If this was keeping you awake, you can thank QT at the Chicago Sun-Times.
K.R., a Palos Heights reader, writes:
"Why does aluminum foil have a shiny side and a dull side? I mean, is one side better than the other?"
QT checked with a manufacturer. One side is not better than the other.
What happens is that when two aluminum sheets, one on top of the other, are sent between rollers, the side of each sheet against the rollers comes out shiny while the side against the other sheet comes out dull.
Isn't it amazing how some of the simplest everyday questions yield fascinating answers?
And some don't?