ScienceDaily: Top Technology News

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• Magnesium oxide: From Earth to super-Earth
• Undisturbed excitation with pulsed light
• Transforming 'noise' into mechanical energy at nanometric level
• Engineers pave the way towards 3-D printing of personal electronics
• Capturing living cells in micro pyramids

Magnesium oxide: From Earth to super-Earth Posted: 22 Nov 2012 12:29 PM PST The mantles of Earth and other rocky planets are rich in magnesium and oxygen. Due to its simplicity, the mineral magnesium oxide is a good model for studying the nature of planetary interiors. New work studied how magnesium oxide behaves under the extreme conditions deep within planets and found evidence that alters our understanding of planetary evolution.

Undisturbed excitation with pulsed light Posted: 22 Nov 2012 06:54 AM PST The best method to obtain the most precise information on the inner structure of atoms and molecules is to excite them by means of resonant laser light. Unfortunately, just this laser light (above a certain intensity) can lead to measurable modifications within the atom's electron shell. Scientists have now shown experimentally how to prevent such "light shifts." This confirms the advantages of "hyper" Ramsey excitation that had already been predicted theoretically.

Transforming 'noise' into mechanical energy at nanometric level Posted: 22 Nov 2012 06:53 AM PST Scientists have developed a method that enables efficiently using the random movement of a molecule in order to make a macroscopic-scale lever oscillate.

Engineers pave the way towards 3-D printing of personal electronics Posted: 21 Nov 2012 06:01 PM PST Scientists are developing new materials which could one day allow people to print out custom-designed personal electronics such as games controllers which perfectly fit their hand shape.

Capturing living cells in micro pyramids Posted: 21 Nov 2012 10:07 AM PST Imagine a field full of pyramids, but on a micro scale. Each of the pyramids hides a living cell. Thanks to 3-D micro- and nano scale fabrication, this is possible and there are promising new applications in the offing. One of them is applying the micro pyramids for cell research: thanks to the open 'walls' of the pyramids, the cells can interact.

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