(n.) A grayish blue building stone, as that commonly used in the eastern United States.
Example Sentences:
(1) The first site we explored was a big burial cairn in the shadow of Carn Menyn, where the Stonehenge bluestones come from."
(2) The first bluestones, the smaller standing stones, were brought from Wales and placed as grave markers around 3,000BC, and it remained a giant circular graveyard for at least 200 years, with sporadic burials after that, he claims.
(3) The celebrated geologist Herbert Henry Thomas linked the Stonehenge bluestones with Preseli in 1923 and pinpointed the tor on Carn Meini as the likely source.
(4) It has long been known that the bluestones that form Stonehenge’s inner horseshoe came from the Preseli hills in Pembrokeshire, around 140 miles from Salisbury Plain.
(5) Bevins, who has been studying the geology of Pembrokeshire for over 30 years, said: "I hope that our recent scientific findings will influence the continually debated question of how the bluestones were transported to Salisbury Plain."
(6) Although the double-decker bus height sarsens are undoubtedly the most impressive, Darvill and Wainwright believe they were essentially an architectural framework for the bluestones, just as towering medieval cathedrals grew over the shrines of saints.
(7) the Bluestone 9 steps test (tympanometry) and the measurement of the opening pressure with a pressure transducer during Valsalva and swallowing.
(8) Rob Ixer, of University College London, who also took part in the new research, said: "Almost everything we believed 10 years ago about the bluestones has been shown to be partially or completely incorrect.
(9) At 4.43am on 21 June, when the sun rises above the rolling plains of Wiltshire and, cloud willing, its rays come fingering their way through the grass to touch the mighty sarsens and bluestones of the Henge, it will be a moment of joy for all concerned: the battles of the past between druids, crusties, conservators, archaeologists, seers and sightseers are over – thousands of them will be there, ready to celebrate the dawn of a new age for the Neolithic.
(10) Archaeologists have argued for centuries about what Stonehenge really meant to the people who gave hundreds of thousands of hours to constructing circles of bluestones shipped from Wales, and sarsens the size of double-decker buses dragged across Salisbury plain.
(11) It would be wrong to strike the bluestones now, and in any case they have settled into the earth so they can no longer resonate, but it adds to the mystery and delight of the stones to know that the shrine is not just an observatory but a place where the music of the spheres plays on a cosmic glockenspiel.
(12) Although they concede Stonehenge was probably "multifunctional", possibly also serving as a giant calender marking the solstices, as well as a site of ancestor worship, they are convinced its true importance came from the modest bluestones, the size of a man or smaller, dwarfed by the awesome sarsens.
(13) It was the magical bluestone - spotted dolomite, which when newly quarried is dark blue speckled with brilliant white stars of quartz - that made Stonehenge the Lourdes of prehistoric Europe, they believe.
(14) BBC3 has an extraordinary track record – it's been home to Gavin & Stacey, Little Britain, Bad Education and, right now, Bluestone 42.
(15) More research will be done to establish if the important person buried there played a role in the moving of bluestone 190 miles from west Wales to the Wiltshire monument.
(16) Some experts believe the bluestones – rather than the much larger sarsen stones that give Stonehenge its familiar shape – were the real draw because they were believed to have healing powers.
(17) This article appeared in Guardian Weekly , which incorporates material from Le Monde • This article was amended on 26 November 2013 to correct the name and details of the company Bluestone Global Tech
(18) The find has been made by professors Tim Darvill and Geoffrey Wainwright, who have spent the last 10 years trying to establish how and why the bluestones – or spotted dolerite – were transported from the Preseli hills to Stonehenge.
(19) Two of the original bluestones were broken, many chipped into fragments, and some survive only as stumps underground, after being broken up to serve as healing talismans.
(20) One of the many huge puzzles remains how the bluestone from Wales travelled 190 miles to the heart of south-west England.
Feldspathic
Definition:
(a.) Alt. of Feldspathose
Example Sentences:
(1) Under four loading conditions, the tensile stress distributions on the ceramics crown were analyzed to evaluate the relations between three kinds of ceramics crown, which were an aluminous porcelain jacket crown, a feldspathic porcelain jacket crown and an Olympus castable ceramics (O.C.C.)
(2) Failure was assumed at a strain level of 0.1%, which corresponds to the tensile failure strain of feldspathic porcelain.
(3) The gel was also applied to glass ceramic, amalgam, hybrid composite, feldspathic porcelain, glass ionomer, gold alloy, silver palladium alloy, and non-precious alloy.
(4) However, the depth of compressive stress that is produced by tempering of feldspathic porcelain has not been determined.
(5) The sintered aluminous porcelains were made from the mixed compacts consisting of 80 wt% germanate-glass and 20 wt% alumina at the densification temperature of 580-820 degrees C. Sintered aluminous porcelains prepared with high refractive germante-glass had a high transparency compared with the other aluminous porcelains, with almost the same transparency as a commercial feldspathic porcelain (body).
(6) This study investigated the effectiveness of tempering and ion-exchange treatments on crack growth and bi-axial flexural strength of seven feldspathic porcelains.
(7) The feldspathic porcelain was lowest in n-value, while the fine-grain ceramic had the highest n-value.
(8) The results of this study suggest that checking in conventional feldspathic porcelains can be promoted by slow cooling rates and an excessive number of firing cycles.
(9) The materials consisted of three low-fusing and one high-fusing feldspathic porcelains and six reinforced dental restorative ceramics which are currently in clinical use.
(10) The crowns, 10 for each group, were made of a feldspathic porcelain (Ceramco), a glass-ceramic material (Dicor), and an alumina-reinforced glass (In-Ceram).
(11) The kinetics of ion exchange strengthening of three feldspathic porcelains were investigated.
(12) Both crown types were veneered with feldspathic porcelain.
(13) Lifetime prediction curves in 37 degrees C water, constructed from the n-values and inert strengths, showed that fatigue failure within five years is a good possibility for feldspathic porcelain specimens at stress levels which can reasonably be anticipated to occur in the oral environment.
(14) The constant stressing rate experiments were carried out at 37 degrees C for all three ceramics in distilled water, and, for the feldspathic porcelain, in artificial saliva as well.
(15) The factors tested were (1) porcelain type (feldspathic [porcelain CE] or high alumina [porcelain VI]), (2) surface treatment (glazed or roughened), (3) priming agent (silane or alcohol), (4) bonding resin (macrofilled or microfilled), and (5) debonding time (30 minutes or 24 hours).
(16) Most commercial dental porcelains designed for ceramo-metallic restorations are partially crystallized feldspathic glasses (glass-ceramics) that consist of low (tetragonal) leucite (K2O.Al2O3.4SiO2) crystals embedded in a glassy matrix.
(17) The purpose of this study was to test the hypothesis that high-leucite content feldspathic porcelain can be strengthened best by thermal tempering followed by ion exchange, compared with either thermal tempering or ion exchange alone.
(18) The dynamic fatigue (constant stressing rate) method was used to obtain subcritical crack growth parameters for three dental ceramics: a feldspathic porcelain, an aluminous porcelain, and a fine-grain, polycrystalline core material.
(19) Ion exchange is a simple, relatively low-temperature process that can have a substantial effect on the flexural strength of feldspathic dental porcelains.
(20) A variety of feldspathic porcelains with low and medium alumina content were tested.