By this time we were drawing near the close of the park for the day, and considering how to finish riding things and hoping we could stick around a little later than the proper closing time.( Collapse )
So we took some pictures, and admired the tower, and we started walking back in the vague direction of the entrance, and bunny_hugger subtly guided me somewhere special.
Trivia: For a navigational aid in the final approach to landing the space shuttle design used the Pentagon's Tactical Air Navigation system, with a transponder on the ground giving bearing and range. This sytem was certified only for altitudes up to 50,000 feet, but three off-the-shelf receivers worked fine for the 140,000 feet altitude shuttle required. Source: Development of the Shuttle, 1972 - 1981, T A Heppenheimer.
Currently Reading: Physics In The Nineteenth Century, Robert D Purrington.