March 30, 2008

SAN FRANCISCO show-and-tell.

The lights on the suspension cables of the western side of one of the busiest bridges in the world are just for decoration, not for navigation safety or whatever. They sure make a big difference to the look of San Francisco at night when they are turned off.

Question: Turning off these decorative lights for an hour saves enough electricity to power Al Gore’s house (his actual house, not his San Francisco condo SOMA that’s visible on the right) for how many minutes?

Answer: About 13 minutes. Let’s work on that math, after the jump.


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