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An MIT doctoral student has designed a new chip that harvests energy from what three ambient sources?

An MIT doctoral student has designed a new chip that harvests energy from what three ambient sources?

Answer: photovoltaic, thermoelectric and piezoelectric

According to the chip's designer, doctoral student Saurav Bandyopadhyay,the new energy combining circuit is capable of using all three ambient power sources — natural light, heat and vibrations — at the same time. This new chip is the beginning of battery-free monitoring systems — which could ultimately be used in biomedical devices, environmental sensors in remote locations and gauges in hard-to-reach spots, among other applications, according to MIT