Telstra has revealed the addition of almost one million new mobile services in the six months to December 2011, but Sensis revenues plummeted 24 percent in 12 months.
A nanotechnology-based electronic sensor able to detect trace gases has been successfully tested in space by NASA, opening a door to smaller and more capable air quality and smoke detectors to protect future astronauts.
"The nanosensor worked successfully in space," said principal investigator Jing Li, a scientist at NASA's Ames Research Center. "We demonstrated that nanosensors can survive in space conditions and the extreme vibrations and gravity change that occur during launch," she said.
The sensors comprise carbon nanotubes coated with materials sensitive to a particular contaminant. When a trace of that substance touches the sensor, the chemical reaction causes an electric current to flow.
The test involved exposing a chip with 32 nanosensors to nitrogen gas containing 20 parts per million of nitrogen dioxide. The rig was taken into space abord the US Naval Academy's MidSTAR-1 satellite.
The advantages of the nanosensor include its small size, low cost, low power consumption and durability.
David Bass
| For the fourth year in a row, IDC has placed content security provider Websense (NASDAQ: WBSN) at the top of the IDC Worldwide Web Security 2011 –…
How to Make Business Discovery Work for Your Business
Business Discovery takes its cues from consumer apps. Like Google, it encourages us- ers to hunt for and explore data without worrying about or even noticing the underly- ing technology. Their entire experience is working within an intuitive interface to get real-time, self-service results with only minimal training. ...more
Try an easy-to-use set of web-enabled
tools for business-class productivity services. Office 365 provides
anywhere-access to email, important documents, contacts, and calendars
on almost any device.
