Flying at no mechanical energy cost: disclosing the secret of wandering albatrosses.
Flying at no mechanical energy cost: disclosing the secret of wandering albatrosses.
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DOI:
10.1371/journal.pone.0041449
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Bonadonna F
中科院分区:
文献类型:
--
作者:
Sachs G;Traugott J;Nesterova AP;Dell'Omo G;Kümmeth F;Heidrich W;Vyssotski AL;Bonadonna F
Albatrosses do something that no other birds are able to do: fly thousands of kilometres at no mechanical cost. This is possible because they use dynamic soaring, a flight mode that enables them to gain the energy required for flying from wind. Until now, the physical mechanisms of the energy gain in terms of the energy transfer from the wind to the bird were mostly unknown. Here we show that the energy gain is achieved by a dynamic flight manoeuvre consisting of a continually repeated up-down curve with optimal adjustment to the wind. We determined the energy obtained from the wind by analysing the measured trajectories of free flying birds using a new GPS-signal tracking method yielding a high precision. Our results reveal an evolutionary adaptation to an extreme environment, and may support recent biologically inspired research on robotic aircraft that might utilize albatrosses' flight technique for engineless propulsion.
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影响因子:
2.8
作者:
Hahn, TP;Sockman, KW;Morton, ML
通讯作者:
Morton, ML
影响因子:
2.1
作者:
Sachs, G
通讯作者:
Sachs, G
影响因子:
3.7
作者:
Suryan, Robert M.;Anderson, David J.;Nakamura, Noboru
通讯作者:
Nakamura, Noboru
DOI:
10.1098/rstb.1982.0158
发表时间:
1982-01-01
期刊:
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES B-BIOLOGICAL SCIENCES
影响因子:
--
作者:
PENNYCUICK, CJ
通讯作者:
PENNYCUICK, CJ
影响因子:
64.8
作者:
JOUVENTIN, P;WEIMERSKIRCH, H
通讯作者:
WEIMERSKIRCH, H