crayons
Self confessed geek and photographer Mark Meyer makes images that "narrate, persuade, inspire and inform". He wanted to know the exact colours present in his pack of crayons. What to do then, but put them through a spectrophotometer?
Mark says:
These questions have been nagging me since kindergarten and this weekend I finally got to the bottom of it. I am now able to answer that age-old question: what really is the difference between green-yellow and yellow-green?
Many more nerdy charts and breakdowns at Mark's website.