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The 140 Best Twitter Feeds of 2013

Every year, TIME recognizes those who exemplify the very best wit and wisdom Twitter has to offer. Here are the 140 feeds that inspire us to laugh, learn or shake our heads in wonderment.

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Science

Mariette DiChristina

By @rebeccarnelsonMarch 20, 2013

[tweet https://twitter.com/mdichristina/status/299870814206046208]

The editor in chief of Scientific American magazine curates and retweets science news from around the world.

Follow @TIME & tell us what you think of our list using hashtag #Twitter140

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