What do you notice in the story below? What are you wondering about? Leave a comment to tell us your thoughts!
A wire is wrapped around the equator of the Earth. It is then lengthened.
An old chestnut. The gap between the wire and the earth’s surface is independent of the size of the earth! If the wire is lengthened by X, the gap will be X/2pi whatever the diameter of the sphere in question. So a sphere of 100 yards diameter would still give a gap of X/2pi.
Mail (will not be published) *