The World of Figures 2007
	07: Days to clear cheques 14: Car speed and wheels 21: David Beckham's earnings 28: Meaning of Zero 01: Gravity in space 08: Satellites, orbits and space 15: Fly in a car 22: The Richter scale 29: Earthquakes     04: Names, dates and addresses 11: Breaking the bank 18: How to save money 25: Electric phases 05: 4,500% inflation 12: 100,000 signatures 19: Who owns Safaricom 26: Percentage loss     04: Interest on bank loans - I 11: Total voltage in 3-phase 18: Interest on bank loan - II 25: Counting a billion 02: Vehicle registration 09: Constituency Boundaries 16: Rent versus mortgage - I 23: Rent versus mortgage - II 30: Exam questions     01: Largest number - I 08: Largest number - II 15: Value of money 22: 29: Cost of school reports 07: Digital cameras 14: Rechargeable vs Alkaline batteries 21: 28: Presidential campaigns     06: Return on insurance policy 13: Perpetual machines - I 20: Perpetual machines - II 27: How insurers make money 04: Winning elections 11: Is digital better than analogue? 18: How to spot a pyramid scam 25: The value of Safaricom     03: Speed and fuel consumption 10: Return on investment 17: Building the ISS 24: Satellites and orbits 02: Counting birthday candles 09: Mortgage payments 16: 23: Solar panels 30: Dualising Mombasa highway