Afghanistan's natural resources include significant deposits of metals such as gold, silver, copper and zinc; precious and semi-precious stones including lapis, emerald and azure; and coal, natural gas and oil. Accurate geological surveys of the country's mineral resources are crucial to locating deposits and advising potential investors, but the AGS has seen decades of decay and neglect.
Michael Watts, an analytical chemist with the British Geological Survey, is deputy leader of a team that has just left for Afghanistan to install a geochemistry laboratory. ‘We have to take a very pragmatic, low-tech approach,’ Watts told Chemistry World magazine. ‘We are establishing a very basic infrastructure.’ The main piece of equipment for the laboratory will be a spectrophotometer, used to test water for the presence of zinc, nickel and copper.
If the AGS can start to function efficiently once again, the future is potentially bright: donors such as the World Bank are waiting in the wings with substantial investment to help develop Afghanistan’s mineral trade.
Read the whole story here: http://www.rsc.org/chemistryworld/News/2007/May/24050701.asp
Michael Watts can be contacted while in Afghanistan by email: firstname.lastname@example.org
Also in this issue:
How green is ‘green chemistry’? Some chemistry enthusiastically labelled as green may be nothing of the kind, warn researchers who worry that mediocre – if well-meaning – science is damaging their subject.
Read the whole story here: http://www.rsc.org/chemistryworld/News/2007/May/25050701.asp
China’s battle with fake drugs: Chemistry World joins counterfeit pharmaceuticals investigator Gao Jingde, who is fighting the rising tide of fake or substandard drugs which, according to one estimate, claim up to 300,000 Chinese lives a year.
Read the whole story here: http://www.rsc.org/chemistryworld/News/2007/May/18050701.asp
Plus: As companies and consumers face a 1 July deadline to comply with the EU’s Waste Electrical and Electronic Equipment (WEEE) regulations – covering everything from televisions to fridges, computers to pinball machines – we look at the chemistry that is helping to beat e-waste. (feature article on request)
Brian Emsley | alfa
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Climate change: In their old age, trees still accumulate large quantities of carbon
17.08.2017 | Universität Hamburg
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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