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Friday, July 8, 2011

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


Stardust in our backyard provides new clues to galaxy evolution

Posted: 07 Jul 2011 11:12 AM PDT

New data from Herschel Space Observatory reveal surprisingly large amounts of cold dust in the remnant of the famous supernova SN1987A, which exploded 24 years ago in the Large Magellanic Cloud, a neighboring galaxy of the Milky Way. With this discovery, astronomers confirm that supernovae are able to produce significant quantities of dust over very short time scales. This may help explain previous observations of abundant dust in the early Universe as seen in high-redshift galaxies.

Power from the air: Device captures ambient electromagnetic energy to drive small electronic devices

Posted: 07 Jul 2011 10:15 AM PDT

Researchers have discovered a way to capture energy transmitted by such sources as radio and television transmitters and cell phone networks. By scavenging this ambient energy from the air around us, the technique could provide a new way to power networks of wireless sensors or other devices.

Promising fire retardant results when clay nanofiller has space

Posted: 07 Jul 2011 08:10 AM PDT

Materials scientists have demonstrated that the more widely and uniformly dispersed nanoscale plates of clay are in a polymer, the more fire protection the nanocomposite material provides.

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