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Tag Archives: drag

Smile! Dimples boost your mileage

By Sid Perkins / May 27, 2013

This teen’s wind tunnel tests showed that dimpling the surface of trucks could greatly reduce drag from friction. Patrick Thornton, SSP

Trucks covered with tiny indentations, like those on golf balls, experience less friction

Posted in Physics, Technology & Engineering, Young Scientists | Tagged Daniela Jimenez, dimples, drag, Energy efficiency, friction, getinvolved, golf balls, Intel, International Science and Engineering Fair, ISEF, Mexico, mileage, Preparatoria del Tecnologico de Monterrey, trucks, VORTEX, Zapopan

Four-winged dinosaur

By Stephen Ornes / November 12, 2012

dino_feature

Hind wings helped a small dino make tight turns in midair

Posted in Dinosaurs & Fossils | Tagged Adaptation, aerodynamics, biology, dinosaurs, drag, evolution, fossils, getinvolved, Justin Hall, Luis Chiappe, Michael Habib, Microraptor gui, Natural History Museum of Los Angeles County, physics, topstories, University of Southern California, wings