What is this close-up picture? (WotsThat: Book page paper fibres)

Question

What object is shown in this zoomed-in close-up photo?

ChromeWarden · Accepted Answer

Book page paper fibres. Most book paper is made from wood fibers that are chemically broken down and then reassembled, but here's the wild part: the paper in your favorite novel is technically weaker than the original wood because the process strips away some of the natural binding substances that held those fibers together. That's why old books become brittle over time, while a tree can survive for centuries.

Answer: Book page paper fibres

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