[Bah-tagonius] [Bah-general] Incandescent filament lamps have been us

Jue Ago 20 00:37:17 CEST 2009

D places. The larger light-ships are now using electricity generated by
apparatus installed in the vessels. There seems to be a tendency toward
the use of more buoys and fewer lighthouses, but the beam-intensities of
the latter are increasing. In the hundred years since the Boston Light
was built the same great changes wrought by the development of
artificial light in other activities of civilization have appeared in th
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