What is Dry Ice
Dry ice has already become a valuable refrigerant, and the reason is that its temperature stands some 112 below zero. Pound for pound it refrigerates fifteen times as much as common frozen water.
Archive for November, 2009
Puncture Solutions
Magnets and small boys used to pick nails up off roads to avoid punctures in car tires
Lindbergh Mail Problems 1927
COLONEL CHARLES A. LINDBERGH’S chief secretarial aide, Commander Fitzhugh Green, has made public the recently completed cataloguing of the popular flier’s mail.
Introduction of 40 Hour Working Week
THAT man should earn his bread by the sweat of his brow is a dictum of the Scriptures that has been pretty well abolished in America, where, in the main, he now acquires, not bread, but canned goods and package foods, by the oil on a machine. Mr. Thomas A. Edison is on record as [...]
The Outlook for Oil
THE Federal Oil Conservation Board has reported to Secretary Work that the supply of oil in the pumping and flowing well areas of the United States is about 4,500,000,000 barrels-a six years’ supply in theory, though it cannot be extracted within that period. Up to June last the 68,000 wells bored since 1866 have produced [...]
