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Home / News / Tags / crystals
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Crystallization is the name given to the process that sees the transformation of a solution, melt or gas into solid crystals, through precipitation. The phenomenon takes place relatively slow when compared to other types of chemical reactions, and scientists have recently discovered one of the reasons for that. It wo... |
21 November 2009
06:00 GMT |
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An Italian team argued some time ago that it had discovered dark matter, in a statement that shocked the world of astrophysics. However, when other research groups wanted to replicate the experiments, they had a very difficult time doing so. It may be that they will have to reach the same conclusion as the Italians, ... |
4 November 2009
02:47 GMT |
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Experts from the University of Edinburgh, in the UK, have recently announced that very small crystals may hold the key to making the computers of tomorrow able to hold up to 100 times more data than existing systems. The team has been involved in trying to produce salt crystals in gel, using advanced laser technology... |
19 October 2009
06:06 GMT |
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Guiding light through optical fibers was never something easy to do, and the communication industry has been using photonic crystals – specially patterned materials – for the job since the early days. In mobile phones, unwanted frequencies are screened out using similar materials, called phononic crystals... |
19 October 2009
02:20 GMT |
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The beautiful depth that crystals have is one of the things that have fascinated people since the early days of civilization. Fortune tellers use it to scout the future, while some believe that the stones channel mystical powers, which can be harnessed for various purposes. But scientists have no ambition of learning... |
16 October 2009
08:44 GMT |
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One of the deepest mysteries related to modern physics is the phenomenon of high-temperature superconductivity, in which regular chemicals become superconductors at specific temperatures and pressures. In an attempt to further the scientific understanding of these processes, the US Department of Defense (DOD) awarded... |
24 September 2009
06:50 GMT |
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US Department of Energy (DOE) Ames Laboratory senior metallurgist Rohit Trivedi now has all the reasons in the world to be filled with joy. His crystal-growth experiment, which he first dreamed of more than a decade ago, is finally aboard the International Space Station (ISS), in a microgravity environment. The DECLI... |
22 September 2009
05:36 GMT |
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Scientists at the Emory University have for the first time ever imaged the interactions that take place in the fuzzy layer between crystal and liquid molecules, and were able to determine that the contact area is indeed very, very small. Details of their achievements appear in this week's issue of the respected ... |
12 August 2009
06:08 GMT |
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The study of protein structures is a very complex and delicate one, focusing on tiny formations at a very small scale. But this field of research could soon benefit from a large push forward, as researchers recently announced the development of a new laser technology, which allows the use of light pulses to grow High... |
6 August 2009
02:31 GMT |
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Experts from the University of Minnesota (UM) announce in the July 31st issue of the respected journal Science that they managed to develop a new method to create high-performance membranes out of crystal sieves called zeolites. They argue that the innovation could lead to significant advancements in the understandin... |
31 July 2009
18:01 GMT |
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Scientists at the University of Leeds in the United Kingdom recently devised a new method of harnessing the power of soldiers' marches. They created a system that allowed for the capture of the large amounts of kinetic energy that was generated when columns of servicemen walked from one point to another. The inn... |
27 July 2009
04:04 GMT |
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One of the chemicals that can be found in frozen comets wondering through space has puzzled scientists for quite some time now. While this type of comets is usually born at the edges of solar systems, and mostly contains frozen matter, it also contains tiny crystalline silicate particles, which require enormous tempe... |
15 May 2009
14:21 GMT |
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One of the greatest mysteries associated with the origin of life is how the right chemicals came to be bound together in a seemingly perfect way and then simply started to live. Amino-acids are at the base of all living creatures, but the conditions that have led to their appearance are still unclear. One researcher ... |
20 March 2009
04:15 GMT |
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The limit of diffraction that most crystal types employ has been for a long time a very difficult obstacle in the path of scientists trying to take a closer look at the atomic structure of these materials. Now, experts at the University of Illinois have managed to achieve a breakthrough in the field, by devising a me... |
19 February 2009
06:21 GMT |
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Scientists at the University of Manchester, who first discovered graphene, were also behind the creation of the new material, which differs from its predecessor through the fact that it also incorporates hydrogen atoms, which it attracts towards its ultra-thin structure. Basically, one could say that graphane, the ne... |
31 January 2009
05:01 GMT |
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A new design, devised by Haim Abramovich, a developer at the Technion-Israel Institute of Technology in Haifa, Israel, may hold the key to harnessing the power of moving vehicles to create electricity, he says. Piezoelectric crystals could be used to absorb heavy traffic and convert a 1 kilometer stretch of highway i... |
11 December 2008
03:17 GMT |
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The Spitzer Space Telescope has recently made a startling discovery as it was scouring the skies in thorough observation of five young planet-nascent disks approximately 400 light years away from the Earth. While it was largely known that crystallized dust particles constantly lump up into larger versions, ultimately... |
12 November 2008
09:33 GMT |
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Nanotechnology is full of surprises and new applications are discovered every day. One of the most unusual is the recent experiment of a team of scientists who were able to make a magnet change the color of a liquid, turning it from coffee-brown to orange, then green and finally dark blue.The liquid is actually a so... |
6 July 2007
09:02 GMT |
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For the past century, mankind reached an unprecedented degree of development that would made our ancestors consider us wizards. Technological breakthroughs are in the news everyday, new materials are created that almost defy logic, if not the laws of physics.However, nature keeps surprising us when we least expect i... |
3 July 2007
04:51 GMT |
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Apparently, a woman's inner charm is not enough to turn a few heads. Some Japanese thought it might be better to dress us in lights, or at least to give us a couple of dresses with a large number of attached LEDs, known as light emitting diodes, to be more specific.The dress allows any woman to shine in the dark... |
20 June 2007
03:07 GMT |
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A high flux isotope reactor went online after more than a year of repairs, systems checks and improvements that cost more that $70 million. It's a research reactor at the Department of Energy's Oak Ridge National Laboratory internationally recognized as a neutron source for materials studies and isotope pr... |
18 May 2007
15:36 GMT |
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Colloids have been used for over 3,000 years, since the invention of ink, but only recently have scientist been able to decipher some of their unique properties. They are heterogeneous mixtures made of tiny particles or droplets that visually appear to be homogeneous solutions, meaning that they are in fact a mixtur... |
17 May 2007
05:12 GMT |
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A new form of platinum has been produced by a research team composed of electrochemists and materials scientists, which can greatly increase the present catalytic chemical processes such as those used to catalyze fuel oxidation and produce hydrogen for fuel cells. The new nanocrystals have a "tetrahexahedral" struc... |
4 May 2007
05:41 GMT |
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Have you ever seen an ice cube with a strangely looking spike coming from it? How can a flat surface of water freeze upwards, defying gravity to form this unusual thorn?It's just physics. Water is a substance more complex than you might have thought. Besides being the absolutely necessary element for life in th... |
1 May 2007
16:31 GMT |
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Reticular chemistry deals with the ability to construct chemical structures from molecular building blocks to create new classes of materials of exceptional variety.A team of chemists from the Center for Reticular Chemistry at UCLA's California NanoSystems Institute and the departments of chemistry and biochemi... |
13 April 2007
10:34 GMT |
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Certain polymers and glasses are known to change shape when exposed to light. This is called a piezoelectric effect, and means that piezoelectric crystals, when subjected to an externally applied voltage, can change shape by a small amount, about 0.1% of the original dimension.Researchers in Japan have discovered or... |
12 April 2007
06:35 GMT |
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