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Teen Invents Land Mine Detector Inspired by Piano Playing

A 17-year-old has invented a mine-sweeping device that can detect land mines based on sound waves, similar to the way piano strings create vibrations in nearby guitars. Both of Marian Bechtel's parents are geologists involved in developing a holographic device for detecting land mines, but her own idea was inspired by her time spent at the piano.

Violin Prodigy Plays for Haiti (Video)

Florida violinist Kahane is a brilliant musician at only eight-years-old. She has performed at charity events in the past, but when she heard the devastating earthquake in Haiti had destroyed a music school and crushed the violinist who'd founded it, she wanted to help. She started writing letters to famous violinists asking for money to rebuild the school and instruments to fill it.