This and other flying insects have plagued the worlds of science and engineering ever since the first calculation of bumble-bee flight was attempted at Göttingen University in the 1930s. Conventional aerodynamics suggested the insect should not generate enough lift to fly. The sums caused consternation.
In the past few years, however, remarkable advances have been made. The so-called “bumble-bee paradox” was solved by Dr Charles Ellington and colleagues from Cambridge University when, with the help of a robot insect, they highlighted the bee’s secret: extra lift is generated during a downstroke by a spiral vortex that travels along the leading edge of each wing, from base to tip.
Related: Incredible Insects - World’s Lightest Flying Robot - Autonomous Flying Vehicles
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July 20th, 2007 at 7:02 pm
“Recreating a fly’s efficient movements in a robot roughly the size of the real insect was difficult, however, because existing manufacturing processes couldn’t be used to make the sturdy, lightweight parts required…”