We choose our representatives based upon their ideologies and their thinking upon various social issues that matter to us. It is these legislators that decide on principles that are rules guiding the working of a government. An elected government has many matters to look after in the spheres of health, education, environment, economy etc and it is the guiding principles or the policies of the government that finally decide the shape of laws made in all walks of life. Though laws are outcomes of policies of a government, they are different from policies as will be clear from this article. Policies are objectives that an organization or a government sets for itself to achieve in a given period of time, and laws are the tools that help a government achieve these objectives. For example, a government may have views in the sphere of health and education with certain objectives in mind.
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In particle physics and physical cosmology , Planck units are a set of units of measurement defined exclusively in terms of four universal physical constants , in such a manner that these physical constants take on the numerical value of 1 when expressed in terms of these units. Originally proposed in by German physicist Max Planck , these units are a system of natural units because the origin of their definition comes only from properties of nature and not from any human construct. Planck units are only one of several systems of natural units, but Planck units are not based on properties of any prototype object or particle the choice of which is inherently arbitrary , but rather on only the properties of free space. They are relevant in research on unified theories such as quantum gravity. The term Planck scale refers to quantities of space, time, energy and other units that are similar in magnitude to corresponding Planck units. At the Planck scale, the predictions of the Standard Model , quantum field theory and general relativity are not expected to apply, and quantum effects of gravity are expected to dominate. The four universal constants that, by definition, have a numeric value 1 when expressed in these units are:.
What Is the Difference Between Relative and Absolute Age?
Radiometric dating , radioactive dating or radioisotope dating is a technique which is used to date materials such as rocks or carbon , in which trace radioactive impurities were selectively incorporated when they were formed. The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay. Together with stratigraphic principles , radiometric dating methods are used in geochronology to establish the geologic time scale. By allowing the establishment of geological timescales, it provides a significant source of information about the ages of fossils and the deduced rates of evolutionary change.
Delhi is one of the oldest cities in the world , and has been continuously inhabited since the 6th century BCE. The city has been captured, ransacked and rebuilt several times, particularly during the medieval period, and modern Delhi is a cluster of a number of cities spread across the metropolitan region. For many centuries Delhi has been a dominant trading and commercial centre in northern India , and after s it has emerged as an important node in the international corporate and financial network. A union territory , the political administration of the NCT of Delhi today more closely resembles that of a state of India, with its own legislature, high court and an executive council of ministers headed by a Chief Minister.