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Scientific American

April 1, 2003

1 min read

A Tale of Two C's

Gravity speed test raises some relativistic eyebrows

By George Musser

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George Musser is a contributing editor at Scientific American and author of Putting Ourselves Back in the Equation (2023) and Spooky Action at a Distance (2015), both published by Farrar, Straus and Giroux. Follow him on Mastodon @gmusser@mastodon.social, Bluesky @gmusser.bsky.social and Threads @georgemusserjr@threads.net

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This article was originally published with the title “A Tale of Two C's” in Scientific American Magazine Vol. 288 No. 4 (April 2003)

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