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At my high school one of the classrooms had a 6 foot wide slide rule the teacher could use to demonstrate the use of the slide rule. It would drop down to eye level and he could move it and show how to do calculations ans the students followed along.
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Glen
49 Year member of the Porsche Club of America
1985 911 Carrera; 2017 Macan
1986 El Camino with Fuel Injected 350 Crate Engine
My Motto: I will never be too old to have a happy childhood!
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