What is it?

Is it... A. Shag carpeting from the 1970s? B. The surface of a cat's tongue? C. The surface of the sun? D. A French impressionist painting from the 1860s? E. A map of magnetic field lines in a portion of the Precambrian Canadian Shield? Click here for the answer.

Good observations

Scientists don't have to be right on everything to make a lasting contribution. Good observations tend to endure longer than interpretations. From Winter, J.D., An Introduction to Igneous and Metamorphic Petrology, p. 424. This is from Chapter 21: "An Introduction to Metamorphism," and referred to the 19th-20th century geologist George Barrow, who first described metamorphic …

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