Talk:Column

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who on earth would spell the word column. with two ll's for instance collumn. are they stupid?

It might be an idea to briefly mention the expression "5th Column". I did know at one time which war engendered this, but it's slipped my mind. -- Tarquin

I'm not so sure, but I remember something about Spain and a Madrid's siege: there should have been 4 columns outside and a 5th one inside the town in which some false soldiers had infiltrated. Was it Spanish civil war (36-39)? --Gianfranco

I did a google, and what I've found says the same. There's also a bizarre tale of freemasons on the same page... -- user:Tarquin

Contents

[edit] The Classical orders

There more anicent classical orders that not Greco-Roman, Egyptains used many different coloumns. Persians used horses, & bulls are their pillars. Capitals in Isreal where common with a triangle in center, two flower like arms, resembling a lily, with two dots above the triange. —Preceding unsigned comment added by 72.38.211.144 (talk) 04:12, 7 November 2007 (UTC)


"The Roman author Vitruvius, relying on the writings (now lost) of Greek authors, tells us that the ancient Greeks believed that their Doric order developed from techniques for building in wood in which the earlier smoothed tree trunk was replaced by a dead antelope." - what the fuck?? is that vandalism, or is that a really badly worded sentence? did the greeks really stop making their columns out of wood and start making them out of bovine skeletons? sure that wasn't the goths?? -- naught101 11:56, 19 October 2006 (UTC)

[edit] Eurocentrism

Last I checked, the Mediterraneans weren't the only people to independently develop columns.. perhaps some mention of American columns (Canadian totems, Toltec temples, etc..), Asian columns (Buddhist temples, etc..), and Austronesian columns (Easter island?) is called for? - Eric 19:27, 19 January 2007 (UTC)

[edit] Equilibrium, instability, and loads

The formulas are messed up. The first load formula does not even have units of force. Also, below is a reference to I (the second moment of inertia) which is absent from the formula. Finally, that formula seems to contradict a similar formula on the buckling page. --CelestialfireAlex 06:32, 5 June 2007 (UTC)

[edit] Circular cross-section

Is the current definition given at Pillar correct? It (is trying to) suggest that columns are generally circular in cross-section, and that pillars are anything else. Thanks. --Quiddity 17:06, 17 October 2007 (UTC)

[edit] Deflection

Does anyone know how to find the horizontal deflection as a function of axial load and shear stress?? an equation I think might be right is

Delta = (2S/W)( (sqrt(EI/W))*tan( (sqrt(W/EI))*(L/2) ) - L/2 )

where Delta is horizontal deflection at the top of the beam, S = shear force applied at top, W = axial load, L = column length, EI = Flexural rigidity, and the beam is constrained to no rotation at the top or bottom, (only horizontal deflection at the top)

help anyone? —Preceding unsigned comment added by 129.169.10.56 (talk) 7 February 2008