 | World Trade Center 7 Collapse / Demolition? 7 World Trade Center was a 47-story steel-framed skyscraper that stood across Vesey Street north of the main WTC complex. Its tenants included the CIA, Department of Defense, IRS, Secret Service, the Securities and Exchange Commission and the City of New York emergency management center. Though not hit by a plane, it collapsed at about 5:20 p.m. EDT on the evening of September 11, 2001. Some journalists commenting on the nature of the collapse of WTC 7 said that it resembled a controlled demolition, although the explanation that fires in the building, started by falling debris from the collapse of WTC 1, had caused the structure to fail, quickly emerged. No steel-frame high rise had ever before collapsed because of a fire.[31] BBC News reported the collapse of WTC 7 twenty minutes before it actually fell. The BBC has stated that many news sources were reporting the imminent collapse of WTC 7 on the day of the attacks. The reporter who announced the collapse prematurely Jane Stanley called it a "very small and very honest mistake" caused by her thinking on her feet after being confronted with a report she had no way of checking. In addition to its remaining unexplained, proponents of controlled demolition often emphasize the collapse of WTC 7 because its collapse looked like a bottom-to-top conventional controlled demolition, as opposed to the more explosive top-to-bottom collapses of the two main towers. Support for this theory comes from features argued to have been visually observed in the collapse--the speed of the collapse, the way it fell down vertically and symmetrically, the rapid onset, the way the center of the roof fell first, lateral ejections of debris observed, and the way the rubble fell mostly within the building's footprint.[citation needed] The initial FEMA investigation team also found sulfur within the structural steel from WTC 7 which they could not explain: "The severe corrosion and subsequent erosion of Samples 1 and 2 are a very unusual event. No clear explanation for the source of the sulfur has been identified. The rate of corrosion is also unknown. It is possible that this is the result of long-term heating in the ground following the collapse of the buildings. It is also possible that the phenomenon started prior to collapse and accelerated the weakening of the steel structure. A detailed study into the mechanisms of this phenomenon is needed to determine what risk, if any, is presented to existing steel structures exposed to severe and long-burning fires." Steven Jones claims that sulphur is evidence that indicates the use of explosives such as thermate, along with reports of molten metal and extremely high temperatures in the rubble. However, Prof. Richard Sisson asserts that the sulfur came from gypsum in the wallboards. WTC 7 at the moment of collapse: the shape of the roof and debris plumes are cited as evidence for controlled demolition.In the PBS documentary America Rebuilds, which aired in September 2002, Larry Silverstein, the owner of WTC 7 and leaseholder and insurance policy holder for the remainder of the WTC Complex, recalled a discussion with the fire department in which doubts about containing the fires were expressed. Silverstein recalled saying, "We've had such terrible loss of life, maybe the smartest thing to do is pull it". "They made that decision to pull", he recalled, "and we watched the building collapse." Some proponents of the controlled demolition hypothesis have taken the remark as a confession that he ordered the building to be demolished. Silverstein issued a statement that rejects this interpretation, asserting that it was the firefighting team, not the building, that was to be pulled. Hugo Bachmann and Jörg Schneider, professors emeritus of structural engineering at the Swiss Federal Institute of Technology, believe that WTC 7 was intentionally demolished based on video footage. The 9/11 Family Steering Committee also asked what happened to WTC 7 in their 'Questions Regarding the 9/11 Commission Interview of Mayor Rudy Giuliani,' asking, "On 9/11, no aircraft hit WTC 7. Why did the building fall at 5:20 PM that evening?" |
 | Water Damage Water is responsible for millions of dollars in damage to homes every year. Candysse Miller of the Insurance Information Network of California says if homeowners took just 10 minutes a years to inspect their homes for water damage and corrosion, they could save themselves time, aggravation and money. The Insurance Information Institute says look for old and worn out water hoses on your washing machine and dishwasher, Check your water pressure, be sure to ventilate your bathrooms. Plumber, Eric Brockmire, says know where the main water-shut off valve is located in your home. Nanette McElman of the Institute for Business and Home Safety homeowners should inspect their homes for leaks. |
 | The world-famous bronze sword--4 Nearly 2400 years late,this top class of sword has been imitated and reproduced successfully by Xu Guangguo,the sword-casting master in Yingdu Bronze Art Institute of Jingzhou City.It took him as long as 14 years to work on the imitation reproduction work At last.he made vitally important breakthroughs in 5 key technologies,i.e.bird inscription letters,anti-corrosion trcatment proccss,smclt of mctals proportioning,fake proof and tiny carve,cast with high degrees of precision (a combination of ancient ceramics-making process with modern scientific processing methods). His success makes it possible for people to appreciate glamour and beauty of the imitation with high degree of precision.IIis imitation craftsmanship is honored as a miracle in the aspect of high precision of imitation reproduction for ancient bronze wares. |
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