A camera mounted inside a dishwasher.
Bill explains how the rise of home air conditioning had to battle the open air movements in public school: They regarded it as only for factories where it was first introduced. Only when movie theatres added air conditioning in the 1930 and 1940s did it become popular for the home.
There was a leap second June 30th. And while there's not the Y2K-scale of disaster being predicted for it, there are probably going to be a few problems. Here's why computers have trouble with something that should, in theory, be pretty simple.
