Recharge electronic devices by converted heartbeat

Sarojini Mahajan, a 15 year old Delhi schoolgirl has invented a wristband that converts the human heartbeat into an electric current to recharge electronic devices like cellphones. She got an idea of it while looking at her mobile phone and the self-winding watch on her wrist.

"She saw her watch didn't need to be wound or charged, and started to research pulse charging," Anjali Aggarwal, the head teacher at St Marks Senior Secondary School in West Delhi. Sarojini then took her idea to her science teacher, who forwarded it to our National Innovation Foundation of India.

Although her idea failed to win the institute's top prize, it was commended on its website, which brought it to the attention of Stanford University's chief technology officer, who sent a proposal to develop the idea for commercial use.

Stanford University is now partner with the National Innovation Foundation of India (NIF) to incubate and develop the concept.

Sarojini is now planning a career as a research scientist. “Science fascinates me, I want to explore more and more,” she said. Apart from science, she is interested in music and dancing too. “I am so happy today,” she giggled.

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