Monday, August 3, 2009

Random and interesting stuff

Just saw a documentary about some Spanish researchers who were trying to measure the pollution level around a factory. They collect moss samples and analyze them, because moss absorbs a lot of pollution and heavy metals. The amazing part was to see moss being attracted by a magnet due to the high concentrations of heavy metals. Of course, iron must be the responsible for the amazing effect, due to its high magnetic permeability.
Another interesting thing was to see that there is a parking lot in Spain which is using a vertical garden on the extraction ventilation of a parking lot to absorb part of the pollution (something like this). The plants absorb CO2 and the bacteria absorb some of the chemicals on the fumes.

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