Sunspots" is a bad name: because Jevons used it first to mean something quite different; because only experts with telescopes can see sunspots, so they can't be common knowledge. But maybe it's too late!
Sunspots" is a bad name: because Jevons used it first to mean something quite different; because only experts with telescopes can see sunspots, so they can't be common knowledge. But maybe it's too late!