Researchers at Purdue University have developed a new miniature medical sensor that uses the bass of Hip-Hop music to power and recharge itself. The researchers at Birck Nanotechnology Center at the Discovery Park in West Lafayette created the device that is known as a microelectromechanical system (MEMS). A study found that acoustic waves for music, especially rap, effectively recharge the device's pressure sensor. The professors used a number of genres of music to test the sensor, including Jazz, Blues, and Rock. "Rap is best because it contains a lot of low frequency sound, notably the bass," said Babak Ziaie, a Purdue University professor of electrical/computer engineering and biomedical engineering. The acoustic waves from music or plain tones drive a vibrating device called a cantilever, which sends a charge to power the sensor.
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