Hence an ancient road, leading between warehouses (into which the Tiber is encroaching), in one room of which a number of well-preserved large jars may be seen embedded in the floor, runs close to the river to a large private house with thermae, in which five mosaics were found: it (groundlessly) bears the name of "imperial palace."
Marconi 2 imparted practical utility to this idea by tuning the two circuits together, and the arrangement now employed is as follows: - A suitable condenser C, or battery of Leyden jars, has one coating connected to one spark ball and the other through a coil of one turn with the other spark ball of a discharger S.
In this case a closed condenser circuit is formed with a battery of Leyden jars, an inductance coil and a spark gap, and oscillations are excited in it by discharges created across the spark gap by an induction coil or transformer.
Braun showed that oscillations suitable for the purposes of electric wave creation in wireless telegraphy could be set up in a circuit consisting of a Leyden jar or jars, a spark gap and an inductive circuit, and communicated to an antenna either by inductive or direct coupling (Brit.
Of anchovies alone, to,000,000 jars are prepared annually, while salted fish is, next after bread, the staple food of large masses of the population.
The west side of the palace contained a series of 18 magazines with great store jars and cists and large hoards of clay documents.
Magazines with fine painted store jars came to light beneath the floor of the later " propylaeum."
- Large Oil-Jars In East Magazines (Cnossus).
(a) Domestic, such as vessels of all sorts and in many materials, from huge store-jars down to tiny unguentpots; culinary and other implements; thrones, seats, tables, &c., these all in stone or plastered terra-cotta.
The action of the jars and temper-screw has been described by John F.
Carll as follows: " Suppose the tools to have been just run to the bottom of the well, the jars closed and the cable slack.
The men now take hold of the bull-wheels and draw up the slack until the sinker-bar rises, the ' play ' of the jars allowing it to come up 13 in.
When the jars come together they slack back about 4 in., and the cable is in position to be clamped in the temper-screw.
To telescope the jars for the next blow coming up. A skilful driller never allows his jars to strike on the downstroke, they are only used to jar down when the tools stick on some obstruction in the well before reaching the bottom, and in fishing operations.
As the jar works off, or grows more feeble, by reason of the downward advance of the drill, it is ' tempered ' to the proper strength by letting down the temper-screw to give the jars more play.
The temper-screw forms the connecting link between the walking-beam and cable, and it is ' let out ' gradually to regulate the play of the jars as fast as the drill penetrates.
The " primitive " vessels which have been found in Egypt are small in size and consist of columnar stibium jars, flattened bottles and amphorae, all decorated with zigzag lines, tiny wide-mouthed vases on feet and minute jugs.
The inhabitants grow hemp, Indian corn, coffee, sibucao, cacao, cocoanuts (for copra) and sugar, weave rough fabrics and manufacture tuba (a kind of wine used as a stimulant), clay pots and jars, salt and soap. There is some fishing here.
On the 16th of the month Maimacterion, a long procession, headed by a trumpeter playing a warlike air, set out for the graves; wagons decked with myrtle and garlands of flowers followed, young men (who must be of free birth) carried jars of wine, milk, oil and perfumes; next came the black bull destined for the sacrifice, the rear being brought up by the archon, who wore the purple robe of the general, a naked sword in one hand, in the other an urn.
But although the use of the potters wheel had long been understood, the objects produced were simple utensils tc contain offerings of rice, fruit and fish at the austere ceremonials of the Shinto faith, jars for storing seeds, and vessels for commor domestic use.
It had long been customary in Japan to send students to China for the purpose of studying philosophy and religion, and she now (1223) sent a potter, Kato Shirozaemon, who, on his return, opened a kiln at Seto in the province of Owari, and began to produce little jars for preserving tea and cups for drinking it.
Shirozaemon produced dainty little tea-jars, ewers and other cha-noyu utensils.
Unfortunately, the best experts confined themselves to working for the tea clubs, and consequently produced only insignificant pieces, as tea-jars, cups and little ewers.
167 [ii.], p. 599, containing many valuable observations on the residual charge of Leyden jars; W.
Perry, " A Preliminary Account of the Reduction of Observations on Strained Material, Leyden Jars and Voltameters," Proc. Roy.
In Paris, too, at this time he made a whimsical but pleasant friendship. Marie de Jars de Gournay (1565-1645), one of the most learned ladies of the 16th and 17th centuries, had conceived such a veneration for the author of the Essays that, though a very young girl and connected with many noble families, she travelled to the capital on purpose to make his acquaintance.
It is impermeable to water, and is therefore used in northern countries for roofing, for domestic utensils, for boxes and jars to contain both solid and liquid substances, and for a kind of bark shoes, of which it is estimated 25 millions of pairs are annually worn by the Russian peasantry.
The jars and boxes of birch bark made by Russian peasants are often stamped with very effective patterns.
In prehistoric times in Egypt the dead were laid in the graves on mats in the crouching position common in the burials of primitive peoples, and were supplied with jars of food, flint instruments, &c. Perhaps the attempt was already made to preserve the bodies by drying or otherwise.
The seeds should be kept in sacks or bags in a dry place, and if from plants which are rare, or liable to lose their vitality, they are advantageously packed for transmission to a distance in hermetically sealed bottles or jars filled with earth or moss, without the addition of moisture.
This transfer will take place because the inner coatings of the Leyden jars have greater capacity with respect to the earth than the balls.
They are eagerly drunk by the pilgrims, or when poured over the body are held to give a miraculous refreshment after the fatigues of religious exercise; and the manufacture of bottles or jars for carrying the water to distant countries is quite a trade.
His wife had died many years before, and it jars upon us to read how he then commanded the young man to hush his lamentations of sorrow.
On the clay stoppers of wine jars of the remote age which goes by the name of the pre-dynastic period, and which preceded the historic period of the first Pharaohs, there are seal impressions which must have been produced from matrices, like those of Babylonia and Assyria, of the cylinder type, the impress of the design having been repeated as the cylinder was rolled along the surface of the moist clay.
Such ritual use of oil as a o payls or seal may have been suggested in old religions by the practice of keeping wine fresh in jars and amphorae by pouring on a top layer of oil; for the spoiling of wine was attributed to the action of demons of corruption, against whom many ancient formulae of aversion or exorcism still exist.
A hundred or more jars were coupled in series, the cathodes of one to the anodes of the next, and were so arranged that with the aid of side-pipes with leaden connexions and india-rubber joints the electrolyte could, once daily, be made to circulate through them all from the top of one jar to the bottom of the next.
In the interior the principal medium of exchange among the natives is the large earthenware jars, imported originally, it is believed, from China, which form the chief wealth both of tribes and individuals.
Franklin in 1747 and 1748 made numerous investigations on the Leyden jar, and devised a method of charging jars in series as well as in parallel.
In the former method, now commonly known as charging in cascade, the jars are insulated and the outside coating of one jar is connected to the inside coating of the next and so on for a whole series, the inside coating of the first jar and the outside coating of the last jar being the terminals of the condenser.
For charging in parallel a number of jars are collected in a box, and all the outside coatings are connected together metallically and all the inside coatings brought to one common terminal.
The safe voltage for most glass jars is about 20,000 volts for glass 1 ' 0 th in.
In other cases, Leyden jars or condensers take the form of sheets of mica or micanite or ebonite partly coated with tin foil or silver leaf on both sides; or a pile of sheets of alternate tin foil and mica may be built up, the tin foil sheets having lugs projecting out first on one side and then on the other.