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.
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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Comments
I'd have to hold my hand very very VERY still, though.
Semirelated thought. Light propagates on the order of a nanometer a second.
In a vacuum it's more like taking 3 nanoseconds to travel a meter.
(And I *did* say I'd have to hold my hand very very VERY still ;-) )