Voussoir
A voussoir /vuˈswɑːr/ or extrados is a wedge-shaped element, typically a stone, used in building an arch or vault.
Although each unit in an arch or vault is a voussoir, two units are of distinct functional importance: the keystone and the springer. The keystone is the center stone or masonry unit at the apex of an arch. It is often decorated or enlarged. An enlarged and slightly dropped keystone is often found in Mannerist arches of the 16th century, such as the portal of the "church house" at Colditz Castle. The springer is the lowermost voussoir, located where the curve of the arch springs from the vertical support or abutment of the wall or pier.
The word is a mason's term borrowed in Middle English from French verbs connoting a "turn" (OED). Each wedge-shaped voussoir turns aside the thrust of the mass above, transferring it from stone to stone to the springer's bottom face ('impost'), which is horizontal and passes the thrust on to the supports. Voussoir arches distribute weight efficiently and take maximum advantage of the compressive strength of stone, as in an arch bridge.
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by Mars Volta
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Viscera Eyes
by: Mars VoltaPor cuando te vi enfermo con mentiras
Este ladrón cuenta se dio
Trapa mal hecho de trampas
Te lo juro que yo si te mato
Y con cada dia que se pase recuerdate
Quien era el mas poderoso
Don't let me, don't let me go
There is a venom in numerical lies
Your convalescent thorns
Are but a crown of magnets
They fold the shakes inside that third glass eye
Come on and give it to me
Come on and die
In your viscera eyes
Cateracts close the blinds
Let me let comfort come drown by your side
Ay mi hija me llores
Porque yo te quito de esta cruz
A noche te vi caminando
Sin la alma de tu cuerpo
En los brasos
Sin luz
Stains fall into the brick wall severed
Four of them were watching
While the other three did hide
The culprit spat the seed
From a podium of glass
Shattering the sigil
That you thought was deitized
Don't let me, don't let me go
There is a venom in numerical lies
Your convalescent thorns
Are but a crown of maggots
They rot the shakes inside that third glass eye
Come on and give it to me
Come on and die
In your viscera eyes
Cateracts close the blinds
Let me let comfort come drown by your side
In your viscera eyes
Cateracts close the blinds
Let me let comfort come drown by your side
Wait
I've seen the arc shake
From your mnemonic tongue
But the braille
That you weave
Of itself, it shall read aloud
Yes it will
I said she's falling, she's still falling
But no one wants to come
She's crawling, she's still crawling
On your burial ground
I said she's falling, she's still falling
But no one wants to come
She's crawling, she's still crawling