People, trucks and even military tanks have tried and failed the task of pulling apart two phone books lying face up with their pages interleaved, like a shuffled deck of cards. While physicists have long known that this must be due to enormous frictional forces, exactly how these forces are generated has been an enigma – until now.
A team of physicists from France and Canada has discovered that it is the layout of the books coupled with the act of pulling that is producing the force.
http://phys.org/news/2015-08-mystery-impossible-interleaved.html
(Score: 2) by Freeman on Thursday August 27 2015, @10:26PM
Too late. They already did that one . . . see Youtube for the low down on "Phone Book Friction". https://www.youtube.com/watch?v=hOt-D_ee-JE/ [youtube.com]
Joshua 1:9 "Be strong and of a good courage; be not afraid, neither be thou dismayed: for the Lord thy God is with thee"