When they struck atoms in the glass wall, they excited their orbital electrons to higher energy levels, causing them to fluoresce.

When glass was rubbed with silk, du Fay said that the glass was charged with vitreous electricity, and, when amber was rubbed with fur, the amber was said to be charged with resinous electricity.

When the police use search warrants in connection with a vandalism investigation they are often seeking judicial approval to look for items such as cans of spray paint and nozzles from other kinds of aerosol sprays, etching tools or other sharp or pointed objects used to etch or scratch glass and other hard surfaces, and permanent marking pens, such as markers or paint sticks ; evidence of membership or affiliation with any gang or tagging crew, paraphernalia to include any reference to “( tagger ’ s name ),” and any drawings, writings, objects or graffiti depicting taggers ’ names, initials, logos, monikers, slogans, or mention of tagging crew membership ; any newspaper clippings relating details of or referring to any graffiti crime.

When installed in a window frame, the glass would be placed with the thicker side down both for the sake of stability and to prevent water accumulating in the lead cames at the bottom of the window.

When used in art glass or studio glass glass is colored using closely guarded recipes that involve specific combinations of metal oxides, melting temperatures and ' cook ' times.

When thrown against a hard surface, the glass would shatter and the contents would instantly ignite, liberating choking fumes of phosphorus pentoxide and sulphur dioxide as well as producing a great deal of heat.

When his lawyer pointed out an error in the wording of the act which seemed to limit its application to cases of the destruction of objects worth no more than five pounds, he was convicted instead of the destruction of the glass case in which the vase had sat.

When the bird returned, it used the shamir to break the glass, whereupon the men scared the bird, causing it to drop the worm, which the men could then bring to Solomon.

When added to glass, it helps increase refractive index and decrease dispersion.

In the 1891 book, The Flowing Bowl: When and what to Drink, author William Schmidt listed the Tom Collins as including :< u > Tom Collins Gin ( 1891 )</ u > The juice of half a lemon in a large glass, a bar-spoonful of sugar, a drink of Tom gin ; mix this well ; 2 lumps of ice, a bottle of plain soda. Mix well and serve.

When he leaves his calling card on the windshield of David Dunn's car, he is reflected in a glass frame in his art gallery.

When cooled below the glass transition temperature, the quasi-fluid chain segments " freeze " into fixed geometries and the rubber abruptly loses its elastic properties, although the process is reversible.

When served neat ( without any additional ingredients ), tequila is most often served in a narrow shot glass called a caballito (" Little Horse " in Spanish ), but can often be found in anything from a snifter to a tumbler.

When the joint sizes are different, ground glass adapters may be available ( or made ) to place in between to connect them.

When mixed with concentrated sulfuric, they begin releasing oxygen, which can oxidise the carbonaceous dehydration products formed from organic residues by the sulfuric to carbon dioxide ; ' burning ' them off the glass.

When burning candles in glass holders or jars, users should avoid lighting candles with chipped or cracked containers, and stop use once 1 / 2 inch or less of wax remains.

When they gathered around a blanket on which pinole ( a ground corn flour ) had been placed for them, Johnson and his men opened fire on the Chihenne with rifles and a concealed cannon loaded with scrap iron, glass, and a length of chain ).

When drunk at room temperature, it is often slightly warmed by holding the glass cupped in the palm or by gently heating it.

When it reaches temperatures of 850 – 900 ° C, perlite softens ( because it is a glass ).

When focus and composition were satisfactory, the ground glass screen was removed and a sensitised plate put in its place protected by a dark slide.

When the Smithsonian's gallery was renovated in 1997, the necklace was moved onto a rotating pedestal inside a cylinder made of thick bulletproof glass in its own display room, adjacent to the main exhibit of the National Gem Collection in the Janet Annenberg Hooker Hall of Geology, Gems, and Minerals.

When the house became a museum, the gallery the Frank sisters created was preserved under glass.

When the optical arrangement is such that the emission is stimulated by 694-nanometer photons reflecting back and forth between two mirrors, the emission grows strongly in intensity.

When an object is placed on the bottom mirror, the mirrors create a real image, which is a virtually identical copy of the original that appears in the opening.

When covered with water, the Salar becomes one of the largest mirrors on Earth.

When law enforcement agents clear a building, they usually work slowly and deliberately, using ballistic shields and mirrors for searching.

When a sufficient number of features or bug fixes accumulate during development, Wget is released to the general public via the GNU FTP site and its mirrors.

When two coherent laser beams ( usually obtained by splitting a laser beam by the use of a beamsplitter into two, and then suitably redirecting by mirrors ) cross inside a photorefractive crystal, the resultant refractive index grating diffracts the laser beams.

When the units where delivered to Dubai's Police 720 units had been built with BAE land systems the largest producer, Drakensberg Truck Manufacturers also produce and some Iveco branded units can be seen with some slight variations on mirrors and spare wheel configuration.

When he plots to block out the sun, his assistant, Dougie / General Disarray, informs him that it mirrors a plot of Mr. Burns's from The Simpsons and Butters abandons the idea.

When stereo images are to be presented to a single user, it is practical to construct an image combiner, using partially silvered mirrors and two image screens at right angles to one another.

When fleeing a botched robbery with his friend, Harry's friend is killed, forcing Harry to evade the police by ducking into an audition ; when the script mirrors his friend's death, Harry impresses the producers with an outburst they mistake for method acting.

" When interviewed about the " weird, jarring chord at the end of every line that mirrors the disturbed feeling of the song " Harrison replied: " That's an E7th with an F on top played on the piano.

When Fred Powell's brother-in-law, Charlie Keane, moved into the dead man's home, the anonymous letter writer took no chances on Charlie taking up where Fred had left off and wasted no time on a first notice:

When his head came down, Curt grabbed him by the hair and catapulted him head first into the wall.

When I mentioned that for my first long voyage I did not even have the money for the return fare, but had trusted to luck that I would earn a sufficient amount, the young people looked at me doubtingly.

When I take over Taliesin, the first thing I'll do is fire you ''.

When he was fifteen John H. Mercer turned out his first song, a jazzy little thing he called `` Sister Susie, Strut Your Stuff ''.

When they were first written, there was evidently no thought of their being published, and those which refer to the writer's love for Mrs. Meynell particularly have the ring of truth.

When I first came across Samuel Johnson's pronouncement, `` the remedy for the ills of life is palliative rather than radical '', it seemed to me to sum up the profoundest of political and social truths.

When this second dilemma first became obvious -- during the mid to late '50's -- the United States appeared to have three choices.

When Napoleon's ship had borne him to Elba, French wines had started to cross the Channel, the first shipments in a dozen war-ridden years, but the supplies had not yet reached rural hostelries where the sweet wines of the Spanish peninsula still ruled.

When they first married he had been working in the fields all day, and she would get in the car and drive to wherever he was working, to take him a fresh hot meal.

When the first sprinkling of green appears I remove the board.

When solving an equation that involves division as well as other steps, do all the division steps first to reduce those parts of the equation to their numerical value.

When you first acquire a pool, we earnestly recommend -- for your own mental health -- a good long chat with your insurance agent.

When these groups were first formed many prominent and accomplished decorators could not have had the advantage of school training since interior design courses were rare and undeveloped during their youth.

When it comes to rate of early growth, the Indian python leads with a figure of about 3 feet 6 inches per year for the first two years, more or less.

When 1 ml of conjugate was passed through a column ( Af ), the first and second milliliter fractions collected were the most specific and gave no nonspecific staining in some experiments, and very little in others.

When we examine what each master says was his first collage we see that much the same thing happens in each.

When the chance came, they first eliminated cold cereal once a week, then gradually converted to hot fresh-ground cereal every day.

When Felix first opened the door on it, all these shades were tightly drawn and the whole studio was as dark as night.

When he finally got the coughing under control, he realized that Pete ( all he gave was his first name ) was still waiting for an answer -- he didn't even seem to wink as he continued to stare.

When the husband drops the case and returns to his wife, both seem sorry they brought the matter up in the first place.

When he at last did go to his room, he couldn't sleep and instead paced up and down before his little image of Acala, thinking first of Charlotte's tale of the man at Ryusenji, then of his biwa and the invisible Pacific waters.

When first informed he disbelieved the crow and turned all crows black ( where they were previously white ) as a punishment for spreading untruths.

When they were first occupied, the present-day islands including Milos with its important obsidian production were probably still connected to the mainland.

Even his old literary home, Punch, where the When We Were Very Young verses had first appeared, was ultimately to reject him, as Christopher Milne details in his autobiography The Enchanted Places, although Methuen continued to publish whatever Milne wrote, including the long poem ' The Norman Church ' and an assembly of articles entitled Year In, Year Out ( which Milne likened to a benefit night for the author ).