how do washing machines work? How does just swishing some clothes around and soapy water get out stains and dirt but scrubbing clothes with a brush and soapy water only seems to spread the stain around?
In: Engineering
Your arms get tired. Your washing machine doesn’t.
Your washing machine bangs your clothes around for like half an hour to an hour, and it does that all at once. If you wanted to wash 20 items by hand for half an hour, you’d be at it for 10 hours. You ain’t doin’ that; you might scrub something for a minute or two.
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