Science Friday Published by Science Friday Hr2: Immunizing Against Fake News, Fighting Online Extremisom, Paperfuge Listen 47 min Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/733551/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend The Paperfuge is a hand-powered paper centrifuge that costs less than one dollar to produce. And a strategy for building an immunity to fake news.