As requested , here are the links to the videos that Rachel and I presented: Litre of Light: http://www.youtube.com/watch?v=o-Fpsw_yYPg&feature=related Discovery Channel India Innovators: http://www.youtube.com/watch?v=m_ho7xhgWV8 QDrum: http://www.youtube.com/watch?v=XQ_n5y3-Xnk Water Cooler: http://www.youtube.com/watch?v=zya0OQRqY1E Anil Gupta TED talk: http://www.ted.com/talks/lang/en/anil_gupta_india_s_hidden_hotbeds_of_invent... Video I skipped on wind power: http://www.ted.com/talks/william_kamkwamba_how_i_harnessed_the_wind.html More interesting links to such projects: Honey Bee: http://www.youtube.com/watch?v=s137JlAakaQ&feature=related http://www.changemakers.com/waterandsanitation/entries http://www.nif.org.in/ Sidhant & Rachel