The color makeup of a fluorescent light, imaged through a spectrometer made of
folded paper and a chunk of DVD. You can print and fold your own for free
following the instructions here [http://publiclab.org/wiki/foldable-spec] (they
also have a kit [http://store.publiclab.org/products/foldable-mini-spectrometer]
, which
![(Untitled)](/content/images/size/w795/4238db3de204fd0d14a8a2d66f54a36b/tumblr_n4nkjtoGWc1spzrmao1_1280.jpg)