I can’t get my head around how a sewing machine sews a hem on material when it just a needle with some thread poked through it stabbing the material in a line. How does that then make the thread loop back under the material to create a hem on both sides?
In: Engineering
dude sewing machines are like magic but with gears and stuff. the needle does stab but there’s a bobbin that pulls the thread below. it loops and ties it all together like a cool knot. it’s way smarter than it looks
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