John Lesley Knihy

We use magnets every day. From little magnets in toys to very large magnets in heavy machinery magnets are an important component in all sorts of technological devices. Find out what makes magnets attract and repel and what makes our Earth behave like a massive magnet.

"Starting with an early settlement dating from about 1600 years ago, Jakarta has grown to become a densely populated city and the capital of Indonesia. Jakarta has always been a centre for trade. The old capital, Batavia, was the main port city for the Dutch East India Company, and was known around the world as a source of wealth through commerce."--Publisher.

Many people around the world instantly envisage New York when they hear about the United States, but New York City, fondly known as NYC, has its own story and character. The city is a cultural and financial hub, and its theatres and art galleries influence worldwide trends. The 9/11 terrorist attacks shook New Yorkers, but did not break their remarkable spirit, or their ability to keep their city one of the most vibrant and diverse places on Earth.

As the capital of the state of New South Wales,Sydney is a centre for business, education and professional services, not only for Australians but also for the whole South Pacific region. As the site of the first British colony in Australia, and the home of the Indigenous Eora people for many thousands of years, Sydney has a rich and unique history.

Slums and palaces, Bollywood and beaches, Mumbai is a city unlike any other. Bursting at the seams with people, Mumbai somehow still manages to offer its population quiet and beautiful places where they can escape from the noise and traffic. The business and financial heart of India, Mumbai has expensive real estate alongside one of the largest slum areas in the world.

For humans and other life on this planet Earth is the most precious place in the Universe. Have you ever wondered what's deep down under your feet or how our Earth was formed Find out the answers to these and many other questions and you will then be able to look around you with a whole new appreciation of the place where we all life

Have you ever wondered how sound gets from the place where it is made, and travels to your ears, where you hear it? Sound is not something you can see. This is because sound is a transfer of energy. Is sound the same in outer space as it is on Earth, and how do astronauts hear each other?