Thursday, March 26, 2009
Thursday, February 19, 2009
fungi
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*fungi does not make its own food.
*they are decomposers.
*athletes foot is a common fungus.
*fungi does not make its own food.
*they are decomposers.
*athletes foot is a common fungus.
plants
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*members of this kingdom are eukaryotic and autotrophs.
*they store extra calories as starch.
*the first plants were small and dependent on water for fetilization.
*organism that carries out photosynthesis.
*members of this kingdom are eukaryotic and autotrophs.
*they store extra calories as starch.
*the first plants were small and dependent on water for fetilization.
*organism that carries out photosynthesis.
Thursday, February 12, 2009
physics of whipped cream
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Whipped cream performs this rapid changing act because of a phenomenon called "shear thinning." When part of the foam is forced to slide or "shear" past the rest of the foam, the foam "thins." It becomes less like honey and more like water, allowing it to flow easily until the shearing stops.
Above: The thumbnail-sized patch of "window screen" suspended between the electrodes is the paddle that stirred the CVX-2 xenon sample.
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