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nano

Posted: Thu Sep 18, 2014 11:29 pm
by David McWethy
According to Diane Ackerman, ("The Human Age: The World Shaped By Us")
'Nano,'...applies to things one-billionth of a meter long. In nature that's the size of sea spray and smoke. A strand of hair is 80,000 to 100,000 nanometers wide, roomy enough to hold 100,000 perfectly machined carbon nanotubes [!!!] (which are 50 to 100 times stronger than steel at one-sixth the weight)....About 500,000 nanometers would fit in the period at the end of this sentence, with room left over for a rave of microbes and a dictator's heart.
If the thought of 100,000 perfectly machined carbon nanotubes doesn’t make your eyes water, try reading that passage again!

As Dr. G. has pointed out, one of the enunciated purposes of this site is to
“…tell a story about us and where we come from, how we really think, what we are currently up to”
and offhand I can't think of a word that better illustrates that criterion.

Re: nano

Posted: Sun May 24, 2015 9:57 pm
by Slava
I finally decided to look deeper, and what do I find? Nano comes from the Greek for dwarf. I always thought of them as a bit above waist high, not a billionth of my size. :shock: