Mondo Knows Facts
A zipper slider is a tapered Y channel
The two rows enter separately and leave interlocked through a narrow throat The slider has a wide mouth that takes the separated tooth rows and tapers into a narrow throat on the other side. As the pull tab drags it along, the angled walls force each left tooth between two right teeth. Running it backwards reverses the geometry and prises the interlocked teeth apart again. It sits in Mondo's everyday life collection, one of 200 facts that each trace back to the reference below.
Where this comes from
Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.
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More facts like this
Coil zippers are made from one spiralled plastic strandA continuous monofilament is wound into a helix and stitched to the tapeAn invisible zip hides its teeth behind the tapeThe coil sits on the reverse of the tape so only a seam shows when closedTwo way zips carry a slider at each endTwo sliders meeting in the middle let a jacket open from top or hemYKK on zippers stands for a Japanese manufacturing companyThe world's largest zipper maker uses the initials of its founder's businessGarment zippers incorporate spring latches to stay closed securelyPull tab locking pins prevent clothing zips from sliding down under stressCombination locks release when internal notches line upEach dial turns a disc with a gap, and all the gaps must meet at once
🧭 Everyday Lifefact 137 of 200
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Tags: zippers, clothing, mechanisms
A zipper slider is a tapered Y channel: the short answers
- Where does this come from, and can I check it?
- The two rows enter separately and leave interlocked through a narrow throat. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
- Is this really a everyday life fact?
- Yes. It sits on the Everyday Life shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
- What else can I read about it?
- The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.