April is the traditional month for spring cleaning: opening doors wide for the first time in months, polishing things till they gleam, possibly beating on rugs with some kind of stick or club? In honor of this season of good housekeeping, we've asked Jeopardy! mastermind Ken Jennings to help us out with a little mental spring cleaning. He'll be dusting away some persistent around-the-house myths and spraying the sweet-smelling Lysol of Truth over all your remaining brain clutter.
The Debunker: Is Window Glass Really a Slowly Flowing Liquid?
It's easy to see the appeal of this myth. The windows of medieval cathedrals, it's been noticed, are often thicker at the bottom than they are at the top. Imagine these brightly colored panes of religious scenes, seemingly frozen but imperceptibly melting over the centuries, a potent symbol of Time's wingéd chariot, undetectable in any given instant, but inevitably coming for us all!