Thursday, October 1, 2009

Fraunhofer Lines, Mexican Turnip Tops Search Trends


What are Fraunhofer lines? It’s what you see above. According to Wikipedia:

In physics and optics, the Fraunhofer lines are a set of spectral lines named for the German physicist Joseph von Fraunhofer (1787–1826).

The lines were originally observed as dark features (absorption lines) in the optical spectrum of the Sun.

And what about Mexican Turnip? Well, Wikipedia has the answer too:

Mexican Turnip is the name of a native Mexican vine, although the name most commonly refers to the plant’s edible tuberous root.

It is one species in the genus Pachyrhizus that is commonly called yam bean and jicama. The other, major species of yam beans are also indigenous within the Americas.

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