Year: 2005

  • VAC, Part 3

    I did some more exploration of the local electrical power situation I outlined in my previous two postings. (Part 1 and Part 2.) I drove to another block fed by a different phase of the same three-phase distribution lines that feed my building. After a couple of times around the block, I spotted an apartment… Read more

  • Google + Keyhole = Google Earth

    Google just released the next version of their Keyhole software. It’s called Google Earth, and of course it’s a beta release. (Update: All I got was a message from a Google email address saying that they were making the beta available to current Keyhole subscribers, which I am. The message included a download URL that… Read more

  • Some Relief For Skyway Congestion

    People driving between downtown Chicago and northwestern Indiana have for several decades now had the option of taking the Chicago Skyway. This is a toll road built and operated by the City of Chicago, and it’s the only toll road not operated by the Illinois Toll Highway Authority. That’s a bit of a problem, because… Read more

  • VAC, Part 2

    As I mentioned in my last entry, we’re having a few electrical problems at our house. ComEd is supposed to supply voltage at 120VAC (Volts Alternating Current). That’s just a nominal value, it can vary a bit. ANSI standards supposedly permit 5% variation, from 114 volts to 126 volts. ComEd’s rule book says they may… Read more

  • VAC

    Here’s a question that’s turning out to be harder to answer than I would have thought: What’s the acceptable voltage range for your house? A few days ago the lights flickered and the speakers on one of my computers started making funny noises. Turns out they’re fried. That computer system wasn’t on a UPS, so… Read more