| Mayan Abacus Display |
| Client: Museo Historia Mexicana in Monterey, Mexico |
| Special Skills: Specialized custom electronics and software, precision fabrication |
| Purpose: To explain the Mayan base-20 counting system. |
| How it works: The display consists of 5 sets of 4 stainless steel rods corresponding to the five digits of the Mayan base-20 counting system. To operate the unit the visitor slides the steel bars or balls from the left side of the display to the right side. As the pieces cross the center line of the unit, a computer registers the motion and adds the assigned value to both the LED displayat the right of each set of bars and to the totalizer at the bottom of the unit. Moving the bars or balls from right to left subtracts the corresponding value from the displays. the display uses specially configured inductive sensors to detect the presence, absence and direction of the steel bars and balls. |
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621Reed Street · Philadelphia, PA 19147
Phone 1 800 355 0040 · Fax 215 755 6028
email:info@peterassociates.com
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