Arra Mountains

The Arra Mountains or Arra Hills (Irish: Sliabh an Ara) are situated in County Tipperary in Ireland, between the towns of Nenagh and Balina, south east of Lough Derg (Shannon) and north of the M7 Motorway.

The highest summit is Tountinna (Irish: Tonn Toinne) at 457m high.

On Loughtea Hill, south-west of Portroe, a 20 metre high stainless steel cross was erected in 2002 to mark the millennium and to replace an original cross placed there following the Eucharistic Congress of Dublin (1932).

Fintan's Grave a cave on Tountinna where in mythology Fintan mac Bóchra is said to have waited out the flood here.

Mountains or Hills

Tountinna, the highest peak, does not qualify as a mountain using the usual convention whereby a mountain is defined (in Ireland and the UK) as any summit at least 2,000 feet (or 610 metres) high, whilst the official UK government's definition of a mountain is a summit of 600 metres or higher. In addition, some definitions also include a topographical prominence requirement, typically 100 feet (30 m) or 500 feet (152 m). In practice, mountains in Scotland are frequently referred to as "hills" no matter what their height, as reflected in names such as the Cuillin Hills and the Torridon Hills. In Wales, the distinction is more a term of land use and appearance and has nothing to do with height. For a while, the US defined a mountain as being 1,000 feet (304.8 m) or more tall. Any similar landform lower than this height was considered a hill. However, today, the United States Geological Survey (USGS) concludes that these terms do not have technical definitions in the US. However both the Placenames Database of Ireland and the Ordnance Survey of Ireland refer to the Arra range as mountains, not hills.

Hill

A hill is a landform that extends above the surrounding terrain. It often has a distinct summit, although in areas with scarp/dip topography a hill may refer to a particular section of flat terrain without a massive summit (e.g. Box Hill, Surrey).

Terminology

The distinction between a hill and a mountain is unclear and largely subjective, but a hill is universally considered to be less tall and less steep than a mountain. In the United Kingdom, geographers historically regarded mountains as hills greater than 1,000 feet (300 m) above sea level, which formed the basis of the plot of the 1995 film The Englishman Who Went Up a Hill But Came Down a Mountain. In contrast, hillwalkers have tended to regard mountains as peaks 2,000 feet (610 m) above sea level: the Oxford English Dictionary also suggests a limit of 2,000 feet (610 m) and Whittow states "Some authorities regard eminences above 600 m (2,000 ft) as mountains, those below being referred to as hills." The Great Soviet Encyclopedia defines hill as an upland with a relative height up to 200 m (660 ft).

Hills (disambiguation)

Hills generally refers to a series of raised landforms (see hill).

Hills may also refer to:

Places

Surname

People with the surname Hills include:

Hills, Iowa

Hills is a city in Johnson County, Iowa, United States. It is part of the Iowa City, Iowa Metropolitan Statistical Area. The population was 703 at the 2010 census. It is part of the Iowa City Community School District.

Geography

Hills is located at 41°33′25″N 91°32′6″W / 41.55694°N 91.53500°W / 41.55694; -91.53500 (41.557041, -91.534992).

According to the United States Census Bureau, the city has a total area of 0.63 square miles (1.63 km²), all of it land.

Demographics

2010 census

As of the census of 2010, there were 703 people, 299 households, and 190 families residing in the city. The population density was 1,115.9 inhabitants per square mile (430.9/km²). There were 349 housing units at an average density of 554.0 per square mile (213.9/km²). The racial makeup of the city was 93.3% White, 0.3% African American, 0.7% Native American, 1.3% Asian, 1.6% from other races, and 2.8% from two or more races. Hispanic or Latino of any race were 4.0% of the population.

There were 299 households of which 26.8% had children under the age of 18 living with them, 52.2% were married couples living together, 7.4% had a female householder with no husband present, 4.0% had a male householder with no wife present, and 36.5% were non-families. 30.8% of all households were made up of individuals and 15.7% had someone living alone who was 65 years of age or older. The average household size was 2.22 and the average family size was 2.73.

Arra

Arra may refer to:

ARRA may refer to:

See also

Arra, Pakistan

Arra (Urdu: آڑا‎) is a village and union council of Chakwal District in the Punjab Province of Pakistan and is part of Choa Saidan Shah Tehsil.

References

ARRA (computer)

The ARRA (for "Automatische Relais Rekenmachine Amsterdam", Automatic Relay Calculator Amsterdam) was the first Dutch computer, and was built from relays for the Dutch Mathematical Centre (Dutch: Mathematisch Centrum), which later became the Centrum Wiskunde & Informatica (CWI).

It was designed and built by Carel Scholten and Bram Loopstra, and was finished in 1952. Because of reliability problems it was soon taken out of commission, and "updated" to the ARRA II, which actually was a completely new design.

See also

Other computers designed and built at the Mathematical Centre:

Other very early Dutch computers:

External links

Remembering ARRA: A pioneer in Dutch computing on YouTube