Polyurethane fabrics can be manufactured in different thicknesses, depending on their intended use. For example, fabric used in diapers may be thinner than fabrics used for camping gear. Polyurethane fabrics are manufactured to feature a variety of characteristics. In situations where fuel contact is likely, the fabric can be made fire-retardant.
Oldest Wooden Building in the World. World's Oldest Wooden Building, is a five-story pagoda, part of HÅryÅ«-ji (Meaning: Temple of the Flourishing Law) Buddhist temple complex in Ikaruga, Nara Prefecture, Japan. The temple complex was completed in 607 AD.
In 2008, peculiar circumstances led to the discovery of the world's oldest individual from a clonal tree: Old Tjikko, a 9,550-year-old Norway spruce located the in FulufjÃ¤llet Mountains in Sweden, according to scientists at UmeÃ¥ University. Old Tjikko is suspected to be the only living trunk of an ancient clonal colony like the Pando.