MIT are working on a project harness photosynthetic process to someday power our cellphones and laptops. Popeye knew about the power of spinach and possibly we wil see it being used in 10 years. It will be a spinach power cell.
http://www.boston.com/business/technology/articles/2004/09/18/were_talking_real_green_energy/
http://www.boston.com/business/technology/articles/2004/09/18/were_talking_real_green_energy/