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Home > News > Tags > molecule
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Plastics have been around, in one form or another, for about a century now. Nowadays, they are so much a part of life and material culture that people generally take them for granted. Of course, there's been the recent unfortunate event related to its toxicity (which has been somewhat resolved) and there's ... |
28 November 2008
09:26 GMT |
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An international team of astronomers has managed to detect the presence of a sugar molecule in the outer space. The chemical compound is known to be among the few primal building blocks that form life, and thus the discovery proves to be highly important in the search for Earth-like planets where life could appear an... |
26 November 2008
10:18 GMT |
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While it is commonly accepted that life sparked from a pre-biotic state of chemical compounds that somehow mixed up in an organic form, what exactly caused this whole complex process to occur is still subject to speculation. Water and electricity (from thunders) are the two most circulated factors that appear to have... |
3 November 2008
06:43 GMT |
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As more and more activities are carried out outside the spacecrafts that provide transportation and shelter for the astronauts, their safety proves more of a concern for scientists. Perhaps, in the not-so-distant future, EVAs (extra-vehicular activities) will require longer spacewalks and actions that must ... |
24 October 2008
06:52 GMT |
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Free radicals are organic molecules that don't have the necessary even number of electrons in their composition, which makes them very unstable. They get their needed electrons from almost anything, creating other free radicals in the process. For humans, this translates in severe illnesses. Antioxidants, on the... |
15 October 2008
11:07 GMT |
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Except the case of toad toxins (which, anyway, are used as drugs by very few people), all addictive foods and drugs, from chocolate and caffeine to nicotine, heroin and cocaine, represent plant poisons. Plants normally synthesize toxins for impeding their consumption by herbivores, and this is the paradox: instead of... |
17 April 2008
03:02 GMT |
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Who would be so insane even to study such an effect? Well apparently, chemical companies find no laughing matter regarding such processes and are barely waiting to get their hands on the model followed by the water molecules during the melting process of ice. What appears to be as a well known natural process for mos... |
9 January 2008
06:56 GMT |
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If you never time up with your partner when to have sex, this means that your inner clocks are not synchronized. Many of us tune our activities after a social schedule: we wake up, work, eat, have fun, make love following the social rhythm, which many times does not correspond to our inner clocks. Inner rhythms are ... |
14 December 2007
05:26 GMT |
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The new molecule designed at the University of Virginia is the first uranium methylidyne ever reported, containing an uranium-carbon triple-bond. A methylidyne or methine as it is also known is a tri-valent functional group CH, derived from methane. The methine group consists of a carbon atom with two single bounds a... |
14 November 2007
06:13 GMT |
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A good wine's quality is the result of a combination between a sandy soil and the hot and dry summer, besides the grape variety. The strain of yeast used in the fermentation process can also give particular features of a top quality wine, like smell, color and flavor. Now, Australian chemists have come with the ... |
17 August 2007
06:37 GMT |
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There is no worse invention belonging to nature than pain. That gets even worse in the case of chronic pain, which unlike the acute pain linked with trauma, has no apparent physiological benefit and it is often called the "disease of pain". Complete and lasting relief of chronic pain is hard to achieve and often impl... |
16 July 2007
05:31 GMT |
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A new research on the smallest known piece of ice, a water hexamer, using quantum mechanics brought a real breakthrough in understanding the true nature of ice and its formation. This is the smallest piece of ice that can form on hydrophobic metal surfaces.Ice is the name given to any of the 14 known solid phases of... |
22 June 2007
09:19 GMT |
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Inserting a gene into a cell is hard work. But it is even harder when it's about a plant cell. Now a team of Iowa State University has managed to do it and to trigger the gene's expression with controlled precision by using nanotechnology, a fact that could boost it as a novel powerful tool for delivery pro... |
17 May 2007
05:14 GMT |
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Could it really be that a rapidly oscillating molecule is capable of slowing down its fall in a gravitational field, much like skydivers that increase the area of body parallel to the Earth to glide on the air current? Einstein's theory of general relativity states that the presence of matter in huge amounts (... |
2 May 2007
16:11 GMT |
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The fullerenes, discovered in 1985 by researchers at Rice University, are a family of carbon allotropes named after Richard Buckminster Fuller and are sometimes called buckyballs. They are molecules composed entirely of carbon, in the form of a hollow sphere, ellipsoid, or tube. Cylindrical fullerenes are called Car... |
24 April 2007
08:22 GMT |
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Absolute zero is the lowest possible temperature, occurring when no heat energy remains in a substance.It is the point at which molecules do not move (relative to the rest of the body) more than they are required to by a quantum mechanical effect called zero-point energy. By international agreement, absolute zero is... |
31 March 2007
04:32 GMT |
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