Show CANADA jas HAS BIG TELESCOPE reflecting 11 apparatus at victoria 1 said to be 0 the L largest arg yet C constructed mel A seventy three loch inch reflecting tele scope which ranks looks in size AS aa the tha vlod to largett at telea telescope rope of that type yet completed 1 baa abee been td t tor for the dominion dominica astronomical ast intent observatory at victoria canada the instrument t is described lo in popular mechanics Moc hauel the mirror micro eteh in this tape of tolerate takes the place of a lens in concentrating C ing ill the ras a of light reassures measures 73 13 inches 1 ID diameter over or all 11 IS ia 12 I 1 inch inches thick at the edges dg rod and 1 ia pierced by a hole bale ten and one eighth inches in diameter th the silvered upper surface surfus la IS a pot potshot pain bola shot to bring tile tha reflected emd light to a focus 30 feet above the villy mirror for late co enormous place piece of giatas weighs T two and one mu quarter tons and yet Is so accurately supported that no floor flexure ocal can distort the surface which roust must nowhere deviate from flow the theoretical cur curie C tion more than n of an inch th the instrument weighs 55 tons and ad bill la 11 rest on massive piers pier of reen forced concrete the tube la 1 31 feet long oreg and it weighs 12 doaa it of unrest interest from an engineering point of view are the dome and observing bridge th the doare doimer 1 ts 36 feet in ill diameter suit and 1 is provided pod ld with a double shutter leasing having an opening 15 5 feet wide fit all the mole movements ments including revolution I 1 to any desired position as aa well wel as lb the op operation oration of the shutter better w nd end shield and tile the observing bridge are accomplished by means mean of electric owe mo ter tors |