The Netherlands issued 10 nondenominated "1" stamps on 20 April 2011 to mark the 75th anniversary of the Netherlands Society for Microbiology. The various microscopic life forms harnessed by human featured on the stamps include yeast (Saccharomyces cerevisiae) for fermentation in wine production, lactic bacterium (Lactococcus lactis) for making cheese from milk, rhizobium that provides nitrogen for planting, Anammox (short for ANaerobic AMMonium OXidation) bacteria for rendering waste water harmless, bacteriophage that kills harmful bacteria, penicillium for production of penicillin, methonosarcina for production of methane gas (biogas), marine green algae, Tetraselmis suecica, for production of biodiesel, Aspergillus niger (black mold) for breaking down vegetable waste into compost, and bacillus bacteria that repairs concrete by filling up cracks with lime.
Thursday, July 21, 2011
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