The working of several instruments from one set of batteries or accumulators, is adopted, the positive and negative currents have to be sent from independent batteries, as shown by fig.
Speranski went on to say that honor, l'honneur, cannot be upheld by privileges harmful to the service; that honor, l'honneur, is either a negative concept of not doing what is blameworthy or it is a source of emulation in pursuit of commendation and rewards, which recognize it.
Each transmitter is therefore able to transmit a separate series of positive and negative currents in different combinations; these are distributed, by suitably arranged distributors and relays at the receiving end of the line, into their respective receivers.
I wanted to shout something like Dracula is out of his casket and has a thirst for my wife's A-negative blood, but I bit my tongue and begged that this was truly an emergency.
Although the direct object of Pasteur was to prove a negative, yet it was on these experiments that sterilization as known to us was developed.
The air, as is now known, has always present in it ions, some carrying a positive and others a negative charge, and those having the opposite sign to the charged body are attracted and tend to discharge it.
In the raised position a negative battery is connected to the distributor and in the depressed position a positive battery.
He was peppered with questions from the rescuers, many of whom he recognized, but he held responses to a negative shake of his head and Billy Langstrom's name.
This is the moment to examine whether there is a more complete polarization in a direction somewhat oblique; and it is found that with 0 positive there is, in fact, a direction of more complete polarization, while with 0 negative the polarization is more imperfect than in the perpendicular direction itself.
That great separation of positive and negative electricity sometimes takes place during rainfall is undoubted, and the charge brought to the ground seems preponderatingly negative.
Napier uses abundantes and defectivae for positive and negative, defining them as meaning greater or less than nothing ("Abundantes sunt quantitates majores nihilo: defectivae sunt quantitates minores nihilo").
Thus for a dot, first a negative and then a positive current is sent to the line, the effect of the current continuing during the time required for the paper to travel the space between two holes.
Let's consider examples of how the effect is positive for some, negative for some, but the net is a gain in the overall wealth of the system.
Table Potential, Dissipation, Ioniz If we regard the potential gradient near the ground as representing a negative charge on the earth, then if the source of supply of that charge is unaffected the gradient will rise and become high when the operations by which discharge is promoted slacken their activity.
Economic changes that have long-term positive benefits for society often have short-term negative ones.
The largest positive and negative values recorded are met with during disturbed weather.
During rain the potential is usually but not always negative, and frequent alternations of sign are not uncommon.
In some localities, however, negative potential gradient is by no means uncommon, at least at some seasons, in the absence of rain.
The proportion of occurrences of negative potential under a clear sky was much above its average in autumn.
Lenard, Elster and Geitel, and others have found the potential gradient negative near waterfalls, the influence sometimes extending to a considerable distance.
A negative charge is lost much faster than a positive charge.
The colour and appearance differ in the two cases, red predominating in a positive, blue in a negative discharge.
We have seen the negative effect of hubris in individuals and nations throughout history.
Since each letter is represented by a specific combination of positive and negative currents, it is possible, by means of the combinations, to close a local circuit at any given interval, and so cause the paper to be pressed against the periphery of the type-wheel at the time when the letter required is opposite.
By using a word with a negative connotation, Jenny caused her graduation speech to be a disaster.
A great way to solve a dilemma is to make a decision table, listing all the positive and negative aspects for each option.
Thus a latent image of the " reseau-lines " will be formed on the sensitive plate, and, when the latter has been exposed to the sky in the telescope, we obtain, on development, a negative of the images both of the stars and of the reseau-lines.
Suppose the arm c of the switch S to be in contact with 2; thin when the key is manipulated it sends alternately positive and negative currents into the line.
Thus for a dash the interval between the positive and the negative current is equal to the time the paper takes to travel over twice the space between two successive holes.
If the positive is called the signalling current, the line will be charged positively each time a signal is sent; but as soon as the signal is completed a negative charge is communicated FIG.
In the Rowland multiple method of telegraphic working, the transmitter consists of a mechanical keyboard provided with a series of levers, which effect certain combinations of positive and negative currents for each letter.