Zippers – they are all around us, from clothing to luggage, from boots to gear storage. Yet so many people never really took the time to consider how they worked. But this animated gif does a great job of explaining how a zipper, well, zips. Note the way the raised nub fits into the impression on the other side, creating a pressure fit to hold it together.
See- it’s simple. Unless, of course, the zipper rips from the material itself. In which case I suggest looking for a sewing GIF for further explanation..
