Impact of The Wello Water Wheel Story | Cynthia Koenig | TEDxGateway
26:12
The Lifesaver Bottle Will Save Millions Of Lives : Michael Pritchard at TEDxGateway
7:36
The Wello Water Wheel Story : Cynthia Koenig at TEDxGateway
11:11
Huelga escolar por el clima: salvar el mundo cambiando las reglas | Greta Thunberg | TEDxStockholm
16:03
The keys to living a rich life | Bridget Hilton | TEDxTemecula
11:49
The crucial role of hydrogen in India's clean energy transition | Raghunath Mashelkar | TEDxGateway
23:56
TEDxMumbai - Dhanashree Pandit-Rai - 04/03/10
12:45
Mi filosofía para una vida feliz: Sam Berns en TEDxMidAtlantic 2013
14:24