Early civilizations[ edit ] Early civilizations constructed divisions in the day, but none used the term second, and none was a precursor to the modern second: The Egyptians since BC subdivided daytime and nighttime into twelve hours each, hence the seasonal variation of the length of their hours, and the differences in length between daytime and nighttime hours in any given day. The Hellenistic astronomers Hipparchus c. AD subdivided the day into sixty parts the sexagesimal system. No sexagesimal unit of the day was ever used as an independent unit of time. Based on subdivisions of the moon cycle[ edit ] Circa , the Persian scholar al-Biruni , writing in Arabic, used the term second, and defined the division of time between new moons of certain specific weeks as a number of days, hours, minutes, seconds, thirds, and fourths after noon Sunday. The second became accurately measurable with the development of mechanical clocks keeping mean time, as opposed to the apparent time displayed by sundials.
Generally, a victim is contacted by someone online through various social media or a legitimate dating website. The victim and the scammer create an online relationship. While the victim may become suspicious overtime, the scammer lures them in with pictures, hardships, promises, excitement, and claims of love. Eventually, the scammer will ask for help, for various reasons, involving the victim sending money.
Historical dimensions for the cubit are provided by scripture and pyramid documentation. Additional dimensions from the Middle East are found in other early documents. Two major dimensions emerge from a history of the cubit. The first is the anthropological or short cubit, and the second is the architectual or long cubit. The wide geographical area and long chronological period suggest that.
A Abbreviations This information is included in Appendix A: Abbreviations , which includes all abbreviations and acronyms used in the Factbook, with their expansions. Acronyms An acronym is an abbreviation coined from the initial letter of each successive word in a term or phrase. In general, an acronym made up of more than the first letter of the major words in the expanded form is rendered with only an initial capital letter Comsat from Communications Satellite Corporation; an exception would be NAM from Nonaligned Movement.
Administrative divisions This entry generally gives the numbers, designatory terms, and first-order administrative divisions as approved by the US Board on Geographic Names BGN. Changes that have been reported but not yet acted on by the BGN are noted. Geographic names conform to spellings approved by the BGN with the exception of the omission of diacritical marks and special characters. Age structure This entry provides the distribution of the population according to age.
Information is included by sex and age group as follows: The age structure of a population affects a nation’s key socioeconomic issues. Countries with young populations high percentage under age 15 need to invest more in schools, while countries with older populations high percentage ages 65 and over need to invest more in the health sector. The age structure can also be used to help predict potential political issues.
This is an open access article distributed under the Creative Commons Attribution License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Historical dimensions for the cubit are provided by scripture and pyramid documentation.
Additional dimensions from the Middle East are found in other early documents. Two major dimensions emerge from a history of the cubit.
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See Article History Abiogenesis, the idea that life arose from nonlife more than 3. Abiogenesis proposes that the first life-forms generated were very simple and through a gradual process became increasingly complex. Although many equate abiogenesis with the archaic theory of spontaneous generation , the two ideas are quite different. According to the latter, complex life e. While the hypothetical process of spontaneous generation was disproved as early as the 17th century and decisively rejected in the 19th century, abiogenesis has been neither proved nor disproved.
Haldane and Russian biochemist Aleksandr Oparin independently set forth similar ideas concerning the conditions required for the origin of life on Earth. Both believed that organic molecules could be formed from abiogenic materials in the presence of an external energy source e. Both also suspected that the first life-forms appeared in the warm, primitive ocean and were heterotrophic obtaining preformed nutrients from the compounds in existence on early Earth rather than autotrophic generating food and nutrients from sunlight or inorganic materials.
Radioactive materials are all around us. Some are beneficial, while others may cause us harm. In this lesson you’ll learn what radioactive materials are and explore where they come from and how they can be useful to us. Everything on Earth is made of atoms, but you can see that not everything on Earth is the same. This is because everything is made of different types of atoms called elements.
Is myriad a noun?: Usage Guide. Noun. Recent criticism of the use of myriad as a noun, both in the plural form myriads and in the phrase a myriad of, seems to reflect a mistaken belief that the word was originally and is still properly only an the entries here show, however, the noun is in fact the older form, dating to the 16th century.
READ MORE Properties, occurrence, and uses Potassium metal is soft and white with a silvery lustre, has a low melting point , and is a good conductor of heat and electricity. Potassium imparts a lavender colour to a flame, and its vapour is green. Potash mine at Esterhazy, Sask. The waste liquors from certain saltworks may contain up to 40 grams per litre of potassium chloride and are used as a source of potassium.
K Most potassium is present in igneous rocks, shale, and sediment in minerals such as muscovite and orthoclase feldspar that are insoluble in water; this makes potassium difficult to obtain. Molten KCl is continuously fed into a packed distillation column while sodium vapour is passed up through the column.
Historical Bases of the Right To Keep and Bear Arms
Form[ edit ] The chacmool is a distinctive form of Mesoamerican sculpture representing a reclining figure with its head facing 90 degrees from the front, leaning on its elbows and supporting a bowl or a disk upon its chest. The figure may be lying on its back or on its side and the abdomen can be sunken below the level of the chest and knees or at the same level.
Some chacmools were raised upon rectangular bases.
Chacmool (also spelled chac-mool) is the term used to refer to a particular form of pre-Columbian Mesoamerican sculpture depicting a reclining figure with its head facing 90 degrees from the front, supporting itself on its elbows and supporting a bowl or a disk upon its stomach. These figures possibly symbolised slain warriors carrying offerings to the gods; the bowl upon the chest was used to.
A paraphilia is a disorder that is characterized by recurrent intense sexual urges and sexually arousing fantasies generally involving: Pedophilia is also a psychosexual disorder in which the fantasy or actual act of engaging in sexual activity with prepubertal children is the preferred or exclusive means of achieving sexual excitement and gratification. It may be directed toward children of the same sex or children of the other sex.
Some pedophiles are attracted to both boys and girls. Some are attracted only to children, while others are attracted to adults as well as to children. Pedophilia is defined by mental health professionals as a mental disorder, but the American legal system defines acting on a pedophilic urge as a criminal act. Description The focus of pedophilia is sexual activity with a child.
What Are The Bases . . . When It Comes To Sex
Is myriad a noun?: Usage Guide Noun Recent criticism of the use of myriad as a noun, both in the plural form myriads and in the phrase a myriad of, seems to reflect a mistaken belief that the word was originally and is still properly only an adjective. As the entries here show, however, the noun is in fact the older form, dating to the 16th century.
Expert power is an individual’s power deriving from the skills or expertise of the person and the organization’s needs for those skills and expertise. Unlike the others, this type of power is usually highly specific and limited to the particular area in which the expert is trained and qualified.
This new technology meant that old make-up techniques and old products simply would not cut the mustard any more. Every change in texture would now be visible, so it was no longer enough simply to trowel on the slap. New formulations that could seamlessly cover wrinkles and imperfections were therefore developed.
Both products use a combination of ingredients with a single goal: It basically bounces light away from the skin, so the shadows and changes in skintone, which is what we see when we look at wrinkles and imperfections, are less obvious. These have a dual role in that they also help to create a smooth, silky texture that glides over the skin. Mica is another key ingredient which works because it also helps to reflect light, creating a look that is natural yet conceas imperfections and evens skin tone.
Keen to address this issue is Clinique. However, it also contains a cocktail of antioxidant active ingredients, including Vitamin C, Vitamin E and white birch extract, which have been designed to help break up and, over time, reduce the appearance of uneven skin tone.
Power (social and political)
Reproduced in the Senate Report , pg. Freedom of the press, for instance, had little ancestry at common law: In the Colonies, these and similar statutes were likewise enforced and offending religious material was burned in Massachusetts as late as The antiquity of the right is so great that it is all but impossible to document its actual beginning.
Bb definition, a size of shot, inches ( cm) in diameter, fired from an air rifle or BB gun. See more.
READ MORE Theories An influential view held by the psychoanalytic tradition is that neuroses arise from intrapsychic conflict conflict between different drives, impulses, and motives held within various components of the mind. Central to psychoanalytic theory, which was founded by Austrian neurologist Sigmund Freud , is the postulated existence of an unconscious part of the mind which, among other functions, acts as a repository for repressed thoughts , feelings, and memories that are disturbing or otherwise unacceptable to the conscious mind.
These repressed mental contents are typically sexual or aggressive urges or painful memories of an emotional loss or an unsatisfied longing dating from childhood. Anxiety arises when these unacceptable and repressed drives threaten to enter consciousness ; prompted by anxiety, the conscious part of the mind the ego tries to deflect the emergence into consciousness of the repressed mental contents through the use of defense mechanisms such as repression, denial, or reaction formation.
Neurotic symptoms often begin when a previously impermeable defense mechanism breaks down and a forbidden drive or impulse threatens to enter consciousness. Freud, SigmundSigmund Freud,