John Hart, a professor at the University of Michigan, has created a super-small tribute to President-elect Obama using 150 million nanotubes. (Each one is less than a millimeter in diameter and can only be seen through a microscope.)
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That's hard to say. The lake is never the same temperature throughout. If your talking surface...
what is the coldest lake superior has ever beeb??
Why won't they be at the top of the food chain/ web?
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What does nontubes mean??? sounds cool tho.
Here's the wikipedia entry on carbon nanotubes. Don't be intimidated: the hardest bit to wrap your mind around is how small these things are.
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