As a volunteer in rural Peru, American college student Joseph Linzon saw 1) many / many problems. He remembered that 2) many residents did not have access to electricity for electronic devices such as laptops and mobile phones. When he was 3) hiking through many / many remote villages, an idea came to his mind. While walking, you generate 4) some / some energy, how about shoes that convert this energy into electricity. Based on this idea, Powersole was born, a shoe that generates electricity to charge electronic devices. Back home, Joseph spent 5) several / all days in his family's garage developing his idea. He did not have 6) any / little education in science, so he asked a friend 7) a little / a little help until he came up with his first prototype of shoes. The shoes are equipped with a USB charging port. Joseph has received 8) much / much recognition for his invention and plans to produce low-cost footwear for electronic devices. developing countries. Joseph says he gets 9) great / tremendous satisfaction from finding solutions to various problems.