June 15th, 2006

red panda eating bamboo

No wonder I'm always so tired

via the Exploratorium newsletter
http://www.exploratorium.edu

DID YOU KNOW?
...that your fingernails grow at the rate of about one nanometer per second?
A nanometer (nm) is one-billionth of a meter-about the width of an average
molecule. For comparison, a human DNA molecule is about 2.5 nanometers wide,
while a strand of human hair can be 50-100,000 nm in diameter.
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