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dc.creatorUniversity of Texas at Austinen
dc.creatorMcDonald Observatoryen
dc.date.accessioned2014-07-02T17:09:22Zen
dc.date.available2014-07-02T17:09:22Zen
dc.date.issuedundateden
dc.identifier.urihttp://hdl.handle.net/2152/24959en
dc.descriptionIntroduction: In this experiment, students construct an equilateral triangle using graph paper, pencil, protractor and a ruler. They also make a "laser triangle" using a laser pointer and front-silvered mirrors. Students can use the geometric properties of an equilateral triangle combined with their understanding of the Law of Reflection to decide how to place the mirrors at each vertex so that the "laser triangle" fits their equilateral triangle.en
dc.language.isoengen
dc.publisherMcDonald Observatoryen
dc.subjectTEKSen
dc.subjectLesson Planen
dc.subjectScienceen
dc.subjectAstronomyen
dc.subjectastronomical technologyen
dc.subjectenergy transferen
dc.subjectenergy wavesen
dc.subjectDoppler effecten
dc.subjectGrades 9-12en
dc.titleDelta, Delta, Deltaen
dc.typeLearning objecten
dc.description.departmentMcDonald Observatoryen


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