The National Geographic Magazine, Volume 78National Geographic Society, 1940 - Geography Indexes kept up to date with supplements. |
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Page 167
... engine . With whines and growls of protest from gear train and motors , the entire engine was lifted high in the air , carried over the tops of half a dozen others , and set gently onto the wheels . Controlling these op- erations was a ...
... engine . With whines and growls of protest from gear train and motors , the entire engine was lifted high in the air , carried over the tops of half a dozen others , and set gently onto the wheels . Controlling these op- erations was a ...
Page 716
... engines are streamlined , and this is one big advantage of the liquid - cooled " in - line " engine used in many fast military ships . It has a smaller frontal area , hence less drag than the radial , air - cooled engine with cylin ...
... engines are streamlined , and this is one big advantage of the liquid - cooled " in - line " engine used in many fast military ships . It has a smaller frontal area , hence less drag than the radial , air - cooled engine with cylin ...
Page 719
... engine is behind the pilot , and geared to the propeller by a drive shaft extending forward . This plane has a speed of approximately 400 miles per hour . Photograph courtesy Dr. Orville Wright When Airplane Flying Was Born - the ...
... engine is behind the pilot , and geared to the propeller by a drive shaft extending forward . This plane has a speed of approximately 400 miles per hour . Photograph courtesy Dr. Orville Wright When Airplane Flying Was Born - the ...
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American ancient animals appeared base boat boys British brought building built called Canal capital carried close coast Collection color comes early east English eyes face feet fields figure fish five followed four Gallery girls glass gorilla green Greenland ground half hand head hills important Indian island Italy keep land later light live locks London look Malay Manila Mexico miles mountain National Geographic Society native natural never night North once painted passed Photograph picture plant Plate port reached River road rock seemed seen ships showed side Singapore stands stone street thousand took town trees turned United Veracruz village Virginia walls West wind