Show telescope Tel escove marvel si sir prank frank byson astronomer royal while testing tile the big tel telescope at greenwich observatory turned it on london lie ile observed a menacing crack nt at the base of a church steeple lie ile wea measured the crack with the alie instruments used to determine lunar distances and was convinced it was dangerous it was difficult to find where the church was because the magnification was 0 o great only the steeple showed in the telescopes field but avith ith the aid of a large scale mill and instruments st dyson placed the chur church |