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More than a hundred years of growth data on individual plants has been digitized by a team of researchers at the University of Arizona’s Tumamoc Hill. The team has made this data available for study by people around the globe.
Humans keep track of our vast social networks by using special memory tricks that cheat complexity, rather than using routine memorization, according to a new Cornell University study.
- A pivoted catch designed to fall into a notch on a ratchet wheel so as to allow movement in only one direction (e.g. on a windlass or in a clock mechanism), or alternatively to move the wheel in one direction.