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Width of a hair

Author:Mikko Rahikka
A hair of a young man. Laser 632,8 nm. Look my blog at http://hylblog.edu.hel.fi/wpmu/mrahikka/2013/05/17/hiuksen-paksuus/ The photo was taken 207,7 cm from the interference figure.
My blog http://hylblog.edu.hel.fi/wpmu/mrahikka/2013/05/17/hiuksen-paksuus/

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