Litchfield, Isaac W, Massachusetts Institute of Technology. Society of Arts · Boston, Mass. : The Society · leaf 140
the upwardly the birds do. It may be that in the dis- deflected current from some hill or other tant future we may develop in us a sense prominence. which will enable "us to "feel" the invis- This, too, explains why sea gulls can ible currents of rising air, but I very much TYPICAL WWC SECTION. ^^… … follow an ocean liner without flapping. the impression that if they themselves The air is rising from the stern of the boat ^en.t UP> they would probably be in a because it is heated, and the gulls soar panic of tear. in this rising current of hot air. It is Nothing is further from the case. I…
Science
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