Show TABLOIDS OF SCIENCE tho the skin ot of the otter la Is capable ol of manipulation which makes it 1 ax ly difficult to detect it from that 63 0 the seal the anclena credited the raven with u unusual longevity but modern hinves avea tl ti gatlon gation shown tha IL 1 in not noi warrant warritt ed the tha bird rarely lives more than seventy years A japanese army surgeon has to in vented a I 1 machine n a cherio run by elec electricity triciti that grinds as many beatis beada into dout floii in to 40 minutes as a man can grind b hand in a day the heart of an average man maket makei about one three thousandth ot of a volt toll 1 ot electricity at af mry beat and an Is im strument ment sensitive enough to measure it has been invented platinum has haa a advanced in price 8 sc c rapidly in recent years that gold is il being used to alloy it to lessen tha th cost of electrical apparatus in which it Is necessary |