From Abacus to Calculator (Signs of the Times Series)
By Anita Ganeri.
Description
This is part of a series which explores the development of systems of recording and measuring, from the first forms of writing and the earliest calendars, to the latest in calculators and quartz clocks. Innovators, inventions and amazing facts are highlighted in text boxes, and there are suggestions for related activities. This book reveals the first methods of keeping tally, the first numerals and the invention of "zero". The book also looks at the achievements of some of the early mathematicians and traces the development of computers and calculators which have helped modern sci...
ISBN(s)
0237515334, 9780237515331
