This Listening for Rings from Space activity & project also includes:
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Lasers are so precise, they can detect a change the thickness of a human hair in the distance from here to the nearest star. To replicate NASA's LISA mission to measure gravitational waves in space class members build a model of a laser beam interferometer. The model mimics the way laser beams can determine the slightest change in distance between them.
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NGSS:
Adaptable
Concepts
Instructional Ideas
- Have the class research lasers to gain more information about how they work
Classroom Considerations
- You need a large space to test the interferometers
- The construction requires great precision in order to detect movement
Pros
- Includes a pattern to copy
- Diagrams show how to construct the interferometer
Cons
- In 2011 NASA decided not to continue with the LISA mission
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