TED Talks
William Kamkwamba on building a windmill (2007x27)
Fecha de emisión: Jun 01, 2007
When he was just 14 years old, Malawian inventor William Kamkwamba built his family an electricity-generating windmill from spare parts, working from rough plans he found in a library book.
- Estrenada: Feb 1984
- Episodios: 2462
- Seguidores: 10