File:Bay Bridge at night.jpg
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Summary
| 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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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 03:19, 30 May 2010 | | 1,759 × 2,425 (3.13 MB) | Stevertigo | Slight rotate (left ~.5 deg.) and crop/trim excess. |
| 13:43, 28 October 2009 |  | 1,820 × 2,480 (2 MB) | Mbz1 | cleaned | |
| 14:25, 26 October 2009 |  | 1,820 × 2,480 (1.95 MB) | Mbz1 | {{Information |Description={{en|1=bb}} |Source={{own}} |Author=Mbz1 |Date=2009-10-25 |Permission= |other_versions= }} |
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