19 Common Things Science Hasn’t Figured Out - Mental Floss List Show Ep. 525

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A trivia-tastic, fact-filled show for curious people. This week, Erin tells you about 19 everyday things that science still hasn’t figured out! Subscribe for new Mental Floss episodes ---- Website: http://www.mentalfloss.com Twitter: http://www.twitter.com/mental_floss Facebook: http://www.facebook.com/mentalflossmagazine Store: http://store.mentalfloss.com/


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