What is Google PageRank?

Google page rank meaning?

1 Answer In: Technology By: admin [7 ]

How many bird species found in Afghanistan?

bird species recorded in Afghanistan

1 Answer In: Geography By: admin [7 ]

What are basic concerns of Anthropology?

the concerns of Anthropology

1 Answer In: Culture and the Arts By: admin [7 ]

What is Anthropology?

what is the definition of Anthropology

1 Answer In: Culture and the Arts By: admin [7 ]

An observer outside gravitational fields measures the speed of light locally (in his location) at 299792.458 km/s but when he looks towards a black hole he sees the speed of light there to be as slow as a few meters/s. At the same time an observer freefalling into that black hole measures the speed of light locally (in his location) at 299792.458 km/s; when he looks towards the black hole he sees the speed of light there much slower; when he looks away from the black hole he sees the speed of light there much faster.
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PageRank is a link analysis algorithm, named after Larry Page and used by the Google Internet search engine, that assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of “measuring” its relative importance within the set. The algorithm may be applied to any collection of entities with reciprocal quotations and references. The numerical weight that it assigns to any given element E is referred to as the PageRank of E and denoted by PR(E).
Source: Wikipedia

Afghanistan includes a total of 499 species, of which 1 has been introduced by humans, and 2 are rare or accidental. 17 species are globally threatened.

Acid rain damages soil and the tree roots in it. When soil is acidified, tree roots are damaged, leaving them not able to draw in enough nutrients to support the tree. When acid rain falls on trees, it makes their leaves turn brownish-yellow and the tree can no longer carry out photosynthesis properly.

Its basic concerns are following.
What defines human life and society?
How are social relations among humans organized?
Who are the ancestors of modern Homo sapiens?
What are humans’ physical traits?
How do humans behave?
Why are there variations among different groups of humans?
How has the evolutionary past of Homo sapiens influenced its social organization and culture?

It is the study of humanity. It has origins in the humanities, the natural sciences, and the social sciences.