No one in the world knows how to make the newspaper you are holding (and, if you’re reading this on your phone, computer, iPad or Kindle, no one knows how to make those things either). Even the best ...
Despite the name, pencils have never been made with lead. They’re made with graphite, a form of carbon. Just where does graphite come from, and why did we decided to write with it? NPR took a look ...
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