RARE 1935 Explorer II Baloon Stratosphere Flight w/ First photo of curvature o..

Description: RARE 1935 Explorer II Baloon Stratosphere Flight w/ First photo of curvature of Earth Author:US Army Air Corps; The National Geographic Society Publisher:The National Geographic Society Publication Date:1936 Qty Available:1 Condition:Used: Good Sku: 051472 Notes: Ex Univ of Cincinnati Library softcover with 277 pages. Illustrated. Front cover is seperated from binding. Features a 17" X 24" fold-out photo w/overlaid map (with 2" tear at fold) "THE FIRST PHOTOGRAPH EVER MADE SHOWING THE DIVISION BETWEEN THE TROPOSPHERE AND THE STRATOSPHERE AND ALSO THE ACTUAL CURVATURE OF THE EARTH - PHOTOGRAPHED FROM AN ELEVATION OF 72,395 FEET, THE HIGHEST POINT EVER REACHED BY MAN." The Explorer II was a high-altitude balloon launched on November 11, 1935, by the U.S. Army Air Corps. It reached a record altitude of 72,395 feet (approximately 22,066 meters). Captains Albert W. Stevens and Orvil A. Anderson were aboard the helium-filled balloon during this historic flight. From that altitude, they captured a remarkable photograph that clearly showed the curvature of the Earth. This image provided direct evidence of our planet’s spherical shape and its place in the universe. Prior to this, indirect evidence existed, but photographic proof was lacking. The Explorer II flight played a crucial role in advancing our understanding of Earth’s curvature and our position in space. Your purchase benefits literacy and summer reading programs in Cincinnati and Hamilton County, Ohio. We ship every business day. All books ship in cardboard bookfolds with delivery confirmation. Sets or unusually heavy items ship in a box. Please contact us for more information.

Price: 79.95 USD

Location: Lynchburg, Ohio

End Time: 2024-10-06T16:48:08.000Z

Shipping Cost: 3.98 USD