As Scientific American celebrates 175 years, see how the face of the magazine has changed. This interactive features the colorful covers of all issues published from August 1845 through December 2019. Check it out and let us know which one is your favorite: https://bit.ly/34HWNOz | Scientific American

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Scientific American began publishing in August 1845, and 175 years later we’re still bringing you the most fascinating and important stories in science. | Scientific American

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