Above the city are layers on layers of different air, varying in composition, temperature, and thus density. At sunset, that makes for lots of scattering and color.
“All things are transient,” said my scientific collaborator, with just a hint of irony. From up in the hills at Berkeley Lab, where we study the way that light and matter interact, he meant it in three senses:
- We use “transient absorption spectroscopy” to study the changes in a material after it is exposed to light. The new states we create are transient.
- The gentle blue-hour conditions of this picture are transient; the light was completely different ten minutes later.
- Berkeley Lab sits atop the Hayward Fault; a large earthquake could topple the lab at any time.
In the face of all of that transience… Might as well go for a drive.
If this week on Decaseconds has had a theme, it has been structures suspended over water at sunset. It has also been a week of long-exposure shots that live up to the site’s title. Hoards of gulls riding on the waves are reduced to weird ghost-blurs in the foreground of the San Francisco Bay Bridge, Yerba Buena, and the Port of Oakland.
Toaster glow sunlight was the result of through marine-layer haze coating San Diego every evening. I couldn’t help but notice the three abnormally large ships in this image: In the distance, two Navy aircraft carriers are the essence of industrial, practical form. Moored in the foreground is a truly massive sailing yacht that is 100% style. Look at how it dwarfs even the ostentatious motorboats beside it. Quite the contrast.
This photograph is a double-case of finding interesting details by looking away from the obvious. On one hand, this subtler image was captured opposite an intense sunset over San Francisco. The color palette is heavy with pastels, but accented with a few harsh reds from Oakland in the distance. In the image itself, there’s a tiny building under the right-hand span of the bridge. Seeing something so (let’s say) adorably sized next to something so dominant and enormous makes for a charming contrast.