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Unknown, 2007
Current format, Unknown, 2007, , No Longer Available.
Unknown, 2007
Current format, Unknown, 2007, , No Longer Available. Offered in 0 more formats
Suitable for ages 9 to 12 years, this title helps children discover the wonder of lighthouses and the geography that made lighthouses necessary, as well as the science that improved the strength of the light itself. It shows the kinds of lights including the spider lamp, reflected light, fresnel light, and lights of different brightness.
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