The lowly, ill-regarded tumbleweed might be good for something after all.
A preliminary study reveals that tumbleweeds, a.k.a. Russian thistle, and some other weeds common to dry Western lands have a knack for soaking up depleted uranium from contaminated soils at weapons testing grounds and battlefields. "There is some use to what we consider noxious weeds," said geologist Dana Ulmer-Scholle of the New Mexico Institute of Mining and Technology in Socorro.
Depleted uranium (DU) is used in armor-piercing munitions. Although it produces only a low level of radiation, the metal poses a hazard in soils because it – like some other heavy metals – is toxic if ingested. Other plants have been known to draw out DU from soils in wetter climes "but no one wanted to try doing it in arid regions," said Ulmer-Scholle.
Ann Cairns | EurekAlert!
'Quartz' crystals at the Earth's core power its magnetic field
23.02.2017 | Tokyo Institute of Technology
NASA spies Tropical Cyclone 08P's formation
23.02.2017 | NASA/Goddard Space Flight Center
In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport
Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...
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.
The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...
Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...
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...
13.02.2017 | Event News
10.02.2017 | Event News
09.02.2017 | Event News
23.02.2017 | Physics and Astronomy
23.02.2017 | Earth Sciences
23.02.2017 | Life Sciences