Solar Powered Air Pump From Scrap Materials

A 2.5 litre per second air pump powered directly from a photovoltaic panel, about $10 in materials. This is going to be part of a cooling system, details on which are at: http://www.solarflower.org/?content=othertech&lang=en&tech=airconditioner

The sound on the video isn't amazing, if there's any questions let me know. I'll be doing a more involved construction tutorial on this at some point. ... https://www.youtube.com/watch?v=m-JnJQB29r0