Text from back of image: "Major S. M. Strong, flight surgeon of the Medical Corps attached to Mitchel Field at Garden City L.I., had a remarkable experience a few days ago while on a flight to test the recording barograph and get the 'ceiling' of...
Letter from William du Pont to his secretary, Charles Lennig regarding the purchase of montpelier. Should Lenning manage to secure the purchase, du Pont asks for house plans, window locations, and ceiling height.
Text from image: "The Washington Monument is built of stone contributed by all the nations of the earth to honor the founder of this republic. From Arlington, across the river, where sleep the men who died for freedom, it looks like a giant spike...
Army Ordnances two stage Bumper rocket zooms skyward from the long range Proving Ground at Cocoa FL on the first leg of its flight. When the basic vehicle, a V-2, reaches the end of it s first burning period, a smaller Wac Corporal missile will be...
The huge tail span of the Constellation-first Lockheed to have three fins. Lockheed is famous for its many twin tailed airplanes. The three tail arrangement not only keep over all height to a minimum for convenience in fitting into hangars the...
Deeply upholstered, fully reclining and reversible chairs, a sound-proofed cabin exceeding 6 feet in height and wide unobstructed aisles are among the interior features of the Luxury Airliner which has just been put into service by Transcontinental...
Text from image: "Knowing What We Defend is Important, Too. The Washington Monument is built of stone contributed by all the nations of the earth to honor the founder of this republic. From Arlington, across the river, where sleep the men who died...
1835 cold blast charcoal furnace with water wheel & wooden blowing tubs built by Henry Potts & others. About 1880 Joseph D. Potts converted to a steam engine with iron vertical blowing engine and hot blast and increased stack height. Blown out in...
Photo from the PA Historical Society, Phila. PA. Photo taken about 1880 when furnace was changed from water to steam power & height of stacks increased.
The DuPont nylon yarn plant at Martinsville, Virginia is two blocks long, from one to six stories in height and is completely air conditioned. It went into operation in 1941 and its nylon yarn output doubles that of the company's first nylon plant...
After supervisors and engineers had witnessed the quick, efficient digging of a ditch in Johnson County, Iowa, by DuPont experts, they gave the Go Ahead on a long list of special projects in the area. Some idea of the height (150-180 feet) the muck...
A typical instance of control over giant explosive forces was the damming of the Saguenay River in Canada for a hydroelectric project. The torrential rush of the current balked successive attempts to complete a cofferdam, the conventional method....
A typical instance of control over giant explosive forces was the damming of the Saguenay River in Canada for a hydroelectric project. The torrential rush of the current balked successive attempts to complete a cofferdam, the conventional method....
Hendrick requests that Taunton reply to his earlier inquiries and adds a query about the height and diameter of the 10 horse boiler. Hendrick prefers their boiler to one from Salamandrine based on its lesser weight and appearance. The guarantee he...
Written on back: "p. 110. Escaping steam and water through the ruptured crown-sheet mingled with the smoke from the stack and formed a cloud several hundred feet in height completely enveloping its surroundings."
Text from front: "Between Bradford and Kane, Pennsylvania; Height: 301 Ft., Length: 2250 Ft." On back: This mammoth steel viaduct carries the tracks of the Erie railroad across Kinzua Valley at an elevation of about 2000 feet."
Benjamin Franklin and Aeronautics by I. Bernard Cohen - (from a contemporary print)""The first parachute landing was made in England by a Frenchman, Mons. Garnerin descending from a height of about 800 feet""
Text from back of photo: "A Naval seaplane from Hampton Roads, Va. carrying Lieuts. G.R. Fairland and R.G. Caughlin, crashed into the James River at Richmond, Va. other day, from a height of 350 feet in the air. The officers were in Richmond to...
