File:Bay Bridge at night.jpg
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Size of this preview: 435 × 600 pixels. Other resolutions: 174 × 240 pixels | 348 × 480 pixels | 557 × 768 pixels | 743 × 1,024 pixels | 1,759 × 2,425 pixels.
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Summary[edit]
| Description |
English: Upper deck of San Francisco – Oakland Bay Bridge at night.
The illuminations on the cables, while part of the original design, are actually a relatively recent addition, made practical by the availability of high efficiency compact fluorescent lamps. The original roadway illumination was by low pressure sodium vapor lamps, which while efficient give off a garish monochromatic yellow light. On the lower deck these have been replaced with tubular fluorescent lights attached to the bottom of the upper deck, while on the upper deck the illumination is by high pressure vapor lamps, which give off a more full spectrum light.日本語: サンフランシスコ・オークランド・ベイブリッジ.
中文：三藩市灣區大橋. |
| Date | |
| Source | Own work |
| Author | Brocken Inaglory |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:19, 30 May 2010 | | 1,759 × 2,425 (3.13 MB) | Stevertigo (talk | contribs) | Slight rotate (left ~.5 deg.) and crop/trim excess. |
| 13:43, 28 October 2009 |  | 1,820 × 2,480 (2 MB) | Mbz1 (talk | contribs) | cleaned | |
| 14:25, 26 October 2009 |  | 1,820 × 2,480 (1.95 MB) | Mbz1 (talk | contribs) | {{Information |Description={{en|1=bb}} |Source={{own}} |Author=Mbz1 |Date=2009-10-25 |Permission= |other_versions= }} |
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