Homogeneous in the context of Microwaving

A microwave oven, or simply microwave, is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. This induces polar molecules in the food to rotate and produce thermal energy (heat) in a process known as dielectric heating. Microwave ovens heat food quickly and efficiently because the heating effect is fairly uniform in the outer 25–38 mm (1–1.5 inches) of a homogeneous, high-water-content food item.

The development of the cavity magnetron in the United Kingdom made possible the production of electromagnetic waves of a small enough wavelength (microwaves) to efficiently heat up water molecules. American electrical engineer Percy Spencer is generally credited with developing and patenting the world's first commercial microwave oven, the "Radarange", which was first sold in 1947. He based it on British radar technology which had been developed before and during World War II.

Ethnic cleansing is the systematic forced removal of ethnic, racial, or religious groups from a given area, with the intent of making the society ethnically homogeneous. Along with direct removal such as deportation or population transfer, it also includes indirect methods aimed at forced migration by coercing the victim group to flee and preventing its return, such as murder, rape, and property destruction. Both the definition and charge of ethnic cleansing is often disputed, with some researchers including and others excluding coercive assimilation or mass killings as a means of depopulating an area of a particular group, or calling it a euphemism for genocide or cultural genocide.

Although scholars do not agree on which events constitute ethnic cleansing, many instances have occurred throughout history. The term was first used to describe Albanian nationalist treatment of the Kosovo Serbs in the 1980s, and entered widespread use during the Yugoslav Wars in the 1990s. Since then, the term has gained widespread acceptance due to journalism. Although research originally focused on deep-rooted animosities as an explanation for ethnic cleansing events, more recent studies depict ethnic cleansing as "a natural extension of the homogenizing tendencies of nation states" or emphasize security concerns and the effects of democratization, portraying ethnic tensions as a contributing factor. Research has also focused on the role of war as a causative or potentiating factor in ethnic cleansing. However, states in a similar strategic situation can have widely varying policies towards minority ethnic groups perceived as a security threat.

Lithographic limestone is hard limestone that is sufficiently fine-grained, homogeneous and defect-free to be used for lithography.

Geologists use the term "lithographic texture" to refer to a grain size under 1/250 mm.

In chemistry and materials science, impurities are chemical substances inside a confined amount of liquid, gas, or solid. They differ from the chemical composition of the material or compound. Firstly, a pure chemical should appear in at least one chemical phase and can also be characterized by its phase diagram. Secondly, a pure chemical should prove to be homogeneous (i.e., a uniform substance that has the same composition throughout the material). The perfect pure chemical will pass all attempts to separate and purify it further. Thirdly, and here we focus on the common chemical definition, it should not contain any trace of any other kind of chemical species. In reality, there are no absolutely 100% pure chemical compounds, as there is always some small amount of contamination.

The levels of impurities in a material are generally defined in relative terms. Standards have been established by various organizations that attempt to define the permitted levels of various impurities in a manufactured product. Strictly speaking, a material's level of purity can only be stated as being more or less pure than some other material.

A utopia (/juːˈtoʊpiə/ yoo-TOH-pee-ə) typically describes an imagined community or society that possesses highly desirable or near-perfect qualities for its members. It was coined by Sir Thomas More for his 1516 book Utopia, which describes a fictional island society in the New World.

Hypothetical utopias and actually-existing utopian intentional communities focus on, among other things, equality in categories such as economics, government and justice, with the method and structure of proposed implementation varying according to ideology. Lyman Tower Sargent argues that the nature of a utopia is inherently contradictory because societies are not homogeneous. Their members have desires that conflict and therefore cannot simultaneously be satisfied. To quote:

A breed is a specific group of breedable domestic animals having homogeneous appearance (phenotype), homogeneous behavior, and/or other characteristics that distinguish it from other organisms of the same species. In literature, there exist several slightly deviating definitions. Breeds are formed through genetic isolation and either natural adaptation to the environment or selective breeding, or a combination of the two. Despite the centrality of the idea of "breeds" to animal husbandry and agriculture, no single, scientifically accepted definition of the term exists. A breed is therefore not an objective or biologically verifiable classification but is instead a term of art amongst groups of breeders who share a consensus around what qualities make some members of a given species members of a nameable subset.

Another point of view is that a breed is consistent enough in type to be logically grouped together and when mated within the group produce the same type. When bred together, individuals of the same breed pass on these predictable traits to their offspring, and this ability – known as "breeding true" – is a requirement for a breed. Plant breeds are more commonly known as cultivars. The offspring produced as a result of breeding animals of one breed with other animals of another breed are known as crossbreeds or mixed breeds. Crosses between animal or plant variants above the level of breed/cultivar (i.e. between species, subspecies, botanical variety, even different genera) are referred to as hybrids.

The Hausa (autonyms for singular: Bahaushe (m), Bahaushiya (f); plural: Hausawa and general: Hausa; exonyms: Ausa; Ajami: مُتَنٜىٰنْ هَوْسَا / هَوْسَاوَا) are a native ethnic group in West Africa. They speak the Hausa language, which is the second most spoken language after Arabic in the Afro-Asiatic language family. The Hausa are a culturally homogeneous people based primarily in the Sahelian and the sparse savanna areas of southern Niger and northern Nigeria respectively, numbering around 86 million people, with significant populations in Benin, Cameroon, Ivory Coast, Chad, the Central African Republic, Togo, and Ghana, as well as smaller more recent populations in Sudan, Eritrea.

Predominantly Hausa-speaking communities are scattered throughout West Africa and on the traditional Hajj route north and east traversing the Sahara, with an especially large population in and around the town of Agadez. Other Hausa have also moved to large neighbouring coastal cities in the region such as Lagos, Port Harcourt, Accra, Abidjan and Cotonou as well as to parts of North Africa such as Libya over the course of the last 500 years. The Hausa are traditionally agriculturists who live in small villages as well as in precolonial towns and cities. The Hausa aristocracy had historically developed an equestrian based culture. Still a status symbol of the traditional nobility in Hausa society, the horse still features in the Eid day celebrations, known as Ranar Sallah (in English: the Day of the Prayer). Daura is the cultural center of the Hausa people. The town predates all the other major Hausa towns in tradition and culture.

148780 Altjira (provisional designation 2001 UQ₁₈) appears to be a triple or contact binary double classical Kuiper belt object. The secondary is large compared to the primary, approximately 246 kilometres (153 mi) vs. 221 kilometres (137 mi). The lightcurve is quite flat (Δmag<0.10), which is indicative of a "quasi-spherical body with a homogeneous surface".The system mass is 4 × 10 kg.

Its companion was discovered on 6 August 2006, from images taken by the Hubble Space Telescope. The secondary's orbit has the following parameters: semi-major-axis, 9904 ± 56 km; period, 139.561 ± 0.047 days; eccentricity, 0.3445 ± 0.0045; and inclination, 35.19 ± 0.19° (retrograde). There is indirect evidence that Altjira may be an unresolved hierarchical triple system.

Olbers' paradox, also known as the dark night paradox or Olbers and Cheseaux's paradox, is an argument in astrophysics and physical cosmology that says the darkness of the night sky conflicts with the assumption of an infinite and eternal static universe. In the hypothetical case that the universe is static, homogeneous at a large scale, and populated by an infinite number of stars, any line of sight from Earth must end at the surface of a star and hence the night sky should be completely illuminated and very bright. This contradicts the observed darkness and non-uniformity of the night sky.

The darkness of the night sky is one piece of evidence for a dynamic universe, such as the Big Bang model. That model explains the observed darkness by invoking expansion of the universe, which increases the wavelength of visible light originating from the Big Bang to microwave scale via a process known as redshift. The resulting microwave radiation background has wavelengths much longer (millimeters instead of nanometers), which appear dark to the naked eye. Although he was not the first to describe it, the paradox is popularly named after the German astronomer Heinrich Wilhelm Olbers (1758–1840).

A utopia (/juːˈtoʊpiə/ yoo-TOH-pee-ə) typically describes an imagined community or society that possesses highly desirable or near-perfect qualities for its members. It was coined by Sir Thomas More for his 1516 book Utopia, which describes a fictional island society in the New World.

Hypothetical utopias and actually-existing utopian intentional communities focus on, among other things, equality in the areas of economics, government and justice, with the method and structure of proposed implementation varying according to ideology. Lyman Tower Sargent argues that the nature of a utopia is inherently contradictory because societies are not homogeneous. Their members have desires that conflict and therefore cannot simultaneously be satisfied. To quote: