Scientists create paper-thin device that turns flags into loudspeakers
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Scientists at Michigan State University (MSU) have created a paper-thin, flexible device that, when integrated, can turn a flag into a loudspeaker by generating energy from human movement. The ferroelectret nanogenerator known as FENG debuted in late 2016, when its creators demonstrated its abilities by using it to power a keyboard, LED light and an LCD touchscreen.
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