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Science Student Scores with Spectrograph

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Michael A. Greenwood

It’s safe to assume that the average teenager has, at best, only a vague idea of what a spectrograph is, never mind how the precision instrument really works. But 17-year-old Mary Masterman, a senior at Westmoore High School in Oklahoma City, is not your average teenager. Not only does she know what the scientific device is and how it works, she also knows exactly how to build a fully functional one from scratch. Her working spectrograph so impressed judges from the Intel Science Talent Search that, in March, they named her the winner of the 66th annual competition during a reception in...Read full article

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    Published: May 2007
    Glossary
    spectrograph
    An optical instrument for forming the spectrum of a light source and recording it on a film. The dispersing medium may be a prism or a diffraction grating. A concave grating requires no other means to form a sharp image of the slit on the film, but a plane grating or a prism requires auxiliary lenses or concave mirrors to act as image-forming means in addition to the dispersing element. Refracting prisms can be used only in parallel light, so a collimating lens is required before the prism and...
    lensesLighter SideMicroscopyspectrographLasers

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