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Scientists create a four-winged robot insect that flies with grace
It's difficult to make an insect-like flying robot -- realistic four-winged bots are typically too heavy, while lighter two-winged models tend to fly erratically. USC researchers have edged one step closer to the dream machine, however. They've created Bee+, a four-winged bot (pictured at right) that flies with more of the agility and poise of real insects while weighing just over 0.003oz. The trick was to drop earlier bimorph actuators, cantilevers made of two layers of piezoelectric material with a passive layer in between, with unimorphs that only have one piezoelectric layer. The four actuators combined weigh half as much as bimorphs would at just under 0.002oz, reducing the wing loading and significantly improving control.
ICYMI: Mars life, bendy smartphone screens and more
#fivemin-widget-blogsmith-image-427843{display:none;} .cke_show_borders #fivemin-widget-blogsmith-image-427843, #postcontentcontainer #fivemin-widget-blogsmith-image-427843{width:570px;display:block;} try{document.getElementById("fivemin-widget-blogsmith-image-427843").style.display="none";}catch(e){}Today on In Case You Missed It: It's Space Week, and today's celestial story is an earth-bound look at what a colony of humans would have to endure on Mars. People from Hawaii's Space Exploration Analog and Simulation group just finished an eight month camp-out, cut away from society and only allowed outside when clad in space suits. Not so spacey but equally fascinating, MIT scientists figured out a bendable smartphone display's chemistry. And wearable product company Lumo announced new running shorts that aim to fix your body mechanics when pounding pavement.
