The Technical World Magazine, Volume 15Technical World Company, 1911 |
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Results 1-3 of 51
Page 208
... BIRD THAT SOARS SLOWLY. BIRDS AS AVIATORS ' MODELS FIG . 7. THE FRIGATE BIRD - ONE OF THE. A MONG the unexplained things of nature that man has been fretting his brain over to little purpose as yet , is the fact that some birds have the ...
... BIRD THAT SOARS SLOWLY. BIRDS AS AVIATORS ' MODELS FIG . 7. THE FRIGATE BIRD - ONE OF THE. A MONG the unexplained things of nature that man has been fretting his brain over to little purpose as yet , is the fact that some birds have the ...
Page 209
... birds some clearly defined classes : First , birds exclusively rowers ; second , birds practicing the rowing flight and soaring flight ; third , birds practicing rowing and sailing ; fourth , birds prac- ticing only sailing flight . Are ...
... birds some clearly defined classes : First , birds exclusively rowers ; second , birds practicing the rowing flight and soaring flight ; third , birds practicing rowing and sailing ; fourth , birds prac- ticing only sailing flight . Are ...
Page 210
... birds , such as the petrel and frigate birds ; the others have been given to the great birds of prey in order that they may take advan- tage of the least breath of wind . and may cover enough space find their prey . dented by reason of ...
... birds , such as the petrel and frigate birds ; the others have been given to the great birds of prey in order that they may take advan- tage of the least breath of wind . and may cover enough space find their prey . dented by reason of ...
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acre alfalfa American automobile average ball Batik birds building built bushels canal cent Chicago coal color Colorado concrete construction cost crop cylinder dollars eggs electric engine fact factory farm farmer feet fire firebox five four fruit gasoline glacier growers guinea pigs heat hobble skirt horse hundred inches invention Keokuk land light lobster locomotive loess Los Angeles machine manufacture match ment method miles million motor muskeg operation orchard ostrich phossy jaw photograph plant pounds produced Quebec bridge railroad result river road rock saving ship side speed station steel stream Tampico telegraphy tenant thing thousand tion tons town trains trees tricity truck Tuxpan River twenty Valley vanadium West white phosphorus wings wire wireless York