It could be that the ZigBee wireless networking spec is just the ticket for those who want to use technology to simplify every aspect of their lives. The 150-plus members of the ZigBee Alliance tout all sorts of applications for IEEE 802.15.4, which was finalized last year. There's been an onslaught of chip unveilings since then. Some predict those chips will see their first usage in industrial applications, while many predict that consumer products from lamps to refrigerators will be the first big market.
Alliance Chairman Bob Heile is in the latter group, feeling that consumer volumes will help give industrial users the assurance that the technology is reliable. Among his many predictions for new products, he thinks the trends toward exotic footwear and health awareness will prompt the creation of ZigBee shoes that send information to an exercise monitor. They will factor in distance and the terrain being traversed to give serious runners instant input on heart rates and calorie counts. ZigBee could even provide an incentive for completing the workout. "The shoe could send a message to the refrigerator when you return home, locking the door if you haven't completed your workout," Heile jokes. www.zigbee.org
Conventional wisdom holds that MIT, Cal Tech, and Stanford are three of the country’s best undergraduate engineering schools. Unfortunately, when conventional wisdom visits the topic of best engineering schools, it too often leaves out some of the most distinguished programs that don’t happen to offer PhD-level degrees.
Airbus Defence and Space has 3D printed titanium brackets for communications satellites. The redesigned, one-piece 3D-printed brackets have better thermal resistance than conventionally manufactured parts, can be produced faster, cost 20% less, and save about 1 kg of weight per satellite.
A group of researchers at the Seoul National University have discovered a way to take material from cigarette butts and turn it into a carbon-based material that’s ideal for storing energy and creating a powerful supercapacitor.
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