แสดงบทความที่มีป้ายกำกับ History แสดงบทความทั้งหมด
แสดงบทความที่มีป้ายกำกับ History แสดงบทความทั้งหมด

วันเสาร์ที่ 18 กุมภาพันธ์ พ.ศ. 2555

Lowry Ave Bridge, Minneapolis History Landmark. Gone in the morning!

Minneapolis HIstory. I went and said goodbye. I don't know if I'll be there for the blast, but I'll try to make it! Lowry Avenue Bridge removal implosion on June 21 The Lowry Avenue Bridge, a Minneapolis landmark since 1905, will be removed by implosion at 9 am Sunday, June 21. The current structure, which has been closed since April 2008, must be removed before construction can begin on the replacement bridge this fall. Due to lack of structural integrity, imploding the current structure is the safest option available to workers, and results in minimal disruption to the environment and river navigation. The implosion will sever what remains of the steel trusses, dropping them into the river; residents should expect to hear a loud, deep, boom-like sound. Preliminary dismantling already has taken place. The county plans to salvage, recycle or reuse more than 90 tons of steel and other related items. Implosion contractor Advanced Explosives Demolition Inc. has designated a 1000 ft. horizontal (land) and 1000 ft. vertical (air) safety zone because of expected air pressure vibrations. This area will need to be vacated the morning of the implosion. The Lowry Avenue N. road closure will expand to include from N. 2nd Street to Grand Street NE, and Marshall Street NE will close from 23rd Avenue NE to 26th Avenue NE with a signed detour, the morning of June 21. The industrial zoning of the neighborhood and heavy tree line along the Mississippi River shore means there is limited-to ...



http://www.youtube.com/watch?v=uUdmBr2bGRw&hl=en

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วันพุธที่ 5 พฤษภาคม พ.ศ. 2553

History of EPS Foam (Aka Styrofoam Foam) Floatation / Flotation Devices Expanded Polystyrene Boat

Introduction Expanded polystyrene (EPS) can be used for a variety of floatation devices, such as rafts, docks and billets. Buoyancy billets are usually produced in standard sizes but can be easily customized. They are suitable for fresh and salt water and are unaffected by winter temperatures. EPS billets can support 55 lbs. per cubic foot, which is significantly more than typical wood floatation devices. Since EPS is lightweight and easy to work with, installation and maintenance costs are low. EPS buoyancy systems are safe for the environment. They are ozone friendly, no CFCs are used in their production, and they have no food value for marine animals. Growth of marine life in stagnant water does not impa ir the buoyancy of the billet and can be easily removed with a scraper. EPS floatation structures exhibit excellent rebound characteristics with minimum rocking, provide less resistance to breaking waves and are quieter than those with other types of floatation such as drum floats. Floatation: In summer months, it is not unusual to find the nearest watering hole filled with people escaping the heat and enjoying the water as well as sights and sounds. Many water-related activities are made safer with the use of expanded polystyrene (EPS) from floating docks to life-saving devices and buoys to surf and boogie boards. Whether you recognize it or not, EPS is everywhere on the waterfront. Floatation devices have evolved over the years due to the introduction of new ...



http://www.youtube.com/watch?v=cxs35wit3dg&hl=en

Drainage Works

วันเสาร์ที่ 24 เมษายน พ.ศ. 2553

History of EPS foam (aka Styrofoam Foam) buoyancy / flotation devices Boat polystyrene foam

Introduction polystyrene (EPS) may for a variety of swimming aids, as are rafts, docks, and used sticks. Life jackets are generally manufactured in standard sizes of stick, but can be easily adjusted. They are suitable for freshwater and saltwater and are independent of the cold season. EPS can support stick 55 pounds. per cubic foot, significantly longer than the typical wood is swimming aid. Since EPS is easy to handle and easy installation and maintenance costs arelow. Lifts EPS are environmentally safe. It is ozone, no CFCs are used in their production and have no food for marine animals. The growth of marine life in order, not water ir IMPA flotation billet and can be easily removed with a spatula. EPS floating structures have excellent properties with a minimum of bounce swings, offer less resistance to breakage and the waves are quieter than those with other types of aid such as swimming drumswims. Buoyancy: In the summer months is not uncommon for the nearest watering hole to escape to find full of people enjoying the heat and water as well as images and sounds. Many water activities are safer with the use of expanded polystyrene (EPS) of floating dock made for rescue equipment and buoys for surfing and boogie boards. If you realize it or not, EPS is everywhere on the coast. Swimming Aids over the years, due to the introduction of new...



http://www.youtube.com/watch?v=cxs35wit3dg&hl=en

Concrete Structures

วันพฤหัสบดีที่ 22 เมษายน พ.ศ. 2553

Horton House Living History

Visit Jekyll Island's Horton House, one of the oldest standing tabby structures in Georgia, where colonial re-enactors and interpretive guides will demonstrate 18th-century activities and present the story of the Spanish raid on Jekyll Island following the Battle of Bloody Marsh. Saturday, July 12, 2008, 2:00 pm. Co-sponsored by Fort Frederica National Monument and the Jekyll Island Museum. For more information, call 912-635-4036.



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