The Mathematics Calendar 2005 Author:Theoni Pappas Featuring games, stories, brainteasers, and fascinating graphics, this popular calendar stimulates curiosity, opens up the imagination, and provides entertainment for every day of the year. The box for each date contains a problem whose solution is the date itself - the challenge lies in figuring out how to arrive there, and possibly discovering... more » more than one method. In addition, every month offers a treasure trove of information: how random numbers shape the landscape, Zeno's zany paradoxes, the Möbius strip, prime twins, mathematical connections between codes, new technologies, the workings of lighthouses, and much more.« less