ScienceDaily Posted February 25, 2013 Share Posted February 25, 2013 As of today, the Wikipedia entry for the hummingbird explains that the bird's flight generates in its wake a single trail of vortices that helps the bird hover. But after conducting experiments with hummingbirds in the lab, researchers propose that the hummingbird produces two trails of vortices -- one under each wing per stroke -- that help generate the aerodynamic forces required for the bird to power and control its flight. Read the full article on ScienceDaily Link to comment Share on other sites More sharing options...
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