70 (number) and Rio Tinto Aluminium: Difference between pages

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{{Infobox Company

'''70''' ('''seventy''') is the [[natural number]] following [[69 (number)|69]] and preceding [[71 (number)|71]].

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'''Rio Tinto Aluminium''' (Formally known as Comalco) is the world's eighth largest [[aluminium]] company. It mines and manufactures [[bauxite]], [[alumina]] and primary aluminium.

Rio Tinto Aluminium is a wholly owned subsidiary of [[Rio Tinto Group]] and provides about 20% of [[Australia|Australia's]] total production of bauxite, 8% of its alumina and 24% of its primary aluminium.

{| width="250" border="1" style="float: right; background: #feffff; border-collapse: collapse; margin: 0.5em"

| colspan=2 | {{Numbers_70s}}

|-

| [[Cardinal number|Cardinal]]

| 70 <br> seventy

|-

| [[Ordinal number|Ordinal]]

| 70th <br> seventieth

|-

| [[Factorization]]

| <math>2 \cdot 5 \cdot 7</math>

|-

| [[Divisor]]s

| 2, 5, 7, 10, 14, 35

|-

| [[Roman numeral]]

| LXX

|-

| Roman numeral (Unicode)

| LXX, lxx

|-

| [[Binary numeral system|Binary]]

| 1000110

|-

| [[Octal]]

| 106

|-

| [[Duodecimal]]

| 5A

|-

| [[Hexadecimal]]

| 46

|-

| [[Hebrew (language)|Hebrew]]

| <font style="font-size:150%;">ע</font> (Ayin)

|}

In 2002, Rio Tinto Aluminium earned US$256 million for its shareholder Rio Tinto.

==In mathematics==

70 is a [[Pell number]] and a [[Harshad number]]. Its [[factorization]] makes it a [[sphenic number]]. It is the seventh [[pentagonal number]] and the fourth [[13 (number)|13]][[-gonal number]], as well as the fifth [[pentatope number]]. It is the smallest [[weird number]].

RTA owns the [[Weipa, Queensland|Weipa]] Bauxite mine, Yarwun Alumina Refinery, and Bell Bay Aluminium Smelter.

==In science==

*70 is the [[atomic number]] of [[ytterbium]], a lanthanide

It also has interests (manages or joint-venture) in other aluminium related businesses:

===Astronomy===

*[[Messier object]] [[M70]], a [[visual magnitude|magnitude]] 9.0 [[globular cluster]] in the [[constellation]] [[Sagittarius (constellation)|Sagittarius]]

*The [[New General Catalogue]] [http://www.ngcic.org/ object] [[NGC 70]], a magnitude 13.4 [[spiral galaxy]] in the constellation [[Andromeda (constellation)|Andromeda]]

*The [[Saros]] number of the [[solar eclipse]] series which began on [[-821]] [[September 5]] and ended on [[676]] [[February 19]]. The duration of Saros series 70 was 1496.5 years, and it contained 84 solar eclipses. Further, the Saros number of the [[lunar eclipse]] series which began on [[-519]] [[June 13]] and ended on [[761]] [[July 21]]. The duration of Saros series 70 was 1280.1 years, and it contained 72 lunar eclipses.

*Boyne Smelters (aluminium smelter)

==In religion==

*New Zealand Aluminium Smelters (aluminium smelter)

*Seventy souls went down to Egypt to begin the Egyptian exile (Gen. 46:27)

*[[Queensland Alumina Limited]] (alumina refinery)

*According to [[Judaism|Jewish tradition]], there are a core of 70 nations and 70 world languages

*[[Gladstone Power Station, Queensland|Gladstone Power Station]] (power station)

*Seventy elders were assembled by [[Moses]] on [[God]]'s command in the desert (Nu. 11:16-30)

*[[Anglesey Aluminium]] (aluminium smelter)

*[[Ptolemy II Philadelphus]] ordered 72 Jewish elders to translate the [[Torah]] into [[Greek language|Greek]]; the result was the [[Septuagint]] (from the [[Latin language|Latin]] for "seventy")

*Eurallumina SpA (alumina refinery)(Now sold)

*The [[Quorums of the Seventy|Quorum of the Seventy]], [[General Authority|General Authorities]] of [[Church of Jesus Christ of Latter-day Saints|The Church of Jesus Christ of Latter-day Saints]]

*In the [[New Testament]], the [[Gospel of Matthew]] 18:21, [[Jesus]] says to Peter to forgive seventy times seven people. <ref>"21 Then Peter came to Jesus and asked, 'Lord, how many times shall I forgive my brother when he sins against me? Up to seven times?' 22 Jesus answered, 'I tell you, not seven times, but seventy-seven times' ...". [http://www.biblegateway.com/passage/?search=Matthew+18:21-35]</ref>

==InSee other fieldsAlso==

* [[List of Alumina Refineries]]

'''70''' is:

*the designation of [[United States|USA]] [[Interstate 70]], a freeway that goes from [[Utah]] to [[Maryland]]

[[Image:Tv sesame street joe 70.jpg|right|250px|thumb|Joe Hundred Guy counts to 70 in 10s on an episode of ''[[Sesame Street]]''. He gets stuck at 70, and worries what the women will think of him, once they find out he can't count to 100. See [[List of Muppets based on celebrities]].]]

*In miles per hour, a common [[speed limit]] for freeways in many [[United States|American]] states, primarily in the central United States (in the Eastern U.S. the speed limit is generally 65, in the Western U.S. it is 75).

*In years of marriage, the [[platinum]] [[wedding anniversary]]

*The [[registry]] of the U.S. Navy's nuclear aircraft carrier [[USS Carl Vinson (CVN-70)]], named after U.S. Representative [[Carl Vinson]].

*The number of the [[French department]] [[Haute-Saône]].

*Historical years: AD '''[[70]]''', [[70 BC]], or [[1970]].

==NotesExternal links==

* [http://www.comalco.com/ Comalco web site]

<references/>

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