There was much wartime news last week from the technological fronts:
> Plastic petroleum, developed by Gulf Oil for business machines, now lubricates the magazines of the Oerlikon 20-mm. rapid-fire gun. Reason: it stays soft, sticks to metal at arctic and tropic temperatures.
> Paper pipe, which needs no priority number, may replace steel casing in oil drilling. Made like a mailing tube of resin-filled paper, it is hard, stiff but not brittle, so light a man can carry 70 feet of the three-inch size under one arm.
> U.S. ersatz materials are often better...