Q: Our vacation house has vintage Trex decking. After a few years, it became horribly ugly, and no amount of cleaning or brightening ever did more than just lighten the stains. More than five years ...

Here’s an interesting and detailed teardown and repair of a Keithley 2001 7.5 Digit multimeter that is positively dripping with detail. It’s also not every day that we get to see someone using x-ray ...