I've noticed -- in my case with an automotive lighting junction box for the brake lights in a 1988 Toyota Camry -- that burned traces are not only from high current (although that's the usual cause), but can wear out over time. I'm not sure if that's from normal use or from slight periodic surges. Actually, in the case I'm talking about, it was more the connector pins which had problems, and they weren't corrosion based, but rather from current. YMMV.
Your wife has to give you big kudos for sleuthing out that fix. I have a pretty handy husband, but in my house, that would have been a $700 repair bill hit. It's nice to hear a fix-it story where engineering rigor and diligence not only took center stage, but paid off in spades.
At this year's MD&M West show, lots of material suppliers are talking about new formulations for wearables and things that stick to the skin, whether it's adhesives, wound dressings, skin patches and other drug delivery devices, or medical electronics.
The US Congress has extended an important tax credit for solar energy, a move that’s good news for future investments in this type of alternative energy and for many stakeholders in the solar industry.
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.