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Big pendulum draws ellipses with light on phosphorus surface. Science, physics and experiment concept Stock Photo - Alamy
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Big Pendulum Draws Ellipses with Light on Phosphorus Surface Stock Photo - Image of argon, optical: 129224012
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Big pendulum draws ellipses with light on phosphorus surface. science, physics and experiment concept. | CanStock
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Big Pendulum Draws Ellipses With Light On Phosphorus Surface. Science, Physics And Experiment Concept Stock Photo, Picture And Royalty Free Image. Image 155327981.
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Big pendulum draws ellipses with light on phosphorus surface. Science, physics and experiment concept Stock Photo - Alamy
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