Archive: 08/08/2011

Heavy metal -- in and around the lakes

Heavy metal pollution of lakes has a seriously detrimental impact on people and ecosystems that rely on such bodies of water. According to a study published in the current issue of Interdisciplinary Environmental Review, ...

dateAug 08, 2011 in Environment
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A photon’s point of view

From a photon’s point of view, it is emitted and then instantaneously reabsorbed. This is true for a photon emitted in the core of the Sun, which might be reabsorbed after crossing a fraction of a millimetre’s distance. ...

dateAug 08, 2011 in Space Exploration
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The Milky Way's supermassive black hole

Supermassive black holes - objects with masses of millions or even billions of suns - are found at the nuclei of galaxies. Our Milky Way galaxy, for example, has a massive black hole at its core, albeit one that is relatively ...

dateAug 08, 2011 in Astronomy
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Australia's Antarctic claim 'at risk'

Australia holds the largest claim to Antarctica but risks losing it in any race to unlock the frozen continent's potentially vast mineral and energy resources, an influential thinktank said Monday.

dateAug 08, 2011 in Earth Sciences
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