This article discusses that tools of improvement do not always fit the hand in need. El Salvador lies in Central America. In the north–south split between the have and have-not countries, it clearly falls in the south. According to the World Bank, gross national income per capita is $2,200, compared with an average of a little more than $2,900 for all of Latin America and the Caribbean. In the developed world, per capita income is closer to $26,000. It is estimated that more than 40 percent of the 6.5 million people in El Salvador live below the poverty line; that is, they make so little that they cannot buy all the necessities of life. Backed by funds from Europe, the team finished three rural installations in the two and a half years between late 1999 and the middle of 2002. Rivas and the team are still working on the mechanical design. They have come up with a new adjustment mechanism that is easier to operate than the plate and pin system. This version uses a cable that attaches to hooks at various elevations on the support post to adjust the incline.

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