When the gemstones are in a rough state, the gemologist studies the external structure ; the host rock and mineral association ; and natural and polished colour.

When polished and acid etched the classic Widmanstätten patterns of intersecting lines of lamellar kamacite, are visible.

When the trade occurred he became a more polished scorer and was projected to have been a third option for the Heat to complement Dwyane Wade and Shaquille O ' Neal, had the circumstances of the season turned out differently.

" When polished by a lapidary the thomsonites sometimes display chatoyancy.

When this happens, the instrument may need refretting ( the frets are removed and replaced ) or, in less severe cases, " fret dressing " ( the frets are leveled, polished, and possibly recrowned ).

When the details are completed, the shell is then soaked in olive oil, cleaned with soap and water and selectively polished with a hand brush.

After a quick change, Anderson reappeared as the polished gentleman and sang " When the Cuckoo Sings ", instantly winning the hearts of the audience with his perfect yodehng, causing said audience to cheer like mad for more.

When dry, the stone resembles ordinary limestone but when wet or polished using lapidary techniques, the distinctive mottled pattern of the six-sided coral fossils emerges.

When light passes through a gemstone and strikes a polished facet, the minimum angle possible for the facet to reflect the light back into the gemstone is called the critical angle.

When he was two, his family moved to Ciudad Juárez, a northern border town where he and his brothers, Tin-Tan, and El Loco Valdés, polished their acting skills.

When first carved, the surface of the moai was polished smooth by rubbing with pumice.

When the tram-lines were removed in the nearby suburb of Ambler Thorn, he realised that he had been using the polished strips of steel to navigate.

When cut across the fibers and polished on the ends, satin spar exhibits an optical illusion when placed on a printed or pictured surface ; and is often called and sold as the “ television stone ” ( as is ulexite ).

When applied to unfired clay surfaces, " terra sig " can be polished with a soft cloth or brush to achieve a shine ranging from a smooth silky lustre to a high gloss.

According to theater historian John Kenrick, " When the curtain slowly rose to reveal forty pairs of tap-dancing feet, the star-studded opening night audience at the Winter Garden cheered ... Champion ( who had no tap training ) followed this number with a series of tap-infused extravaganzas larger and more polished than anything Broadway really had in the 1930s.

When a big story broke at the last minute, a polished ready-to-air show was reorganized: the entire menu was shifted as events demanded.

When Dear You was released in September 1995, however, its polished production and clear vocals strongly divided the band's fanbase.

When cut and polished, the meteorite showed beautiful yellowish olivine ( peridot ) crystals.

When prepared for use as a pipe, the natural nodules are first scraped to remove the red earthy matrix, then dried, again scraped and polished with wax.

When cut and polished the result is a beautiful ornate stone, much desired for church decoration, particularly during the Middle Ages

When she tried to show them that she was still the same polished girl they knew from London by throwing a picnic, she asked that Tarzan wear his father's suit.

When farmers sharpened their blades for combat, the blade was polished clean and white.

When the British Commonwealth Occupation Forces arrived in Japan — all with boots polished to a degree not known in the U. S. forces — the G. I. s were more conscious than ever of their feet.

When an inlay is used, the tooth-to-restoration margin may be finished and polished to such a super-fine line of contact that recurrent decay will be all but impossible.

When that mixture has dried, the metal stylus is used on the plate and thereby removes some of the grit particles, so that minuscule areas of copper are exposed to the acid and etched ; they will eventually hold the ink for the printing process.

When viewed from the air ( or in satellite imagery ), the present station building's British Rail logo that is etched on the top of the roof is visible.

When I went for my interview with the director I saw why.

When his eyes began to focus, he saw Jess charging at him with a pitchfork.

When our eyes met the air was filled with an unuttered message of `` Me, too ''.

When he started school at the age of five-and-a-half, he could not understand why the alphabet begins with the letter A, instead of C, as in the scale.

When the Revolution broke out, he, along with Jefferson and Jay, abandoned his career at the bar, with considerable financial sacrifice.

When confronted with a drunk or an insane person I have no notion of what any one of them might do to me or to himself or to others.

When I try to work out my reasons for feeling that this passage is of critical significance, I come up with the following ideas, which I shall express very briefly here and revert to in a later essay.

When words can be used in a more fresh and primitive way so that they strike with the force of sights and sounds, when tones of sound and colors of paint and the carven shape all strike the sensibilities with an undeniable force of data in and of themselves, compelling the observer into an attitude of attention, all this imitates the way experience itself in its deepest character strikes upon the door of consciousness and clamors for entrance.

When combined with the metaphysical notion that pure forms of this universe are best appreciated when least embodied in a material substratum, it becomes clear that while earth will be dross on a scale of material-formal ratios, celestial bodies will be of a subtle, quickened, ethereal existence, in whose embodiment pure form will be the dominant component and matter will be absent or remain subsidiary.

When her right hand was incapacitated by the rheumatism, Sadie learned to write with her left hand.

When someone in the audience rose and asked how does it feel to be a celebrity, Carl said, `` A celebrity is a fellow who eats celery with celerity ''.

When he discovered they had received from the Company's Court of Directors no permission to live in India, coupled with the fact that they were Americans who had been sent to Asia to convert `` the heathen '', he became more belligerent than ever.

When Harold Arlen returned to California in the winter of 1944, it was to take up again a collaboration with Johnny Mercer, begun some years before.

When the troupe traveled to New York to participate in a one-act-play competition -- and won -- Mercer, instead of returning with the rest of the company in triumph, remained in New York.

When Prudence and Blackberry were too young to be trusted in the dining room, they were tied to the radiator with their leashes, and they would cry.

When we consider the disorganized state of the world community, and the legacy of predispositions adversely directed against all who are identified as Jews, it is obvious that the struggle for the minds and muscles of men needs to be prosecuted with increasing vigor and skill.

When these fields are surveyed together, important patterns of relationship emerge indicating a vast community of reciprocal influence, a continuity of thought and expression including many traditions, primarily literary, religious, and philosophical, but frequently including contact with the fine arts and even, to some extent, with science.

When Nan Patterson, a stunning and money-minded chorus girl who had appeared in a Floradora road show, rode down Broadway in a hansom cab with her married lover, Frank Young, she stopped the cab to disclose that Young had been shot dead, tearfully insisting that he had shot himself although experts said he could not have done so.

When the victory cheer went up this officer found himself still mounted, with his horse pressed broadside against Cleburne's log parapet in a tangled group of infantrymen.

When the negotiations began, his quarrel with the king of France was temporarily in abeyance, and he had no intention of reviving it so long as there was hope that French money would come to pay the troops who, under Charles of Valois, the papal vicar of Tuscany, were so valuable in the crusade against the Colonna cardinals and their Sicilian allies.

When Sir Edward Greville enclosed the town commons on the Bancroft, Quiney and others leveled his hedges on January 21, 1600/1, and were charged with riot by Sir Edward.

When Blackman emerged from the bedroom, everyone was gone except the tolerant Lord Thomson, who stayed and chatted with him for half an hour, and then Blackman lay awake most of that night, despairing of what he must expect on the Continent.