Radio Telescope to be Built -- Scientists of Manchester University have been informed that they may go ahead and build the radio telescope with a movable reflecting mirror 250ft in diameter. It will cost £336,000, to build. The new telescope will use radio waves instead of light waves,Its "mirror", of wire mesh, with the supporting structure, will weigh 1,270 tons. The aerial, borne on a pole 185ft high at the focus of the "mirror", will be able to transmit signals to, and receive them from, any