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Protesters in Berkeley, CA, February 1, 2017 (Elijah Nouvelage/Getty Images)

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A drawing by Isaac Newton of his telescope next to a statue of him at the Royal Society in London, November 24, 2009 (Peter Macdiarmid/Getty Images)
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British economist Daniel Ricardo (Hulton Archive/Getty Images)

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The U.S. Supreme Court is pictured June 27, 2018 (Zach Gibson/Getty Images)

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(Photo credit: Frank Martin/BIPs/Getty Images)
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Surgeons performing open heart surgery in modern operating room (Thierry Dosogne)