"The telescope's huge dish covers an area of about 50 hectares (20 acres)." This is, obviously, a case of reverse conversion. In any event, this documentation of information helps to illuminate the problems encountered by the ill-fated Mars lander a few months ago. It also emphasizes the imperative of adopting the world-wide standard of measurement, SI, if further disasters are to be minimized. Duncan DT Bath, 861 Kensington Dr., Peterborough ON K9J 6J8 (705)743-4297
