Legend has it that the first magic square, where all lines and diagonals add up to the same figure, was revealed more than 2,000 years ago when a river turtle appeared to have ancient Chinese numerals inscribed on sections of its shell.
Patterns are everywhere in nature, and counting, measuring, and calculating changes are as old as civilization itself, as are many of the theorems and laws of math.
Over many centuries, great minds puzzled over the evidence and, step-by-step, edged ever closer to the truth. Behind every one of these breakthrough moments there is a story about a confounding puzzle that became a discovery and changed the way we see the world.
We call these Ponderables.
Includes a removable concertina housed in the back of the book providing a 12-page Timeline History of Mathematics.