Word: wingspans
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These dragonflies—which Shang said have a wingspan of about 3 centimeters—are part of the broad category of micro air vehicles that Shang described as “small, maneuverable things to go into dangerous situations...
...hangar outside Zurich, engineers are paring away at the obstacles to a very 21st century challenge: flying a plane around the world powered by nothing but the rays of the sun. If the Solar Impulse project goes to plan, in 2011 a gangly aircraft with the wingspan of an Airbus A380 and the weight of a compact car will attempt to circle the globe in about a month at an average speed of 43 m.p.h. (70 km/h), landing only five times along...
...Solar Impulse with interest, since it offers a rigorous testing platform for extracting maximal power from minimal energy. A recently unveiled prototype, HB-SIA, which will begin flight-testing next year before the larger plane is built for 2011, is a marvel of optimization. Its 200 ft. (61 m) wingspan is covered with photovoltaic cells, which convert the sun's rays into roughly the same amount of energy needed to light a large Christmas tree. That solar power drives four electric engines, and loads four lithium batteries - a quarter of the aircraft's total weight...
...faux insects, named Micro Air Vehicles (MAVs), even physically resemble insects, weighing less than a paperclip with a two- to three-centimeter wingspan. The only thing is, these micro-creatures haven’t yet left the ground...
...there still remains talent in the frontcourt to aid in Unger’s progress. Sophomore Evan Harris, with not the height but the wingspan of a seven-footer, will combine with senior Brian Darcy, a low-post offensive presence, to bolster the 4-5 rotations...