The global population today is about 6 billion people. That’s 2 000 times more than it was a thousand years ago!
MUMBAI World’s most populous city, with 14 million inhabitants. LONDON Home to Heathrow Airport, which sees more than 61 million international air travellers every year. TOKYO World’s largest metropolitan economy, with
an annual gross domestic product (the total money made in a year) of $1,19 trillion. SINGAPORE This tiny (710 km2 ) city-state is fifth-highest in terms of the amount of money it makes relative to its population size.
T I ME O F
VENUE The Olympic Games take place every four years. The venue changes every year and cities have to bid for the honour. The 2008 Olympics were held in Beijing and London will host the 2012 Olympics. SPORTS In 2008, 302 events were held across 28 different sports – from table tennis to taekwondo. ATHLETES In 2008, men and women from 204 countries took part.
T I MEL I NE
How Olympians compete today
CLOTHING Athletes wear state-of-the-art gear, with moisture-wicking fabrics to keep runners cool, lightweight running shoes to enhance performance, and buoyancyboosting costumes for swimmers. PRIZES The winner of each event is awarded a gold medal (with silver and bronze for second and third places), along with lucrative sponsorship deals. CHEATING Doping is the most common form of cheating, with a handful of athletes being busted at virtually every Olympics. About 4 500 doping tests were done in 2008 and six athletes were disqualified.
The Modern Olympics
1511 CE German clockmaker Peter Henlein invents the springloaded, wind-up pocket watch.
1656 CE Dutch mathematician Christiaan Huygens uses an oscillating pendulum to keep an tick-tock watch accurately on time. 1969 CE Seiko produces a wristwatch that keeps time with a tiny quartz crystal oscillator. 1972 CE Inspired by 2001: A Space Odyssey, John Bergey of the Hamilton Watch Company creates the first digital watch: the 18-carat gold Pulsar has a red display and a price tag of $2 100. If you could go back to any period in history, which era would you choose and why? Email your name, grade, school, and contact number to <firstname.lastname@example.org> to win a HIP2B2 USB watch, with a 1GB flash drive. (They didn’t make those 100 years ago …).