Great Inventions

An Invention is a new way of making or doing something. Many inventions save time and effort and make life easier. Some inventions improve safety standards. Others just add more fun and enjoyment to life. A discovery is something you find that are already exists. People discovered natural fire many thousand years ago.

The wheel was invented over 5,000 years ago, and many people believes it is the most important invention there has ever been. By attaching wheels to carts and other land vehicles, it was possible to move people and goods from one place to another. The wheel playes an important role in engineering and machines, from the early potter's wheel to steam engines, cameras, and clock.

It is hard to believe that up to 300 years ago, work could only be done by people, animals, or the power of the wind and water. This changed in the 1700s when the steam engine was invented. The new engine powered transportation and factory machines.

Transportation is also one of the great invention that help us to travel faster and go to other places. In the ancient times, they use animals such as horse to bring them every where that they want to go. This also effect the job that they have.

For many hundrends of years ago, space was nothing but a fantansic dream. Only the most powerful engine could beat the pull of gravity and leave the earth behind. One thousand years ago, rockets were little more than fireoworks. This invention had led to new understanding of the earth  and the exciting exploration of the solar system.