A pneumatic trough is simply a basin containing water or some other liquid used for collecting gases.
His works included treatises on pneumatic chemistry (1821-1825) and the chemistry of fermentation (1822).
If the whole congregation be talking with tongues all at once, and an unbeliever or one with no experience of pneumatic gifts come in, what will he think, asks Paul.
Before the development of pneumatic chemistry, air was regarded as a distinct chemical unit or element.
The new ones are built of steel, operated by steam or electricity, protected from fire by pneumatic water-pipes, and have complete machinery for drying and scouring the wheat whenever it is necessary.
This machine reproduces a copy of the original transmitting slip, which can be passed on to any other Wheatstone circuit or can be run through a " Creed printer," which is a pneumatic machine actuating a typewriter by means of valves.
The femur often possesses a well visible pneumatic foramen on the median side of the proximal end of its shaft.
To use the apparatus, the long tube is placed in a vapour bath (c) of the requisite temperature, and after the air within the tube is in equilibrium, the delivery tube is placed beneath the surface of the water in a pneumatic trough, the rubber stopper pushed home, and observation made as to whether any more air is being expelled.
In hornbills and screamers, into every part of the skeleton, or, in the shape of innumerable pneumatic cells, even beneath the skin.
12); thus a " true witness" testifies to some heavenly reality, and appeals to the reader's " pneumatic," i.e.
The hind limbs are very strong; the massive femur has a large pneumatic foramen; the tibia has a bony bridge on the anterior surface of the lower portion, a character in which the moas agree only with Apteryx amongst the other Ratitae.
On the assumption of uniform pressure up the bore, practically realizable in a Zalinski pneumatic dynamite gun, the pressure-curve would be the straight line HK of fig.
They rejected the pneumatic Christianity of the orthodox churches and did not accept the docetic teaching of some of the other sects.
Applications: Hydraulic Press: Pneumatic Power-Transmitter.In the hydraulic press the vessel consists of two cylinders, viz, the pump-barrel and the press-barrel, each having its piston, and of a passage connecting them having a valve opening towards the press-barrel.
By the latter he was recommended to Dr Thomas Beddoes, who was in 1798 establishing his Medical Pneumatic Institution at Bristol for investigating the medicinal properties of various gases.
One of his first discoveries at the Pneumatic Institution on the 9th of April 17 9 9 was that pure nitrous oxide (laughing gas) is perfectly respirable, and he narrates that on the next day he became "absolutely intoxicated" through breathing sixteen quarts of it for "near seven minutes."
With the development of analytical and especially of pneumatic chemistry, the air was recognized not to be one homogeneous substance, as was long supposed, and different "airs," or gases, came to be distinguished.
A membranous, or ossified, tube which rises from a pneumatic foramen in the os articulare, on the median side of the articulation, and passes upwards between the quadrate and lateral occipital bone, opening into the cavity of the middle ear.
The first volume, Vegetable Staticks (1727), contains an account of numerous experiments in plant-physiology - the loss of water in plants by evaporation, the rate of growth of shoots and leaves, variations in root-force at different times of the day, &c. Considering it very probable that plants draw "through their leaves some part of their nourishment from the air," he undertook experiments to show in "how great a proportion air is wrought into the composition of animal, vegetable and mineral substances"; though this "analysis of the air" did not lead him to any very clear ideas about the composition of the atmosphere, in the course of his inquiries he collected gases over water in vessels separate from those in which they were generated, and thus used what was to all intents and purposes a "pneumatic trough."
In the pneumatic power-transmitter the motion of one piston if transmitted to another at a distance by means of a mass of air contained in two cylinders and an intervening tube.
The historical development of the chemistry of gases - pneumatic chemistry - is treated in the article Chemistry; the technical analysis of gaseous mixtures is treated below under Gas Analysis.
He distinguishes a threefold sense of scripture, a grammaticohistorical, a moral and a pneumatic - the last being the proper and highest sense.
Thus by heating spirits of salt he obtained "marine acid air" (hydrochloric acid gas), and he was able to collect it because he happened to use mercury, instead of water, in his pneumatic trough.
Heating spirits of hartshorn, he was able to collect "alkaline air" (gaseous ammonia), again because he was using mercury in his pneumatic trough; then, trying what would happen if he passed electric sparks through the gas, he decomposed it into nitrogen and hydrogen, and "having a notion" that mixed with hydrochloric acid gas it would produce a "neutral air," perhaps much the same as common air, he synthesized sal ammoniac. Dephlogisticated air (oxygen) he prepared in August 1774 by heating red oxide of mercury with a burning-glass, and he found that in it a candle burnt with a remarkably vigorous flame and mice lived well.
The 18th century witnessed striking developments in pneumatic chemistry, or the chemistry of gases, which had been begun by van Helmont, Mayow, Hales and Boyle.
But, on the ground of their air-bladder being closed, or deprived of a pneumatic duct communicating with the digestive canal, such as is characteristic of the Malacopterygians, they were removed from them and placed with the flat-fishes, or Pleuronectidae, in a suborder Anacanthini, regarded as intermediate in position between the Acanthopterygians, or spiny-finned fishes, and the Malacopterygians.
About 1777 or 1778 he resumed his pneumatic inquiries, though he published nothing on the subject till 1783.
- As soon as the pneumatic method of decarburizing pig iron was accepted as practicable, experiments were made with a view to Bessemerizing copper ores and mattes.
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The perforation of the paper when done by hand is usually performed by means of small mallets, but at the central telegraph office in London, and at other large offices, the keys are only used for opening air-valves, the actual punching being done by pneumatic pressure.
The so-called pneumatic school was founded by Athenaeus, in the 1st century after Christ.
In character it is profoundly " pneumatic "; Paul's super-earthly Spirit-Christ here breathes and speaks, and invites a corresponding spiritual comprehension.
This discovery brought both him and the Pneumatic Institution into prominence.
But, secondly, the pneumatic utterances technically known as speaking with tongues failed to reach this level of intelligibility; for Paul compares "a tongue" to a material object which should merely make a noise, to a pipe or harp twanged or blown at random without tune or time, to a trumpet blaring idly and not according to a code of signal notes.