William changed and improved his design little by little. First, the windmill powered only one lightbulb. Eventually, it powered four lights. Then there was enough electricity for four lights and a radio. No one laughed at William after that, and people in his town started to come to his house to get power for their cell phones. Later, William built a second windmill. This one brought water up from underground. After that, William began to teach other people how to build windmills. He also continued to build more of them himself, including one at a primary school in Malawi.
William changed and improved his design little by little. First, the windmill powered only one lightbulb. Eventually, it powered four lights. Then there was enough electricity for four lights and a radio. No one laughed at William after that, and people in his town started to come to his house to get power for their cell phones. Later, William built a second windmill. This one brought water up from underground. After that, William began to teach other people how to build windmills. He also continued to build more of them himself, including one at a primary school in Malawi.
การแปล กรุณารอสักครู่..
