ScienceDaily: Top Technology News

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• Mathematicians can conjure matter waves inside an invisible hat
• Copper-nickel nanowires could be perfect fit for printable electronics
• Ghostly gamma-ray beams blast from Milky Way's center
• Ion-based electronic chip to control muscles: Entirely new circuit technology based on ions and molecules
• 'Unzipped' carbon nanotubes could help energize fuel cells and batteries

Mathematicians can conjure matter waves inside an invisible hat Posted: 29 May 2012 03:27 PM PDT Mathematicians have devised an amplifier that can boost light, sound or other waves while hiding them inside an invisible container.

Copper-nickel nanowires could be perfect fit for printable electronics Posted: 29 May 2012 03:27 PM PDT Chemists have mixed some nickel into their recipe for low-cost copper nanowires to prevent them from turning green like old pennies. The flexible, electrically conductive nanowires conduct electricity even under conditions that break down the transfer of electrons in plain silver and copper nanowires. Films made with copper-nickel nanowires are stable and inexpensive, good candidates for printed electronics, electronic paper, smart packaging and interactive clothing, said a chemist.

Ghostly gamma-ray beams blast from Milky Way's center Posted: 29 May 2012 10:37 AM PDT As galaxies go, our Milky Way is pretty quiet. Active galaxies have cores that glow brightly, powered by supermassive black holes swallowing material, and often spit twin jets in opposite directions. In contrast, the Milky Way's center shows little activity. But it wasn't always so peaceful. New evidence of ghostly gamma-ray beams suggests that the Milky Way's central black hole was much more active in the past.

Ion-based electronic chip to control muscles: Entirely new circuit technology based on ions and molecules Posted: 29 May 2012 08:35 AM PDT An integrated chemical chip has just been developed. An advantage of chemical circuits is that the charge carrier consists of chemical substances with various functions. This means that we now have new opportunities to control and regulate the signal paths of cells in the human body. The chemical chip can control the delivery of the neurotransmitter acetylcholine. This enables chemical control of muscles, which are activated when they come into contact with acetylcholine.

'Unzipped' carbon nanotubes could help energize fuel cells and batteries Posted: 27 May 2012 12:38 PM PDT Multi-walled carbon nanotubes riddled with defects and impurities on the outside could replace some of the expensive platinum catalysts used in fuel cells and metal-air batteries, according to scientists.

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