efficiency in photos
Photos: US military puts 'bat' spies in the sky…
Photo University of Michigan researchers plan to develop quantum dot solar cells to double the efficiency of the current model. The US Army wants a six-inch spy plane to gather data on sights, sounds and smells in urban combat areas. [17 Mar 2008]
Photos: BlackBerrys on the beat
Photo West Yorkshire Police, pictured here, is another force which uses the BlackBerry, with the force estimating its use has resulted in £8.8m in efficiency savings and saved 145-hours per front-line officer per year. [08 Feb 2008]
Photos: The solar powered speedster
Photo The best option for sun-powered racers are space-grade solar arrays - made from rejected satellite solar cells - which have a conversion efficiency rate of about 30 per cent, about double that of cheaper terrestrial silicon cells. [16 Jun 2008]
Photos: Six unusual power sources
Photo However, Spies is hopeful the technology's efficiency will improve, making thermo-generators for mobile devices a future possibility. Scientists are coming up with novel ways to power gadgets - including using body heat and even dung. [19 Nov 2007]
Photos: Scottish NHS trials video checkups
Photo Dr Webster said: "This system will improve efficiency. The Scottish Centre for Telehealth (SCT) in Aberdeen Royal Infirmary (ARI) is trialling video conferencing technology from Cisco, called HealthPresence. [08 Feb 2008]
Photos: Five unusual data centres
Photo Sun claims the 'Blackbox' virtualised data centre is greener and cheaper than an average set-up, with 20 per cent more energy efficiency than a traditional air-con cooled centre and only costing around €500,000. [25 Jul 2007]
Photos: Say hello to Intel's little helpers
Photo Intel is making strides to improve the energy efficiency and the carbon footprint of its products. With two cameras on its hand, the device is able to autonomously recognise cups on the table, pick them up, and place them in the dishwasher. [18 Jun 2008]
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