Hydro(Water timeline.

An early example of a fountain, found in Mesopotamia, dates from around 3000 BC. It consisted of a series of basins which made use of a natural spring. A similar system is found in Greek and Roman remains. Mechanically-operated fountains became familiar during the 15th century in Italy. (Source: The Origins Of Everything, by Gordon Grimley, 1973.) I chose this event because this is when people started to pay a lot of money for their fountai. The water company’s started to get quite the money.

Water Wheels were the first machines to use water power. They were first used by the ancient Egyptians on the River Nile, about 4,000 years ago. Most water wheels were used to grind flour, using millstones.A water wheel is a wheel with paddles round the edge. When water pushes against the no addles, they turn the wheel and the axle in the Centre. The axle could be fixed to other machines through sets of links.
I chose this event because a lot of people used water wheels 4,000 years ago.

A tide mill is a water mill driven by tidal rise and fall. It was invented in 1100. A dam with a sluice is created across a suitable tidal inlet, or a section of river estuary is made into a reservoir. As the tide comes in, it enters the mill pond through a one way gate, and this gate closes automatically wh the tide begins to fall. When the tide is low enough, the stored water can be released to turn a water wheel. I chose this because it was helpful to people to clean rivers and lakes.

A dam is a barrier that stops or restricts the flow of water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. The first known appearance of dam occurs in 1165. However, there is one village, Obdam, that is already mentioned in 1120. The day dams were invented, it saved the world from flooding. I chose this because it effects rivers and lakes.

The first practical steam engine was invented by Thomas Newcomen, in 1712. A steam engine is a heat engine that performs mechanical work using steam as its working fluid. It was made to pump water out of deep coal mines. Then, in 1765, James Watt improves the first steam engine. He used it to drive other machines. Soon there were hundreds of steam engines driving machines in European factories.

In 1854 it was discovered that a cholera epidemic spread through water. The outbreak seemed less severe in areas where sand filters were installed. British scientist John Snow found that the direct cause of the outbreak was water pump contamination by sewage water. Since the water in the pump had tasted and smelled normal, the conclusion was finally drawn that good taste and smell alone do not guarantee safe drinking water. I chose this because it’s when people didn’t know if water wasn’t safe.

Hydroelectricity is electricity produced from hydropower. Lester Allen Pelton invented hydroelectricity and hydropower in Most new hydroelectric power stations are now being built in the poorer countries of the world, especially Asia. In China, the massive Three Gorges Dam project began in 1993 It should be ready in 2009. Many smaller projects are also being built around the world. I chose this because it takes a big part in water energy source.

Water constantly erodes, or wears away, the land. Strong waves and winds wear away coastlines. Beaches are washed away by storms, cliff fall down, and buildings fall into the sea. At high tides and during storms, the sea can flood the land. In the Netherlands, flood barriers called dykes were built to protect the low coastlines. In 1953, high tides broke through the dykes and 1,800 people were killed. That was one of the biggest tides ever. I chose this because it happens a lot and people die.

Tidal power or tidal energy is a form of hydropower that converts the energy obtained from tides into useful forms of power, mainly electricity. The biggest tidal power station in the world is on the River Rance in France. It was built in 1966 and makes enough electricity for a quarter of a million homes. The power station’s barrier starches 750 metres across the river, and the water passes through 24 tunnels. I chose it because people don’t know what it is and it is important.

Oscillating Water Columns are a type of Wave Energy Converter that harness energy from the oscillation of the seawater inside a chamber or hollow caused by the action of waves. Oscilling Water Column have shown promise as a renewable energy source with low environmental impact. The oscillating water column generator was first made in 1980. It was invented by student engineers from Northern Ireland and a Norwegian company in Oslo. I chose this because it is a renewable energy source.