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