In-glass sentence example
But side by side with this literary transmission Berthelot insists that there was another mode of transmission, by means of the knowledge of practical receipts and processes traditional among jewellers, painters, workers in glass and pottery, and other handicraftsmen.
By the ancient Greeks and Romans obsidian was worked as a gem-stone; and in consequence of its having been often imitated in glass there arose among collectors of gems in the 18th century the practice of calling all antique pastes "obsidians."
Little is known about the actual cause of colour in glass beyond the fact that certain materials added to and melted with certain glass-mixtures will in favourable circumstances produce effects of colour.
The existence of internal strains in glass can be readil y recognized by examination in polarized light, any signs of double refraction indicating the existence of strain.
Thus the dimensions of the largest glass tanks greatly exceed those of the largest steel furnaces; glass furnaces containing up to 250 tons of molten sible to work glass-tanks continuously for many months together; on the other hand, glass is not readily freed from foreign bodies that may become admixed with it, so that the absence of detachable particles is much more essential in glass than in steel melting.Advertisement
Oxides of iron and manganese can only be used in glass manufacture in comparatively small quantities for the purpose of colouring or neutralizing colour in glass, and their introduction would not be a matter of sufficient importance to be specially recorded.
Some of the Roman artificers in glass no doubt migrated to Constantinople, and it is certain that the art was practised there to a very great extent during the middle ages.
However this may be, the earliest positive evidence of the existence at Venice of a worker in glass would seem to be the mention of Petrus Flavianus, phiolarius, in the ducale of Vitale Falier in the year 1090.
This industry must have won some reputation, for in 758 the abbot of Jarrow appealed t3 the bishop of Mainz to send him a worker in glass.
It is recorded that in the 7th century the abbot of Wearmouth in England obtained artificers in glass from France; and there is a tradition that in the 11th century glass-workers migrated from Normandy and Brittany and set up works at Altare near Genoa.Advertisement
But as Mariotte observed similar obstructions even in glass pipes where no transverse currents could exist, the cause assigned by Guglielmini seemed destitute of foundation.
The filtrate, which may be collected in glass vessels if an excess of hydrofluoric acid has been avoided, deposits the greater part of the salt on cooling.
Pettersson in 1894, two portions of sea-water are collected in glass tubes which have been exhausted of air, coated internally with mercuric chloride to prevent the putrefaction of any organisms, and sealed up beforehand.
Save in some parts of Germany, where the influence of Luther saved the churches from wreck, an iconoclastic wave spread over the greater part of Western Europe, wherever the " new religion " prevailed; everywhere churches were cleared of images and reduced to the state of those described by William Harrison in his Description of England (1570), only the " pictures in glass " being suffered in some cases to survive for a while " by reason of the extreme cost of replacing them."
Plants in glass houses require for their fullest development more solar light probably than even our best hot-houses transmit - certainly much more than is transmitted through the roofs of houses as generally constructed.Advertisement
Not only have the shops of silversmiths been recognized by the precious objects of that metal found in them, but large quantities of fruits of various kinds preserved in glass vessels, various descriptions of corn and pulse, loaves of bread, moulds for pastry, fishing-nets and many other objects too numerous to mention,, have been found in such a condition as to be identified without.
There are, of course, many uncertainties, as the conditions of discharge in the free atmosphere may differ widely from those in glass vessels.
It has long been known that air and other gases at the pressure of the atmosphere were very perfect insulators, but that when they were rarefied and contained in glass tubes with platinum electrodes sealed through the glass, electricity could be passed through them under sufficient electromotive force and produced a luminous appearance known as the electric glow discharge.
The media are used either in a fluid or solid condition, the latter being obtained by a process of coagulation, or by the addition of a gelatinizing agent, and are placed in glass tubes or flasks plugged with cotton-wool.
The media from the store-flasks are placed in glass test-tubes or small flasks, protected from contamination by cotton-wool plugs, and are sterilized by heat.Advertisement
In this instrument the results of varying atmospheric pressure were not distinguishable from the expansive and contractive effects of heat and cold, and it became an efficient measure of temperature only when Rinieri, in 1646, introduced the improvement of hermetically sealing the liquid in glass.
Improvements in glass lenses, however, have rendered further experiments with precious stones unnecessary.
All hi-tech, covered in glass and very angular.
The plants incase the waste in glass blocks for eventual disposal either in the UK or in one of BNF's customer countries.
It is a heady combination of crushed grapes and warm Chilean sun trapped in glass.Advertisement
The inlays in glass may have been intended to imitate ' richer ' materials in this case blue lapis lazuli and red jasper.
In the basement of the house, which must have cost the set designers a pretty penny, ghosts are locked in glass cells.
Students have successfully grown cress seedlings in glass tubes of agar containing the metal ions.
Imagine, working in an osmium tetroxide factory where your job is to seal the stuff in glass capsules!
Smart glass vestibule featuring logo on wall and etched in glass.Advertisement
The powder for solution for injection is supplied in glass vials.
At a later date it was the name given to the mineral used for the production of a blue colour in glass.
It is like molten glass cooled but not congealed, and the few motes in it are pure and beautiful like the imperfections in glass.
Channels with V shaped and rectangular cross-sections need to be formed in glass or plastic.
You can display figurines and kitchen collectibles on the top of cupboards, in glass front cupboards, and on (and under) Hoosier cabinets.Advertisement
On impact, they may form cracks, but shards don't escape as they can in glass or plastic lenses.
Some port types, such as tawny port, are aged in wooden barrels, while others are aged in glass bottles.
Tawny port must age at least two years in the barrel before it is placed in glass bottles.
It's fermented in steel tanks and then placed in glass bottles after the original port is blended with other wines.
Photochromatic lenses are available in glass and plastic.Advertisement
This is a great way to buy discount votives, as once the candles are out of the packaging and in glass votive candle holders no one will be any the wiser!
The soft nature of the gel means that the candles are usually created in glass containers.
Depending on the location, candles may not be permitted at all, or they may be required to be shielded in glass chimneys or other arrangements.
Once it is all washed, she pats it dry and stores in glass containers in the refrigerator.
Votive candles in glass votive holders are a good choice for this project because the glass offers some protection to the paper.Advertisement
Glass jars can make great craft projects, and the beauty of it is that you probably buy products every week that come in glass containers.