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Optical or Nonoptical. In your science journal write a brief answer to the following questions: Have you ever bent or slowed down light? How did you do this?. In your science journal write a brief answer to the following questions: Have you ever bent or slowed down light? Wearing eyeglasses

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Objectives

Objectives


  • Terms following questions:

    • Telescope

    • Refracting Telescope

    • Reflecting Telescope

    • Electromagnetic Spectrum




  • Optical telescopes the moon look like? What would you use?

    • Used to study visible light from objects in the universe

      • Focal Point

      • Objective Lens

      • Eyepiece


  • Refracting Telescope the moon look like? What would you use?

    • Uses lenses to gather & focus light

    • *Use your textbook to compare & contrast a refractor & reflector telescope. Page 559


  • Reflecting telescope the moon look like? What would you use?

    • Use mirrors to gather & focus light.

      • Curved mirror

      • Flat mirror

      • Eyepiece


  • Reflecting Telescope the moon look like? What would you use?

    • Optical Land Telescope

      • Example: Keck Telescope

        • 36 Hexagonal mirrors in each telescope

        • Allows more light

        • Produces a 10 m aperture




  • Reflecting Telescope the moon look like? What would you use?

    • Optical Telescope in Space

      • Example: Hubble Space Telescope

      • Avoids interference by the atmosphere

      • 2.4 m aperture


  • James Clerk Maxwell 1852 the moon look like? What would you use?

    • Proved visible light is a part of the electromagnetic spectrum (EM)


  • Detecting EM Radiation the moon look like? What would you use?

    • Nonoptical Telescopes

      • Example: Radio Telescope


  • Nonoptical Telescopes the moon look like? What would you use?

    • Example: Chandra X-ray Observatory

      • Placed in space to avoid limitations by Earth’s atmosphere.

      • Detect Black Holes



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