Marrero, 15, invented a shoe insert that harnesses energy from walking and running and converts it into usable energy.
ino Marrero was leaving cello practice one day when he noticed several blisters on his fingers. The pain was so bad that the 10-year-old inventor from Frisco, Tx. wanted to quit playing the instrument for good, even though he loved music. So he started doing some research online to find a solution. “I learned that a lot of musicians actually quit their instrument because of finger pain,” says Marrero, now 15. “That’s when I realized I need to invent something for this.
For Marrero, being an inventor is about social change and helping the world by creating solutions to everyday challenges. “I always start with a problem and how it affects other people,” he says. “Can I bring more music to the world? Can I make sports more accessible for everyone? Can I help the environment positively?”
“No one in my family is an engineer or anything like that,” Marrero says. “So I went to the library, I went online, and I found out about piezoelectric discs and diode bridge rectifiers on my own.”
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