Genius Optical Inventions: From the X-Ray to the Telescope

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Genius Optical Inventions: From the X-Ray to the Telescope

From the Series Incredible Inventions

Before magnifying glasses, how did people make objects look larger? The ancient Romans filled glass bowls with water. Then microscopes and telescopes came along. But optical innovation didn't… Read More →

  • Lexile: 980
  • Dewey: 621.36