through the fibres isn't enough to remove the dirt.
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Max Demian
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