The idea is to relate economic activity, measured in cash terms, to environmental magnitudes measured in physical units.

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The Army and Marine Corps, especially, will be examining physical standards and gender-neutral accommodations within combat units.

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They play with children in pediatric units, help kids learn to read, promote fitness and physical activity, and so much more.

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The miniature building began as a detailed 3-D software rendering before the physical model was built to iron out all the intricacies of connecting the units in the full-scale building.

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Microsoft said it sold 10 million Xbox Kinect sensors, the devices that help people play games using physical motion, in its first 60 days, when sales averaged 133, 333 units a day.

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