Solution: William Kamkwamba built a windmill using locally available materials, such as bamboo, scrap metal, and bicycle parts, to power a water pump. This innovation enabled him to irrigate his crops during dry periods and increase agricultural production.
Steps taken:
1. Inspiration: William was inspired by a science book that described windmills and their use in generating power.
2. Research: He conducted extensive research on windmills, studying their designs and operation.
3. Materials: William gathered locally available materials, such as bamboo, scrap metal, and bicycle parts, to construct the windmill.
4. Construction: He built a 30-foot (9-meter) tall windmill with four bamboo blades attached to a metal frame. The blades were connected to a gear system that turned a shaft, which powered a water pump.
5. Trial and error: William faced numerous challenges during construction and made several modifications to improve the windmill's efficiency.
6. Success: Eventually, the windmill successfully pumped water from a borehole into an elevated water tank, allowing William to irrigate his crops during the dry season.
7. Impact: The windmill helped William and his community overcome food shortages, improve their livelihoods, and inspire others to find innovative solutions to their challenges.
William's success story demonstrates the power of creativity, resourcefulness, and determination in overcoming seemingly insurmountable problems. His accomplishment inspired people worldwide and brought international recognition to Malawi's innovative spirit.