In 2002, nuclear engineers Rusi P. Taleyarkhan of Purdue University and Richard T. Lahey Jr. of Rensselaer Polytechnic Institute announced that they had produced thermonuclear fusion by imploding tiny deuterium-rich gas bubbles with sound waves and neutrons. The news about their fusion method--dubbed sonofusion--made headlines worldwide. Yet many skeptics greeted it with scoffing. Now, after repeating the experiments with an improved apparatus, Taleyarkhan and Lahey have more convincing evidence.
In the May 2005 issue of IEEE Spectrum, they discuss their latest experiments in detail and also explain how they plan to turn their tabletop apparatus into a full-scale electricity-generating device. "If this proves possible--and its still a big if--sonofusion could become a revolutionary new energy source," they write.
They also say that other groups may soon have new findings to confirm that sonofusion works. "Now at least five groups--three in the United States and two in Europe--are working on reproducing our sonofusion results," they write. "Some have apparently already succeeded and are now preparing to publish their findings."
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The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.
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Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".
Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...
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