History Of Hydraulic Engineering

July 3, 2012 · Posted in Education · Comment 

Some of the earliest uses of hydraulic engineering were to irrigate the crops and dates back 2,000 years. They used it to control the movement and supply of water for growing food. Among the earliest hydraulic machines, the water clock was used in the early 2nd millennium BC. The water clock was very important for regulating the flow for agricultural endeavors. Some other early examples of using gravity to move water include the Qanat system in ancient Persia and the similar – Turpan water system in ancient China as well as irrigation canals throughout Peru.

In ancient China, hydraulic engineering was highly developed, where engineers constructed massive canals with levees and dams to channel the flow of water mainly for irrigation, as well as locks to allow ships to pass. Sunshu Ao is considered the first Chinese hydraulic engineer. Another important Hydraulic Engineer in China, Ximen Bao was credited with starting the practice of large scale canal irrigation during the Warring States Period. Even today hydraulic engineers remain a respectable position in China. Before becoming President, Hu Jintao was a hydraulic engineer and holds an engineering degree from Tsinghua University.

A Greek engineer who built the Tunnel of Eupalinos on Samos in the 6th century BC named, Eupalinos of Megara, accomplished an important feat of both civil and hydraulic engineering. The civil engineering aspect of his tunnel was the fact that it was dug from both ends which required the tunnel diggers to maintain a very accurate path so that the two tunnels met and that the entire effort maintained a sufficient slope to allow the water to flow freely by.

Hydraulic engineering was highly developed in Europe during the time of the Roman Empire where it was especially applied to the construction and maintenance of aqueducts to supply water to and remove sewage from their growing cities. In addition to supplying the needs of their citizens they used hydraulic mining methods to prospect and extract gold deposits in a technique known as hushing, and applied the methods to other ores such as those of tin and lead.

In the Muslim world between the 8th – 16th centuries, during what is known as the Islamic Golden Age, further advances in hydraulic engineering occurred. One of which that was of particular importance was the ‘water management technological complex’ which was central to the Islamic Green Revolution and by extension, a precondition for the emergence of modern technology as we know it. The many components of this system were developed in different parts of the Afro-Eurasian landmass, both within and beyond the Islamic world. It is important to note that it was in the medieval Islamic lands where the technological complex was assembled and standardized, and subsequently passed to the rest of the world.

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How You Can Choose The Best Aggregate Services

February 7, 2012 · Posted in Business · Comment 

Even though aggregate services can be used for a variety of different situations, you will find that they are most commonly needed with construction. There is a need for this with every construction project. The only thing that is hard is that there are few times in which you will easily be able to find the service offered.

It is more common for these to be offered in areas that are beyond the city limits. This means that they are hidden away from the common places in which you travel throughout the day. If you are having trouble finding these then you can follow some tips that can make it easier.

Using the yellow pages in the phone book is the first tip to finding what you want. If you are like most people this is due to the fact that you have not been looking in the right place. By knowing what you are looking for when you want to find a business you will be more successful.

There are times when you might not be able to find what you need in the yellow pages, in this case call the local government. You can find out where the city prefers to have this service offered to them. You might not get other options though with this choice since they will not always give you other companies.

Familiar people can offer you suggestions if you give them a call. There are always people that you are friends with, family members, and people that you work with that could potentially help you. Other companies that do construction might even be able to help you by telling you who they use.

The chamber of commerce that is local to you would be a great place to try for a referral. If there is not one offered then the Better Business Bureau would be another choice. If you get one of these organizations to give you a referral you will know that it is going to be a good choice.

Going online is something that you can try as well because it is an easy way to find some of the best choices. There are great options because only the bigger facilities are likely to have their own websites. You could also try and find reviews to see what others think.

There are some things that you might need to be aware of as you look for reviews. This can include that you are able to find ones that are not part of hte companies so they are separated. Plus there are choices that are both good and bad that you should read through a varieyt of different reviews.

You should be able to find aggregate services but for one reason or another they are often more difficult than other businesses. You will find that they are not in areas that are convenient or passed on a regular basis. So when you really want to find this choice you will be most successful by finding the most reliable one.

Avoid incurring additional expenses from having to move smaller equipment around to different areas by contacting aggregate services GTA. They offer flexibility to match any projects needs with their superior concrete pumping GTA equipment and professiona