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Ann-on-y-mouse in Columbus
In class today, I briefly lectured on the
>structure of the round arch, especially the concept of the keystone holding
>the voussoirs in place through balancing forces. Then I told them to build
>arches out of the sugar cubes, using the emory boards to shave ones that would
>create the curve and the keystone.
Ann Heineman....aheinema-state.edu
Greensview School...Upper Arlington City Schools
(614)487-5050...Voice Mail 487-6456 Box 522
aheineman-arlington.k12.oh.us
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