Originally Posted by Fianchetto
I, the somewhat mighty and moderately powerful Zeus decided to improve on that Other Guy's work by making the globe of the Earth a perfect sphere. I then hired a sub-contractor named Moses to part the resultant global ocean at the equator to form two great seas, leaving dry land between. I saw then an image of Saturn from the Cassini probe and thought it would be jolly nice to have a band about the Earth. So, I put a band of silver upon the surface of the Earth, at the equator, Moses having given me plenty of room to work. I saw the pics of Saturn again and realised that its rings were of larger diameter than the planet. So, I increased the length of my band by 3 inches. Now the band hovers above the surface of the planet by some amount. I wish to measure its altitude - but which instrument would best suit my needs?
a> an interferometer
b> a micrometer
c> a ruler
d> an altimeter
:confused: :confused: :confused: