Students Unveil Grand Orrery at Andrews Hall

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The orrery was designed so that the orbiting speeds of each planet are accurate in relation to one another, but they are scaled up so that the motion of the planets can be enjoyed by a casual observer.
Scot Douglass, Engineering Honors Program director and faculty-in-residence at Andrews Hall, approached honors student Eitan Cher in the fall of 2011 to ask him to oversee a team of engineering students in developing it as a community project.

"This community did so much for me, and it feels great to leave something behind," says Eitan Cher, a CU engineering graduate who returned to Andrews Hall for the February 11 dedication of the Grand Orrery, a mechanical planetary system he and several other students designed and built last year as an extracurricular project.

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