Chemistry is like a toolbox. To synthesize pharmaceuticals, plastics or dyes, chemists reach for various reagents and methods like craftspeople reach for their tools. Scientists from the Max-Planck-Institut für Kohlenforschung in Mülheim an der Ruhr have now presented a new chemical tool that facilitates an important synthesis step, hydrocyanation, in a safer manner than the conventional method.
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.
Lithium-ion batteries gained popularity in the 1990s, and have lead to the replacement of nickel-metal hydride batteries. Today Li-ion batteries power numerous electronic gadgets, such as mobile, laptops, and tablets.
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.
The promise of high conversion efficiency with lower cost has put perovskite solar cells under intense research in the field of photovoltaics.
The research group of Professor Hideo Ohno and Associate Professor Shunsuke Fukami of Tohoku University has studied the control of magnetization using a current applied to heterostructures comprising an antiferromagnet.
When exposed to changes in temperature the shape of polymers often visibly change. New research, led by chemical engineering professor Mitch Anthamatten at the University of Rochester, has led to the development of a material capable of changing shape when exposed to body heat alone. This research paves the way for unique medical and other applications.
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.
The most widely used construction material is concrete, and its production is a leading source of greenhouse gas emissions. However, some basic questions on this common construction material relating to its microscopic structure and behavior have remained unanswered.
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