Why YKK zippers are the brown M&Ms of product design An Article by Josh Centers theprepared.com A ‘pro tip’ for evaluating the quality of a piece of gear is to look at the small details, such as zippers and stitching. Cheap-minded manufacturers will skimp on those details because most people just don’t notice, and even a cheap component will often last past a basic warranty period, so it’s an easy way to increase profits without losing sales or returns. If a designer does bother to invest in quality components, that’s a tried-and-true sign that the overall product is better than the competition. All the way throughThe Cycle of Goodness designdetailsquality
Fermi Estimates and Dyson Designs An Article by Venkatesh Rao www.ribbonfarm.com A Fermi estimate is a quick-and-dirty solution to an arbitrary scientific or engineering analysis problem. Fermi estimation uses widely known numbers, readily observable phenomenology, basic physics equations, and a bunch of approximation techniques to arrive at rough answers that tend to be correct within an order of magnitude or so. The term is named for Enrico Fermi, who was famously good at this sort of thing. …It struck me that there is counterpart to this kind of thinking on the synthesis side, where you use similar techniques to arrive at a very rough design for a complex engineered artifact. I call such a design approach Dyson design, after the physicist Freeman Dyson, who was one of the best practitioners of it (not to be confused with inventor James Dyson, whose designs, ironically, are not Dyson designs). designphysics