On the Soaring of Birds
Abstract
IT is a pity that so many of your correspondents on this subject fail to grasp the elementary and self-evident fact that no common horizontal movement, relatively to the surface of the earth, of the air in which a bird is immersed can by any possibility enable it to soar. Upward convection-currents and upward slants may have something to do with the question, as may also the existence of different horizontal currents.
- Publication:
-
Nature
- Pub Date:
- November 1890
- DOI:
- 10.1038/043008e0
- Bibcode:
- 1890Natur..43....8G