Two years ago, I was warned by a friend that if I went with a Delta faucet, it would fall apart. I did not heed that advice because I liked Delta pull-out faucet model 474 NN (NN designates brushed nickel). Indeed, two years later, threads in the soft plastic that holds the aerator in the spout stripped. To its credit, Delta customer service shipped a new spout free of charge the day after I filled out a simple e-mail form describing the problem. In checking on the order , a cheery and competent customer service rep came on the line and confirmed the shipment. I was impressed.
But it made me wonder what type of plastic was used in the spout. What were engineering and cost tradeoffs made in deciding what plastic to use? I'm mechancial enough to screw in an aerator without mauling the threads, but I thought this plastic was unusually soft. After all, anyone is going to clean the aerator from time to time and that means removing it. So I my call is into Delta. Stay tuned for explanation or offer your if you have one.
The Dutch are known for their love of bicycling, and they’ve also long been early adopters of green-energy and smart-city technologies. So it seems fitting that a town in which painter Vincent van Gogh once lived has given him a very Dutch-like tribute -- a bike path lit by a special smart paint in the style of the artist's “Starry Night” painting.
For decades, engineers have worked to combat erosion by developing high-strength alloys, composites, and surface coatings. However, in a new paper, a team at Jilin University in China turned to one of the most deadly animals in the world for inspiration -- the yellow fat-backed scorpion.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.