| 摘要 |
A system for displaying educational material relating to environmental matters comprises a computer, a laserdisc player for extracting video and audio signals and a globe which comprises a representation of the earth with an array of constantly spaced light emitting elements arranged on the surface of the globe so they can illuminate various patterns across the earth. The computer can control the patterns in stationary or moving format to illustrate various effects for example holes in the ozone layer, movement of pollution across the earth, the depletion or tropical rain forest. The array of illuminated lights in one preferred arrangement is formed by a plurality of optical fibers which are buried in an outer surface of the globe and which are connected together at an input end receiving light from a monitor screen on which the patterns are formed. A number of different monitors are provided each for generating illumination of a portion of the globe.
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