Yep, it’s that time again… here are this week’s green tech finds.

• Fighting the downturn with rooftop windfarms: Co-op and condo building owners are exploring wind and solar energy options as a way to cut building costs during the down economy.
  
  
• Deep water floating wind turbines go online: Norwegian company Statoil has flipped the switch on the world’s first floating wind turbine. (via EcoGeek)
  
  

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At the tail end of the 19th century and the beginning of the 20th, Thomas Edison filmed men doing bike tricks that seem surprisingly contemporary today. The description of this film at the Library of Congress reads: “‘Neidert,’ of national fame, does stunts on his wheel that are simply wonderful. Makes his bicycle rear up, and rides around the stage on his back wheel; besides a lot of other easy things, such as riding on one pedal and riding backward, seated on handlebar.”

[via Jason Kottke.]

The League of American Bicyclists has declared May 11 – 15 “Bike to Work Week,” and published a nine-page bike commuter guide for those of us who may still think that riding in traffic is a good way to get killed. Among the benefits of bicycle commuting:

Health: No need to worry about making time for the gym: “Ride your bike to work, and you no longer need to make time to exercise.”

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