In contrast, wing propelled birds (e.g. alcids and penguins) utilize lift from the wings for forward thrust, and this is considered to be a more energetically efficient form of propulsion [12] [13].
News stories from this period were heavily hinting that the left- wing unions propelling Sweeney to the top had been close to picking Richard Trumka of the radicalized United Mine Workers and that Sweeney felt he needed some solid leftist connections.
Virginia Rails are agile on their feet and most often escape danger by running, but they may also dive and swim, using their wings to propel themselves underwater.
In it he built a large pair of feathered wings and propelled himself through the air by means of them while suspended on cables.
The MirageDrive pedal mechanism is connected to two underwater flippers, much like penguin wings, that propel the kayak faster than a traditional paddle.
The great auk was generally an excellent swimmer, using its wings to propel itself underwater.
Exhibits and a video tell you about the marine animals whose massive wings, which propel them through the water, can span 20 feet.
Generally we think of birds moving in a fairly conventional manner: flapping their wings to propel their hollow boned bodies through the air.
In feeding, the bird "hydroplanes," skittering across the water with its wings out and propelling itself with its feet as it dips its bill into the water for small marine invertebrates, such as squid and crustaceans.
Rossy, nicknamed FusionMan, had flung himself out of a plane 2,500 metres (8,200ft) above Calais and fired up four jet turbines on his carbon fibre wing which propelled him towards the white cliffs of Dover and a place in the record books.
PAGE B5 TV Guide Listings for Sale B5 Qantas Merger Talks Ended B8 OBITUARIES PAUL M. WEYRICH, 66 A conservative activist whose iron principles, articulate fervor and organization-building skills were instrumental in propelling the right wing of the Republican Party to power and prominence in the 1980s and '90s.
