Abacus

Picked up this book from B&N today . Reader friendly 150 page book that I managed to read over the subway ride back.

Well, I was just curious to find out what makes the system so addictive . In the past, I had witnessed a couple of abacus competitions and was amazed by the speed with which calculations are done. There are atleast 2 clubs that I am aware of in Hyd(India). The expert in one of the clubs was so proficient that he could add about 15 numbers in air with just a mental image of abacus. He was able to add all those numbers in less than 3-4 sec.

Anyways, the book is definitely a good way to begin understanding the basics and the last chapter of the book is fascinating account of the possibilities of computations with abacus !