'Rigveda' is an ancient Indian religious book. It is counted as one of the four sacred Hindu writings, which are called Vedas. It is the world's oldest religious writings. It is also one of the oldest writings in Sanskrit language. Rigveda is very important to Hindus, especially Hindus in India and Nepal. Its words are said during prayers and religious gatherings. It is dated up to 4000 years ago but on the basis of astronomical calculations it is dated back to 8000 years and some calculations date back it to 10,000 years.
Rig Veda mainly contains various hymns for praying to Vedic Gods such as Agni (Fire God), Indra (The lord of Heavens), Mitra, Varuna (Water God), Surya (Sun God) etc. These hymns are called Riks. Hence the Veda is called Rik-Veda or RigVeda. This writing consists of 10 writings. The Rigveda has 1,028 hymns and 10,600 verses.
Ecozone
An ecozone or biogeographic realm is the largest scale biogeographic division of the earth's surface.
These divisions are based on the historic and evolutionary distribution of plants and animals. Ecozones represent large areas of the Earth surface where plants and animals developed in relative isolation over long periods of time, and are separated from one another by geologic features, such as oceans, broad deserts, or high mountain ranges, that formed barriers to plant and animal migration. Ecozones correspond to the floristic kingdoms of botany or zoogeographic regions of mammal zoology.
Ecozones are characterized by the evolutionary history of the plants and animals they contain. As such, they are distinct from biomes, also known as major habitat types, which are divisions of the earth's surface based on "life form", or the adaptation of plants and animals to climatic, soil, and other conditions. Biomes are characterized by similar climax vegetation, regardless of the evolutionary lineage of the specific plants and animals. Each ecozone may include a number of different biomes. A tropical forest in Central America, for example, may be similar to one in New Guinea in its vegetation type, but these forests are inhabited by plants and animals with very different evolutionary histories.
The patterns of plant and animal distribution in the world's ecozones was shaped by the process of plate tectonics, which has redistributed the world's land masses over geological history.
The term ecozone, as used here, is a fairly recent development, and other terms, including kingdom, realm, and region, are used by other authorities with the same meaning. J. Schultz uses the term "ecozone" to refer his classification system of biomes.
In 1975 Miklos Udvardy proposed a system of 203 biogeographical provinces, which were grouped into eight biogeographical realms (Afrotropical, Antarctic, Australian, Indomalayan, Nearctic, Neotropical, Oceanian, and Palaearctic). Udvardy's goal was to create an integrated ecological land classification system that could be used for conservation purposes.
The WWF ecozones are based largely on the biogeographic realms of Pielou (1979) and Udvardy (1975). A team of biologists convened by the World Wide Fund for Nature (WWF) developed a system of eight biogeographic realms (ecozones) as part of their delineation of the world's over 800 terrestrial ecoregions.
The WWF scheme is broadly similar to Udvardy's system, the chief difference being the delineation of the Australasian ecozone relative to the Antarctic, Oceanic, and Indomalayan ecozones. In the WWF system, The Australasia ecozone includes Australia, Tasmania, the islands of Wallacea, New Guinea, the East Melanesian islands, New Caledonia, and New Zealand. Udvardy's Australian realm includes only Australia and Tasmania; he places Wallacea in the Indomalayan Realm, New Guinea, New Caledonia, and East Melanesia in the Oceanian Realm, and New Zealand in the Antarctic Realm.
Amorphous solid
An amorphous solid does not have a definite geometric or crystalline shape. It is a solid in which there is no long-term order in the positions of the atoms. Most classes of solid materials can be found or prepared in an amorphous form. For instance, common window glass is an amorphous ceramic, many polymers are amorphous, and even foods such as cotton candy and cotton are amorphous solids.
An amorphous solid is any noncrystalline solid in which the atoms and molecules are not organized in a definite lattice pattern. Such solids include glass, plastic, and gel.
Solids and liquids are both forms of condensed matter; both are composed of atoms in close proximity to each other. But their properties are, of course, enormously different. While a solid material has both a well-defined volume and a well-defined shape, a liquid has a well-defined volume but a shape that depends on the shape of the container. Stated differently, a solid exhibits resistance to shear stress while a liquid does not. Externally applied forces can twist or bend or distort a solid’s shape, but (provided the forces have not exceeded the solid’s elastic limit) it “springs back” to its original shape when the forces are removed. A liquid flows under the action of an external force; it does not hold its shape. These macroscopic characteristics constitute the essential distinctions: a liquid flows, lacks a definite shape (though its volume is definite), and cannot withstand a shear stress; a solid does not flow, has a definite shape, and exhibits elastic stiffness against shear stress.
Climate commitment studies
Climate commitment describes the fact that climate reacts slowly to factors ("climate forcings") such as greenhouse gases. Climate commitment studies attempt to measure the amount of future warming that is "committed" under the assumption of some constant level of forcings.
Plane
Plane or planes may refer to:
Slipknot
Slipknot is an American heavy metal band from Des Moines, Iowa. Slipknot has eight members in the band. The current band members are Sid Wilson, Jim Root, Craig Jones, Shawn Crahan, Mick Thomson, Corey Taylor, Alessandro Venturella and Jay Weinberg. The first bassist from Slipknot, Paul Gray, died from an accidental drug overdose in 2010. Also, Joey Jordison was forced to leave the band. He is now working on his own projects. The surviving band members wear masks. Percussionist Chris Fehn also left the band due to suing band mates Shawn Crahan and Corey Taylor for allegedly duping him out of money in 2019. The band has sold almost 15 million records worldwide.
In September 1995 a band was formed called The Pale Ones. The band had Shawn Crahan on drums, Paul Gray on bass, Anders Colsefini on vocals and Donnie Steele on guitar. Later Joey Jordison joined and became drummer, Crahan became a Percussionist. The band also hired guitarist Josh Brainard and moved Colsefini to percussion and vocals. The band performed their first concert on December 4, 1995, then they were called Meld. Joey Jordison suggested naming the band Slipknot, after a song they had made. The band started wearing masks because Shawn Crahan wore a clown mask and to get better into the music.
In February Steele left the band because of religious beliefs. Craig Jones was hired as a replacement. Jones later became their full-time sampler. They hired Mick Thomson as a replacement guitarist. On October 31, 1996, Slipknot released their first demo Mate.Feed.Kill.Repeat.
The band realized that their new songs needed more vocal melody, so they hired Corey Taylor. Colsefini became just a percussionist. At a show Colsefini announced that he was leaving the band. He was replaced by Greg Welts but he was fired from the band because he was lazy. Chris Fehn was hired as percussionist. In 1997 the band gave themselves numbers and wore coveralls while performing.
In 1998 DJ Sid Wilson joined after impressing the band. In 1999 Brainard decided to leave the band for personal reasons. Jim Root was his replacement. This left the band with the line-up they kept until 2010.