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The geographic poles are defined by the points on the surface of Earth that are intersected by the axis of rotation. The pole shift hypothesis describes a change in location of these poles with respect to the underlying surface – a phenomenon distinct from the changes in axial orientation with respect to the plane of the ecliptic that are caused by precession and nutation, and is an ...
The images at right attempt to explain the relation between the precession of the Earth's axis and the shift in the equinoxes. These images show the position of the Earth's axis on the celestial sphere, a fictitious sphere which places the stars according to their position as seen from Earth, regardless of their actual distance. The first image ...
Unionization is the creation and growth of modern trade unions. Trade unions were often seen as a left-wing, socialist concept, [1] whose popularity has increased during the 19th century when a rise in industrial capitalism saw a decrease in motives for up-keeping workers' rights. [2] Workers usually create unions when they face a certain ...
The study included data from 1993 through 2010, and showed that the pumping of as much as 2,150 gigatons of groundwater has caused a change in the Earth’s tilt of roughly 31.5 inches. The ...
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There is no record of enduring trade unions existing prior to the 18th century. [16] Beginning from 1700 onward there are records of complaints in the United Kingdom, which increase through the century, that show instances of labourers "combining" together to raise wages had become a phenomenon in various regions and professions. [ 17 ]
Earth’s inner core, a red-hot ball of iron 1,800 miles below our feet, stopped spinning recently, and it may now be reversing directions, according to an analysis of seismic activity.
Labor unions first developed in Costa Rica in the late 1880s. [26] The first unions were organized with the help of the Catholic Church. [27] By 1913, the first International Workers Day was celebrated and unions, supported in particular by the Popular Vanguard Party, [27] pushed for Alfredo González Flores' tax reforms. Unions grew in number ...