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Showing posts from January, 2013

Gaya Van Der Walls

1.        Dipol – dipol Molekul dengan sebaran elektron tidak simetris akan bersifat polar. Molekul ini akan memiliki perbedaan muatan (dipol) yang menyebabkan bersifat polar. Contoh : dipol – dipol yang terjadi antara molekul HCl 2.        Dipol sesaat Elektron akan senantiasa bergerak dalam orbital. Perpindahan elektron dari satu orbital ke orbital lain mengakibatkan suatu molekul yang tadinya bersifat nonpolar dapat menjadi polar. Sehingga timbul dipol (polar) sesaat. Dipol tersebut disebut sesaat karena dapat berubah jutaan kali setiap    detiknya. Hal ini disebabkan adanya tarikan antara elektron satu molekul dan inti molekul lain. Contoh dipol sesaat pada molekul Br 2 3.        Gaya London Suatu getaran dalam sebuah molekul mengimbas suatu geseran dalam elektron-elektron molekul tetangga. Tarikan lemah ini pertama kali diuraikan oleh ilmuwan fisika, berasal dari Jerman, FritzLondon (dikena

Dubai Land

  World's Largest Projects: Dubailand Dubailand consists of a 3 billion square development and when completed will be the world’s biggest theme park, twice the size of Walt Disney World . Over 55 hotels, seven themes areas, including Theme parks, culture & art, science & planetariums, sports & sports academies, wellbeing & health, shopping & retail and resorts & hotels will form part of this mega project. World's Largest: Dubailand Status Tatweer Parks is currently back in talks with Universal Studios and Merlin Entertainment about building those theme parks that they announced a few years ago. They want to focus entirely on building only Universal Studios Dubailand and Legoland Dubai, and then later continue on this large amazing mega project. Dubai Properties Group said earlier this week that it planned to unveil a revised masterplan for the mega-project later this year. Dubai developer Diamond said in April it planned to build 2,50

World's Largest Construction Projects- ISS

World's Largest Construction Projects- ISS World's Largest construction projects... Hold on a minute. This project is literally out of this world, and it is the International Space Station . On the top four of the largest construction projects ever made, the International Space Station is a one of a kind construction being made by an inter-governmental space agencies . World's Largest : ISS Construction The ISS construction cost will be somewhere between $50 billion and $100 billion , and its finally completed as of May 27, 2011 . The latest addition of a laser-equipped boom for the station's robot arm has been the final piece attached to the ISS. The ISS has a mass of approximately 400,000 kilograms, delivering 100 Kw of power , a pressurized volume of approximately 1,000 cubic meters, a truss 108.4 meters long, modules 74 meters long, and a crew of six. The construction process took more than 40 flights, several unmanned flights and precise logistic

Egypt: South Valley Development

South Valley Development - Egypt South Valley Development in Egypt is one of the world's largest construction project, also known as the Toshka Project. Located near the town of Toshka on the northern part of Lake Nasser, the South Valley Development consists of a massive pumping station, Mubarak pumping station, working to drive more than five cubic meters of water per year into the Sheikh Zayed Canal. This canal has been named for Sheik Zayed Bin Sultan El Nahayan, president of the UAE. South Valley Development Origins Egypt population outside the Valley and Delta sector is minimal, and they occupy only five percent of its land extension. Starting on 1999 the South Valley Development project is trying to create living areas and suburbs along the South Valley area with this new line of water and new infrastructure being build. The project's expected date of completion in 2017. The water transported along the canal will irrigate 226,800 hectares of government-

Top Ten Largest Construction Projects

Here we present a list of the top 10 Largest Construction Projects. The World's Largest construction project list can change from time to time, but these great construction projects will be remembered by many humans around the world and how they help thousands of communities. World's Largest construction projects goes from our planet up to the outer space, where you can find also some amazing projects. 1. South Valley Development, Egypt Photo NASA Goddard Photo and Video Trying to disperse Egyptian population to other areas, there are some major development going on in the Sahara desert. Water is being transported and made accessible as the first sign of major construction. The first stage of this mega-project was the Mubarak Pump Stations, completed in 2003. There is no question that this is the world’s biggest pumping station, with the capacity to handle 25 million cubic meters per day. Nile river water is pumped into the Sheikh Zayed Canal, a 72-kilome

Most tallest building in the world

1. World's Tallest Building: Burj Khalifa in Dubai , United Arab Emirates. Completed in January 2010 with 160 stories which reach 2,716 feet (828 meters) high! 2. Asia's Tallest Building: Taipei 101 in Taipei, Taiwan . Completed in 2004 with 101 stories and a height of 1667 feet (508 meters). 3. China's Tallest Building: Shanghai World Financial Center in Shanghai, China. Completed in 2008 with 101 stories and a height of 1614 feet (492 meters). 4. International Commerce Centre in Hong Kong, China. The International Commerce Centre was completed in 2010 with 108 stories and a height of 1588 feet (484 meters). 5 and 6 (tie). Formerly the world's tallest buildings and known for their distinctive appearance, the Petronas Tower 1 and Petronas Tower 2 in Kuala Lumpur, Malaysia have gradually been moved down the list of the world's tallest buildings. The Pertonas Towers were completed in 1998 with 88 stories and are each 1483 feet (452 meters) tall.

Pengeboran

Informasi kondisi tanah dasar fondasi, dapat diperoleh dengan cara menggali lubang secara langsung di permukaan tanah yang disebut lubang uji (test-pit), maupun dengan cara pengeboran tanah. Penyelidikan mendetail dengan pengeboran tanah yang diikuti dengan pengujian-pengujian dilaboraturium dan atau dilapangan, selaludilakukan untuk penyelidikan tanah pada proyek-proyek besar seperti : gedung bertingkat tinggi, jembatan, bendungan, bangunan industri, dll. Penyelidikan tanah terdiri dari 3 tahap yaitu : pengeboran atau penggalian lubang uji, pengambilan contoh tanah (sampling) dan pengujian contoh tanah. Pengujian contoh tanah dapat dilakukan di laboraturium atau dilapangan. Bergantung pada tingkat ketelitian yang dikehendaki, pengam \bilan contoh tanah dilakukan pada setiap jarak kedalaman0,75-2 meter dengan cara menekan tabung contoh tanah (sampler) secara hati-hati (terutama untuk contoh tak terganggu) yang dipasang pada ujung bawah batang bor. Pada waktu pengeboran dilakukan, conto