#Keystone
#Keystone lake dam levels for those who want to watch. Pretty good so far.
Keystone pipeline could resume pumping oil by Tuesday #Economy #Environment #US News #Keystone pipeline #Keystone Pipeline Leak #South Bow Corp
https://globalnews.ca/news/11130229/keystone-pipeline-could-resume-pumping-oil-by-tuesday//612
"Federal regulators have ordered the operator of the #Keystone Pipeline to take several corrective actions after a rupture earlier this week caused more than 556,000 litres of oil to spill onto farmland in North Dakota.
The order also requires an evaluation of the pipeline's special permit, which allows the line to operate at higher-than-normal pressures, to determine if new or modified conditions are necessary."
We were told these pipelines are totally safe..
#keystone #cleanenergy #northdakota
Who could imagine that this might happen?
(Answer: Everyone except pipeline company and North Dakota officials).
https://southdakotasearchlight.com/briefs/keystone-pipeline-shut-down-after-leak-in-north-dakota/
سأبقي على خيارات أعمالي بين:
- #ووردبرس (#wordpress): وهي الأقل حظاً
- #اومبراكو (#umbraco): الأكثر
- #كيستون (#keystone): خيار نظام إدارة محتوى بلغة #جافاسكريبت
روابط:
https://keystonejs.com/
https://umbraco.com/
https://wordpress.org/
“Evolution demands exceptional individuals, fitter to their environment than their fellows. Species prosper by imitating efficient eccentrics. … Beware of squaring the Keystone, or heaving it over among the rubbish!”
#aleisterCrowley #beware #book #children #demands #education #efficientEccentrics #Environment #evolution #exceptionalIndividuals #fellows #fitter #heavingItOver #imitating #keystone #Oriflamme #prosper #quote #rubbish #species #squaring #TheRevivalOfMagick
Keystone (limestone) (Paleontology 🦕)
Keystone is a type of limestone, or coral rag, quarried in the Florida Keys, in particular from Windley Key fossil quarry, which is now a State Park of Florida. The limestone is Pleistocene in age, and the rock primarily consists of scleractinian coral, such as Elkhorn coral and Brain coral. The Hurricane Monument, commemorating victims of the Labor Day Hurricane of 1...
#Arch without Pedestal https://pixelfed.social/p/Splines/803615973439041638
#Arch with #Pedestal and Keystone https://pixelfed.social/p/Splines/804537414363507454
#Keystone and #Dentil Details https://pixelfed.social/p/Splines/804548474524642209
#Modillion Details https://pixelfed.social/p/Splines/805587292338863257
#ModernEntablature with Detail https://pixelfed.social/p/Splines/805607059171193759
#Milestone8 - #SimpleIntercolumniation https://pixelfed.social/p/Splines/803106316515798367
#Milestone7 - Complete #IonicOrder https://pixelfed.social/p/Splines/800050647761776920
#Milestone6 — #Braids #3StrandBraids https://pixelfed.social/p/Splines/799602946527813102
#Milestone5 — #EggsAndDarts https://pixelfed.social/p/Splines/797069447808333887
#Milestone4 — #IonicScroll https://pixelfed.social/p/Splines/795361973789834465
#Milestone3 — #IonicColumn https://pixelfed.social/p/Splines/792803978865652429
#Milestone2 — Classic #IonicEntablature https://pixelfed.social/p/Splines/791021871062069787
#Milestone1 — #IonicPedestal https://pixelfed.social/p/Splines/790752092700055739
This image shows modillions across the top of the entablature, including modillions visible on the side wall. The dentils are below the modillions and are a bit shorter than in the classic variant.
As with dentils, a #modillion must be centered on a column axis. In the front, there are two modillions directly above the two columns and eight other modillions equally spaced between them. The number is always 10. So the spacing is different for an #arch with no #pedestals.
This image also shows a skinnier #keystone. Its thickness is half that of the one shown in https://pixelfed.social/p/Splines/804548474524642209 but all other measurements remain the same. There is never a modillion directly above the keystone.
The #cymaReversa and #fillet above the keystone have #profileCurves identical to those in the #capital but the top is a square that is only µ x µ units. The top slab is centered front to back on the face of the arch.
In this image, the modern entablature is shown with the classic capital, but it goes really well with the #modernIonicCapital. As I mentioned in https://pixelfed.social/p/Splines/791065657488081419, the classic variant of the column capital has parallel flat #volute slabs only visible from the front and back, but not from the sides. Because of its lack of radial symmetry, the capital does not look as satisfying when viewed from the side, especially in a #colonnade, as seen in https://pixelfed.social/p/Splines/803089629244302486.
The modern variant has curved volute faces on all four sides with pointed ends at all corners and optimized for use in a corner column, but not limited to that. The modern #IonicCapital is the last remaining piece in our systematic look at the complete #IonicOrder.
This concludes our look at the entablature, both classic and modern, and both for #simpleIntercolumniation, or #Architravato, and #arcadeIntercolumniation.
In https://pixelfed.social/p/Splines/790782316675150160 , I mentioned that there are two variations of the #IonicEntablature — a classic version that we saw in https://pixelfed.social/p/Splines/804548474524642209, and a modern version that has a new feature called #modillions, which are projecting brackets under the #corona of the #cornice. Note that, "modern" is a relative term. For designs that are more than 2000 years old, even an alteration hundreds of years ago would qualify as modern.
The modillion design continues a similar pattern but not identical to that of a #keystone. The measurements can be found in https://babel.hathitrust.org/cgi/pt?id=mdp.39015031201190&view=1up&seq=45 from which you can surmise that the length is 130 units (based on µ = 144) and the height is 36 units excluding the flamboyant #cymaReversa. The depth is not given, but can be derived from the sketch in https://babel.hathitrust.org/cgi/pt?id=mdp.39015031201190&view=1up&seq=141.
The measurements for the cymaReversa are listed between the corona and medallions, but its #profileCurve is attached to the modillion, not to the corona. Like #dentils, we attach modillions separately to the entablature. The dentils are still there with the same square footprint and same interdental spacing, but they are shorter to make room for the modillions above.
The original #volute that forms the basis of the modillion design is µ = 144 wide (including #arcZero) and 128 tall. Since the modillion height divides evenly into µ, I used that orientation for constructing the modillion, creating a box 144 units wide and 520 units tall. After construction, I scaled it to 1/4 to get 36 x 130 units, and then rotated it 90°.
The length of 520 was divided into 128*3.5 = 448 for the curved portion (which aligns with the wall) and 72 for the straight portion, which faces the front. Try to recreate it on your own first, and if you need help, just ask me.
The #dentils arrangement we saw in https://pixelfed.social/p/Splines/791013152244518907 goes well with the classic entablature #profile we saw in https://pixelfed.social/p/Splines/790888454384861893, and they both go well with #simpleIntercolumniation, also known as #architravato.
However, with arches, the entablature profile has to be adjusted a bit so that the dentils arrangement is as shown here. The shape, size, and gap between individual dentils remains the same, but a crucial difference is that the dentils at the #outer corners touch each other.
As I mentioned in https://pixelfed.social/p/Splines/803615973439041638, in #arcadeIntercolumniation, the entablature is repeated on the wall behind the half-column. It doesn't end at the columns and has two "outside" corners and one "inside" corner. While the dentils at the outer corners touch each other, there is a single dentil in the inside corner that is shared by both walls.
A bedrock principle of dentils (like that with #flutes and with eggs in the #EggsAndDarts motif) is that when viewed directly from the front or the sides, a dentil must be centered on the column axis. It is this principle that forces us to adjust the profile of the entablature in arcade intercolumniation giving us the arrangement shown here.
The image also shows the detail of the decoration in front of the #keystone. The most easily recognizable component of that is the large #volute, which is the exact same size as the ones on the #capital. The smaller volute is exactly half the size of the larger one. It is mirrored, rotated and put within a bounding rectangle whose height is exactly 2µ (288 units). The channels of both volutes are bridged with #sinusoids derived from half turn of #helix curves that have been flattened.
This motif in the keystone, where volutes of different sizes are combined with sinusoids is very common. It will be seen in the #modillions of the #modernEntablature.
Arches are made up of wedge-shaped blocks known as #voussoir. The middle one at the top of the arch has a special name — #keystone — and it is the stone that supports the most vulnerable part of the beam above and distributes its load to the adjacent blocks, which, in turn, do the same to the next lower block until the load is transferred to the #impost above a #pier.
When the arch does not include a pedestal, the arch opening is closer to the entablature, and there is no special decoration on the keystone. When there are pedestals, they add 6µ (864 units) to the total height, but the height of the opening goes up only by 5µ. So there is greater separation between the entablature and the top of the arch. In that case, there is a decoration on top of the arch to close the gap.
With pedestals, everything added for the arch has different measurement. Because of the increased height, the whole wall behind the columns is thicker — 2µ instead of 1.5µ when there is no pedestal. The pier is also wider, but its base molding is shorter. The impost profile is same, but it is wider because the pier is wider. The #archivolt is also wider, almost reaching the column shaft.
#Scarlata's book https://babel.hathitrust.org/cgi/pt?id=mdp.39015031201190&view=1up&seq=47 has all the measurements. So, I won't repeat them here.
In this post as well as in the previous one, I showed only a single arch on a flat wall with two columns half buried in the wall. When there are multiple arches running along a curve, the wall, entablature, archivolt, impost, pier, and its base are flexible and bend along the curve, but the column and pedestal are rigid. Most #CAD tools offer the option of flowing rigid bodies along a curve or curved surface — Just flow the columns and pedestals separately.
SciTech Chronicles. . . . . . . . .Mar 6th, 2025
#Poisson #polystyrene #polybutylene #shear-rolling #sea-level #EastGRIP #1,500-meter-long #fiber-optic #microcracks #cascade #Keystone-molecules #alderenes #tetrodotoxin #saxitoxin #dimethylsulfoniopropionate #SMBC #advertisements #Hiveworks #profitable #LMC68 #ionized #recurrent #near-infrared
The #Keystone pipeline is not as dead as it ought to be. Trump wants to force it through.
https://www.telegraph.co.uk/us/politics/2025/02/27/white-house-canadian-border-trump-trudeau/
Please also vigorously oppose Trump's sale of our public lands. Let states take over their protection, because those our our lands.
Selling land for crypto is ridiculously stupid. It's a threat to the world economy and enriches only the kleptocrats.
#Oregon #Canada #USPol #PNW #SovereignWealthFund #ClimateCrisis
Trump wants Keystone XL Pipeline revived — but is there industry appetite for it? #Environment #Money #Politics #US News #Alberta Oil #Keystone XL #Pipelines
https://globalnews.ca/news/11034052/trump-says-he-wants-keystone-xl-pipeline-to-be-built//612
Trump says he wants Keystone XL Pipeline to be built #Environment #Money #Politics #US News #Alberta Oil #Keystone XL #Pipelines
https://globalnews.ca/news/11034052/trump-says-he-wants-keystone-xl-pipeline-to-be-built//612
Trump says he wants Keystone XL Pipeline to be built #Environment #Money #Politics #US News #Keystone XL #Pipelines
https://globalnews.ca/news/11034052/trump-says-he-wants-keystone-xl-pipeline-to-be-built//612