Weekly Photo Challenge: Nighttime

by Posted on

This week theme.

SONY DSC

Eiffel Tower by night. The beacon, sending out two light beams with a reach of 80 kilometres, is composed of 4 “marine” motorised projectors. They are operated by automatically piloted computer programs. Since their rotation sweep is 90°, they are synchronised to form a double beam in a cross that pivots around 360°.

Paris, Eiffel Tower

copyright-2014

7 Thoughts

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  3. Pingback: Photo Challenge: Nighttime | tnkerr-Writing Prompts and Practice
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