An active variable stiffness vibration isolator has been developed by researchers from HRL Laboratories’ Sensors and Materials Laboratory. This isolator is capable of millisecond actuation times and 100x stiffness changes, independent of the static load. In the words of Principal Investigator Christopher Churchill, “This performance surpasses existing mechanisms by at least 20 times in either speed or useful stiffness change."
A new method of developing polarizers, devices which rotate the plane of light, has been developed which mimics the way shrimps polarize light. Whilst humans use polarizers in sunglasses and DVD players shrimp have been using them to communicate without having to worry about any prey eavesdropping on their conversation.
A new performance fabric, which actively responds to the wearers body temperature and perspiration levels, has been created by weaving a layer of bacteria over traditional fabric.
Using a special high-pressure chamber, scientists have discovered two new iron oxides in experiments at DESY's X-ray light source PETRA III and other facilities. The discovery points to a huge, hitherto unknown oxygen source in the lower mantle of the Earth. The team led by Dr. Elena Bykova from the University of Bayreuth reports its results in the scientific journal Nature Communications.
Forming the high-quality crystals required for X-ray analysis of the structure of biological molecules is often the most difficult part of taking atomic-resolution images. Using the world's brightest X-ray source, at the Department of Energy's SLAC National Accelerator Laboratory, researchers have demonstrated that sharp images are obtainable, even with imperfect crystals.
The phenomenon of X-ray diffraction by crystals was discovered more than a century ago, and since then it has been a preferred technique for structure determination. It has established its presence in structural research in the fields of biology, and material science. However, many materials whose structures are unknown, do not easily crystallize as three-dimensional structures.
A design for a coiled acoustic metasurface, capable of realizing total acoustic absorption in ultralow frequencies, has been produced by researchers working at the French National Centre for Scientific Research, CNRS, and the University of Lorraine.
Rapid freezing of any liquid or even liquid metal leads to the formation of glass. Materials science research is currently focusing on metallic glasses or vitrified metals that have been formed by swiftly cooling alloys of a wide range of metals such as magnesium, copper, titanium, palladium, zirconium, and iron.
Pollens hold promise for potential application as anodes in lithium-ion batteries, according to a team of researchers from the Purdue University.
Scientists at the University of Liverpool have shown that it is possible to design and construct interfaces between materials with different structures by making a bridge between them.
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