A method to synthesize the first binary compound of oxygen and krypton - a krypton oxide, has been formulated by a team of theoretical chemists at the Institute of Physical Chemistry of the Polish Academy of Sciences. It has been discovered that this unusual substance can be produced even in the existing laboratories using very high pressure.
Perovskite has a hexagonal or rhombohedral structure with formula ABO3, while still belonging to the R3c space group (number #161). They possess ferroelectric, piezoelectric, and superconducting properties and are often used in applications of functional devices.
University of Oregon (UO) researchers have discovered the secret behind the mimicry used by Dracula orchids to attract flies and guarantee their survival, using a 3D printer to spoof the flies.
Gather your patience and put the old “a watched pot never boils” saying to the test. The experience might rival watching paint dry, but of course the water will eventually begin to boil. When it does, you’ll see a flurry of bubbles form and quickly rise to the surface of the water. Once it kicks in, it builds at a furious pace and quickly creates a roiling cauldron on your stovetop. Time to add the pasta.
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.
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