Пол из бумаги.

ОЧЕНЬ ИНТЕРЕСНО! !! http://interesn0.in.ua/2016/09/20/%D0%B2%D0%BC%D0%B5%D1%81%D1%82%D0%BE-%D0%B4%D0%BE%D1%80%D0%BE%D0%B3%D0%BE%D0%B3%D0%BE-%D0%B8%D1%81%D0%BA%D1%83%D1%81%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%BD%D0%BE%D0%B3%D0%BE-%D0%BA%D0%B0%D0%BC%D0%BD/