An astrolabe<span> is an elaborate </span>inclinometer<span>, historically used by </span>astronomers<span> and </span>navigators<span>, to measure the </span>inclined position<span> in the sky of a </span>celestial body<span>, day or night. It can thus be used to identify stars or planets, to determine local latitude given local time and vice versa, to survey, or to </span>triangulate<span>.</span>
Athens, Sparta, or Macedonia was three of the larger city states that ruled almost anything it touched.<span />
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<u>The factors which affect development</u>, apart from the ones contained in the HDI index are the following:
- Equality
- Infrastructure
- Social programs
- Stability.
The Human Development Index (HDI) is a statistical index which gathers different components related to life expectancy, education level and GDP per capita figures.
In 2010, the inequality-adjusted HDI was implemented, known as IHDI. It accounts better for development, as it contains information on the net wealth per capita and the relative quality of goods in different countries.
Social programs and infraestructure are also signs of development or underdevelopment. Better quality infrastructures pertain to countries with more advanced production systems and allow more effective trade and other types of communications.
Countries with serious institutions, able to enforce the law, are more likely free of corruption and in turn, and these factors bring stability and reliability on the public sector. Moreover, it is managed more efficiently and usually more money is directed to social programs that enhace the welfare of the citizens.
