This entertaining follow-up to DK's popular Go Figure!, Why Pi? presents even more mind-bending ways to think about numbers. This time, author Johnny Ball focuses on how people have used numbers to measure things through the ages, from the ways the ancient Egyptians measured the pyramids to how modern scientists measure time and space. Johnny Ball has hosted more than 20 UK children's television series about math and science. He is known for making math not just easy to understand, but genuinely fun and fascinating. His shows and videos earned him a New York international EMMY nomination, a BAFTA, and 10 other awards. He has written five children's books, including DK's Go Figure!, and an educational musical. His academic credentials include three honorary science doctorates and fellowship of the British Mathematical Association.

Product Description: From how to cheat in a coin toss to why it is that some parts of a high speed train travelling at 125 mph are actually going backwards, Ball of Confusion is designed to twist your brain into enjoyable knots of empuzzlement—from puzzles solved in a twinkling of an eye to some that will knit your brow for hours...read more

Join TV Presenter, Johnny Ball for an incredible number-filled adventure, cracking secret codes and unravelling mazes - now in paperback. Let your child join Johnny Ball on a dazzling maths adventure to infinity and beyond. They'll find out maths isn't just about sums and calculations, but how numbers can take them anywhere! Watch as they learn to test their friends with magic tricks, discover mind-reading techniques and find out about the simple puzzles that stumped the world's brainiest mathematicians for centuries. So if your child thinks maths is boring - help them think again with Johnny Ball!

Helps readers investigate mathematical marvels such as why daisies always have 34, 55, or 89 petals, why all the world's phone numbers appear in pi, and other paradoxes that will make readers look at numbers in a whole new way.