Tag Archives: UV

Purifying public drinking water with UV light

News: Water Shortage    April 22, 2010
One issue is the shortage of water for human use. Another, related, issue is the even greater shortage of water that is fit to drink. Every decade the percentage of water that must be treated before it becomes potable grows – and treatment is expensive. This is a third issue. Treating large volumes of water [...]
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Life on Mars, if it exists, is below the surface

News: Exogenous Life    March 4, 2010
Is there life on Mars? We don’t know yet. If there is, it isn’t very big. In fact, if there’s (still) any life at all, it will be bacteria or something even more primitive and small. Whatever there is, it’s also not likely to be on the surface. That’s not because of the cold; it’s [...]
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First time: Watching the unfolding story of proteins in living cells

News: Proteomics    March 1, 2010
Think of looking at cells in vitro (the biologists way of saying the cells are in a Petri dish or a test tube – ‘in glass’) as watching animals in a zoo. It looks relatively natural, but it isn’t. There could be differences, perhaps important differences between the way a cell behaves in vitro and [...]
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