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.
This is the oldest stone house in Europe. It was originally part of a Neolithic farmstead. Radiocarbon dating shows that it was standing since 3700 BC to 3100 BC, or up to 5,500 years ago. Now this site is in the care of Historic Scotland. It is the third among oldest buildings in the world. See also; Top 10 Wonders of the Ancient World. 2. Megalithic Temples of Malta. These Temples on the island country of Malta have been claimed as the oldest free-standing structures in world.