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Outreach

http://physicsbuzz.physicscentral.com/2013/02/turn-your-phone-into-spectrometer-for.html

http://www.aps.org/publications/apsnews/201302/scienceapp.cfm

A clever free applet and handmade device using ubiquitous iPhone (yes, Android versions are also available) cameras as spectrometers, calibrated by comparison with Hg lines in ubiquitous fluorescent tubes. This version uses a transmission grating readily obtained from $1 glasses sold by science-stuff.com (one pair of glasses makes two spectrometers). Well done, James Roche of APS Outreach.

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