Yes, foolstroupe, and I did get what you were saying. Another fine example was people noticing that the Pyramids seem to have a side length that is a fairly exact multiple of pi in ancient Egyptian cubits. "Impossible that they could have built this!" some foolish people said, "it must have been aliens."

Until someone figured out that they must have used a measuring wheel on the end of a stick. The wheel would have a radius of one cubit (or a half cubit, or any multiple of a half cubit [call it 1/2 x cubits]) and they would measure the sides by pacing off the distance and counting the revolutions of the wheel. If you measure out a whole number of revolutions, you get a distance of pi times x times the number of revolutions, or an exact multiple of pi, without even knowing or caring about pi.

And what has this to do with bagpipes? Well, remember that pipe with a beating reed well down inside, found in an Egyptian tomb?

Well, erm...no, actually, it really is irrelevant, sorry!