Between the crystals are layers of weaker organic material. By striking the teeth with microscopic, diamond-tipped probes, the scientists found that the teeth break along these organic layers.

Constructing detailed, real-time three-dimensional models of places from swarms of tiny cameras-a virtual model of a real scene-would have mind-boggling applications.

This paper introduces a neutron diffractometer system with three detectors in which the microcomputer is applied to control Instruments, collect information and process data.