Fun Facts About Surveying: Theodolites Wholesale Drew Storen Jersey , Famous Surveyors & More September 17, 2015 | Author: Carey Bourdier | Posted in Education
There have been surveyors around almost as long as people have been on the planet. While the early surveyors who helped construct Stonehenge and other ancient artifacts might not have had formal schooling, their skills helped build monuments that stood for thousands of years. In ancient Egypt and Rome, surveying was a revered profession and these individuals help build roads and buildings and even the Pyramids.


Surveyors use a variety of tools, including clinometers or inclinometers, compasses and GPS. One of the most common tools used by surveyors is the theodolite Wholesale Brandon Finnegan Jersey , an optical instrument which measures angles in the vertical and horizontal plane. The first theodolites date back to the early 16th century and perhaps the most famous theodolites were the Ramsden theodolites, which were used to create detailed surveys of Great Britain as well as India.


Theodolites are still quite similar to the ones used hundreds of years ago, although today’s optical instruments tend to be even more accurate. A total station is special device that has improved on the traditional theodolite and is quite popular with professional surveyors. This device is an optical instrument that not only includes a transit theodolite, it also contains an EDM or electronic distance meter and it records measurements for the surveyor.


Some of the world’s greatest historical figures have worked as surveyors. In the United States, this includes George Washington, Thomas Jefferson and Abraham Lincoln. However Wholesale Desmond Jennings Jersey , Meriwether Lewis and William Clark are perhaps the most famous American surveyors. Benjamin Banneker is another notable surveyor. Banneker, the son of freed slaves, was an autodidact who eventually worked with team that surveyed the original borders of the District of Columbia.


Surveyors around the world can join in on the fun of International Surveyors Week, which is set annually in June. The highlight of the week is Survey Earth in Day, which also is known as SEAID. During this event, thousands of surveyors collect GPS data from known survey markers near their residence and share it with other surveyors. Any professional surveyor can use a GPS Wholesale Adam Duvall Jersey , total station or theodolite and get in on this event. During the most recent SEIAD event, more than 2,000 surveyors sent in data.


One fun activity that quite a few surveyors enjoy is geocaching, which isn’t actually surveying, but rather locating hidden caches using a GPS receiver. You can look for these fun hidden items or you also might consider hunting down some of the survey markers around the United States that the National Geodetic Survey has put in place. These markers are all over the country, on the tops of mountains Wholesale Michael Lorenzen Jersey , in cities and in many other locations. Unlike regular surveying, where you might need a total station or a theodolite and tripod, you just need a GPS receiver for these activities.


Carey Bourdier loves blogging about precision scientific instruments. For more information about surveying products like a surveyor compass, or to find other alignment instruments, visit the Warren Knight site today.


BEIJING, Oct. 19 (Xinhua) -- China's average per capita disposable income grew 9.1 percent year on year to 19 Wholesale Brandon Phillips Jersey ,342 yuan (about 2,930 U.S. dollars) in the first three quarters of the year, data showed Thursday.


Deducting inflation, the real growth was 7.5 percent, 1.2 percentage points higher than that for the same period last year.


The figure exceeded the country's GDP growth of 6.9 percent for January-September, according to data from the National Bureau of Statistics (NBS).


NBS data showed the income gap between China's urban and rural residents continued to narrow Wholesale Ken Griffey Jersey , with the real growth of per capita disposable income in rural areas 0.9 percentage point higher than that in urban regions.


The average per capita disposable income for rural residents reached 9,778 yuan from January to September, up 7.5 percent after deducting price factors, while that of urban residents increased to 27,430 yuan, up 6.6 percent after deducting price factors.


Per capita consumption averaged 13 Wholesale Tony Perez Jersey ,162 yuan, up 7.5 percent from the same period last year. The inflation-adjusted growth was 5.9 percent.


More rural workers left their hometowns in the first three quarters, according to NBS data.


Some 179.69 million rural laborers were working outside their hometowns as of the end of September, up by 1.8 percent or 3.2 million people compared with one year earlier. Their average monthly income grew 7.0 percent to 3,459 yuan in the third quarter.




BEIJING, March 6 (Xinhua) -- There has never been so absurd a report as the one by UK MPs claiming a region that used to be under British colonial rule for nearly a century has become less free since its return to China.


Under China's Basic Law and decisions of its top legislature Wholesale Reggie Sanders Jersey , more than five million qualified voters in the Hong Kong Special Administrative Region (HKSAR) will be able to have a say in who will become their chief executive in 2017 through the "one man, one vote" election. This was never realized under British colonial rule.


Despite the Chinese central government's commitment to achieving the goal, however, UK parliament's foreign affairs committee released a report on Thursday saying Hong Kong is facing a "crisis of governance" and its high degree of autonomy from China is being "eroded".


It follows Beijing's decision not to use a public nomination system for the election of the next HKSAR chief executive, and police's dispersal of protesters who had gathered in Hong Kong in objection to the decision.


The wording of the report shows that these British MPs are hostile to Hong Kong's development an. Cheap NFL Jerseys Cheap Nike NFL Shirts Cheap Nike NBA Hats Cheap Adidas NHL Hoodies Cheap NCAA Jerseys China Cheap MLB Hats China Cheap College Jerseys Free Shipping Wholesale Jerseys China Cheap NBA Basketball Jerseys Wholesale Jerseys

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