On Thu, 10 Oct 2019 11:49:46 +0100, Max Demian wrote:
On 10/10/2019 00:16, Commander Kinsey wrote:
On Wed, 09 Oct 2019 22:33:40 +0100, Max Demian
wrote:
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.
Do you have a link? Google ain't working.
For the latter, I was thinking of the following - click on "show
transcript":
https://www.abc.net.au/radionational...t-one/10994412
This amused me!
"But theres another surprising advantage of not making lots of fur. Fur is made from proteins. If youre not putting your protein into fur, well, you can use it to bulk up your brain. Maybe losing our body fur made us into the clever folk we are today."
So I was right, hairy folk are Neanderthal ****wits.
https://www.abc.net.au/radionational...t-two/11020360
Not electrical, as I (mis)remembered: The detergent (presumably - it
doesn't actually say) loosens the dirt in the tiny channels in the
fabric, then, when rinsing in clean water, the detergent diffuses out
taking the dirt with it. So it's the rinsing that removes the dirt: it's
not just to remove the detergent.
This diffusion thing is simpler than people make out. You don't have to think of a gradient or wonder why it would magically follow it. If you have one area containing 50 things, and another area also containing 50 things, chances are the same amount of things will randomly move both ways. That's 50 pieces of muck still in the clothes and 50 pieces loose in the washing machine water. But if you have one area with 50 things and one with 0 things (that's clean water you've just replaced), no muck can move back in, it can only go out, until it reaches the equilibrium of 25/25. Or if the water outside the clothes is bigger than the clothes, an even better proportion.
I can't find a reference to Which?'s "electric washing machine." It was
some years ago.