In peace time, the US government used to spend very little on defense, about one percent of GDP. But that changed after World War II when the United States found itself in a global contest against Communism. Ever since, defense spending has never been less than 3.6 percent of GDP.ut 9/11, the terrorist attack on iconic US buildings in 2001, changed that, and defense spending began a substantial increase in two stages. First, it increased to 4.6 percent by 2005 for the invasion of Iraq, and then to 5.0 percent in 2008 for the the surge in Iraq.
The most noticeable difference is the sensation. A whirlpoolâs water jets come with the classic, high pressure, deep massaging jets that most people have come to associate with hydrotherapy. An air tub, on the other hand, is a more generalized, effervescent feeling.he most noticeable difference is the sensation. A whirlpoolâs water jets come with the classic, high pressure, deep massaging jets that most people have come to associate with hydrotherapy. An air tub, on the other hand, is a more generalized, effervescent feeling.
The exposed dirt floor emits moisture into the air, this is compounded by the high summer humidity that is delivered via the crawl space foundation vents and gaps in the rim joist and sill plate. Research has shown that water vapor in the air is exchanged simultaneously between the outside air and the crawl space. In other words the moisture in the air outside your crawl space will equal the moisture in the air inside your crawl space at all times regardless of whether the metal vents are open or closed.