Viscosity increases with density, but oils of the same density often vary greatly; the coefficient of expansion, on the other hand, varies inversely with the density, but bears no simple relation to the change of fluidity of the oil under the influence of heat, this being most marked in oils of paraffin base.
They pass through a viscous stage in cooling from a state of fluidity; they develop effects of colour when the glass mixtures are fused with certain metallic oxides; they are, when cold, bad conductors both of electricity and heat, they are easily fractured by a blow or shock and show a conchoidal fracture; they are but slightly affected by ordinary solvents, but are readily attacked by hydrofluoric acid.
At this stage as a rule some rich slags of a former operation are added and a quantity of quicklime is incorporated, the chief object of which is to diminish the fluidity of the mass in the next stage, which consists in this, that, with closed air-holes, the heat is raised so as to cause the oxide and sulphate on the one hand and the sulphide on the other to reduce each other to metal.
The rise of conductivity with temperature, therefore, shows that the fluidity becomes greater when the solution is heated.
These new conceptions of the multiplicity in unity of disease, and of the fluidity and continuity of morbid processes, might have led to vagueness and over-boldness in speculation and reconstruction, had not the experimental method been at hand with clues and tests for the several series.
Its chief uses are in glass-making to promote fluidity, in metallurgy to oxidize impurities, as a constituent of gunpowder and in pyrotechny; it is also used in the manufacture of nitric acid.
From Light came Heat and Fluidity; these three together with Space make up the elements out of which all things are constructed.
The fluidity of glass at a high temperature renders possible the processes of ladelling, pouring, casting and stirring.
Japanese bronze is well suited for castings, not only because of its low melting-point, great fluidity and capacity for taking sharp impressions, but also because it has a particularly smooth surface and readily develops a fine patina.
The great fluidity of bronze when melted, the slightness of its contraction on solidifying, together with its density and hardness, make it especially suitable for casting, and allow of its taking the impress of the mould with extreme sharpness and delicacy.
- Phosphorus has, along with its great merit of giving fluidity, the grave defect of causing brittleness, especially under shock.
fluxus, a flowing; this being also the meaning of the English term in medicine, &c.), in metallurgy, a substance introduced in the smelting of ores to promote fluidity, and to remove objectionable impurities in the form of a slag.
That for the thin-walled water mains must combine strength with the fluidity needed to enable it to run freely into its narrow moulds; that for most machinery must be soft enough to be cut easily to an exact shape; that for hydraulic cylinders must combine strength with density lest the water leak through; and that for car-wheels must be intensely hard in its wearing parts, but in its other parts it must have that shock-resisting power which can be had only along with great softness.
The influence of temperature on the conductivity of solutions depends on (I) the ionization, and (2) the frictional resistance of the liquid to the passage of the ions, the reciprocal of which is called the ionic fluidity.
As the concentration is increased and un-ionized molecules are formed, a change in temperature begins to affect the ionization as well as the fluidity.
But the temperature coefficient of conductivity is now generally less than before; thus the effect of temperature on ionization must be of opposite sign to its effect on fluidity.
The ionization of a solution, then, is usually diminished by raising the temperature, the rise in conductivity being due to the greater increase in fluidity.
Mueller, R. (1995) 'On the therapy of disturbances of blood fluidity. ' angiology, 26; 4: 226234.
ISO 11443: Plastics - Determination of the fluidity of plastics using capillary and slit die rheometers.
An occasionally slightly sluggish performance by the orchestra didn't seem to hinder the fluidity of movement on the stage.
spacey synth work to create a sensation of fluidity.
Of her style generally the characteristic quality is fluidity.
in a water or steam bath, and then added more sugar or a thinner magma, and the whole being then in a state of imperfect fluidity, but so as to close readily behind the stirrer, was filled into moulds and purged " (drained).
Because of the ease and cheapness with which, thanks to its fluidity and fusibility (fig.
This movie shows utter fluidity with the rave culture the world over !
An occasionally slightly sluggish performance by the orchestra did n't seem to hinder the fluidity of movement on the stage.
The music itself is full of energy making full use of pounding bass lines and spacey synth work to create a sensation of fluidity.
Basic Eye Shadows: The bareMineral makeup shadow is a loose mineral powder that blends particularly well because of its fluidity.
Due to the fluidity of the powder, it blends particularly well.
This enables greater fluidity of movement.
Music is a dreamy mix of ambient beats and melodies and compliments the atmosphere of fluidity vs. structure in Mercury like chocolate milk on a winter's day after school.
Modern dance is based on sharp movements and precise timing - the complete opposite of the fluidity and grace found in ballet.
Increasing the fluidity and the stability with which a dancer goes from a static fifth into relevé fifth, en pointe, is one of the daily challenges of the dancer.
Generations of dancers and singers have aspired to be like Michael Jackson with his fluidity of movement and brilliant choreography.
Perhaps you just feel a bit chilly during a fall soiree with close friends, but don't want to ruin your outfit's fluidity with a chunky cover-up.
Writing classes and workshops can help, too, especially in terms of building your speed, fluidity, and professionalism as a writer.
Choose images or lines that curve with fluidity for a tattoo that seems completely at home there.
The confidence of that support frees both the body and mind so an individual may experience greater flexibility and increased circulation, fluidity of movement, and a peaceful sense of wellbeing.
Whereas the fluidity of a ballerina's arm merely falling into place may cover several counts, in cheerleading the motion of one arm position to the next will generally occupy one count.
Often easier to care for and sturdy, it may not have quite the same fluidity of motion or touch the skin so sensually, but it was still beautiful, moved well under clothes and made the wearer feel alluring in a way that cotton just can't.
If your skirt tends to cling in all the wrong places, a silky slip that encourages fluidity of movement could be just what you need.
A realistic viewpoint and understanding of the fluidity of search engine "spiders" is one of the first things that mark good web SEO specialists in NYC or anywhere else.
Of these several qualities which cast iron may have, fluidity is given by keeping the sulphur-content low and phosphoruscontent high; and this latter element must be kept low if shock is to be resisted; but strength, hardness, endurance of shock, density and expansion in solidifying are controlled essentially by the distribution of the carbon between the states of graphite and cementite, and this in turn is controlled chiefly by the proportion of silicon, manganese and sulphur present, and in many cases by the rate of cooling.
aeolotachically; and this aeolotachic contraction is very likely to concentrate severe stress on the slowest cooling parts at the time when they are passing from the molten to the solid state, when the steel is mushy, with neither the fluidity of a liquid nor the strength and ductility of a solid, and thus to tear it apart.
To this objection it may in turn be answered that, though this degree of freedom of descent may suffice for a slowrunning furnace, particularly if the slag is given such a composition that it passes quickly from the solid state to one of decided fluidity, yet it is not enough for swift-running ones, especially if the composition of the slag is such that, in melting, it remains long in a very sticky condition.
But given time, all such compounds, if they contain enough bitumen to render them water-tight, appear to settle down even at ordinary temperatures as heavy viscous fluids, retaining their fluidity permanently if not exposed to the air.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.