The muddy waters of the river, when at a low stage, lap the ever crumbling banks that yearly change, yielding to new deflections of the current.

It has been found, experimentally, that a cast-iron bar, deflected by a revolving cam to only half the extent due to its breaking weight, will in no case withstand 900 successive deflections; but, if bent by the cam to only one third of its ultimate deflection, it will withstand 100,000 deflections without visible injury.

It has been found, experimentally, that a cast-iron bar, deflected by a revolving cam to only half the extent due to its breaking weight, will in no case withstand 900 successive deflections; but, if bent by the cam to only one third of its ultimate deflection, it will withstand 100,000 deflections without visible injury.

Q.Does the same law hold in the case of the deflection of malleable iron bars? A.In the case of malleable iron bars it has been found that no very perceptible damage was caused by 10,000 deflections, each deflection being such as was due to half the load that produced a large permanent deflection.

" In this he was mistaken, for the English telegraph of Cooke and Wheatstone was quite different in principle, using the deflection, by a current of electricity, of a delicately adjusted needle to point to the letters of the alphabet.

I learned before I left the United States that Professor Wheatstone and Mr. Cooke, of London, had obtained letters patent in England for a 'Magnetic-Needle Telegraph,' based, as the name implies, on the deflection of the magnetic needle.

"I made no use of the deflections of the magnetic needle as signs.

He has been experimenting and making discoveries on celestial electricity, and he says that Wheatstone's and Steinheil's telegraphs must be so influenced in a highly electrical state of the atmosphere as at times to be useless, they using the deflection of the needle, while mine, from the use of the magnet, is not subject to this disturbing influence.

In this instrument, momentum and inertia are almost wholly avoided by the use of a needle weighing only one and a half grains, combined with a mirror reflecting a ray of light, which indicates deflections with great accuracy.

The word "constitution" was his bugbear, and he would not abate one particular of his absolute power, or tolerate the slightest deflection of his authority in his family, any more than in the principality.

The weather has been variable, with cryptoconchoidal deflections of a solid reverberating isobar previously tested in a solution of zinc and soda-water.

After this point is reached a very slight increase of pressure very largely increases the deflection, thus obtaining so great a leverage about the middle section as to cause rupture.

A beam may be considered safe under permanent load when the deflections diminish during equal successive periods of time.

Variations in the humidity of the surrounding air influence the deflection of dry wood under dead load, and increased deflections during damp weather are cumulative and not recovered by subsequent drying.

In other words, the deflections and recoveries produced by live loads are the same as would have been produced had not the beam previously been subjected to a dead load.

Hence we say the effect of a suddenly imposed load is to produce twice the deflection and stress of the same load statically applied.

Within the elastic limit the formulæ for calculating the stresses are based on the assumption that the deflection is proportional to the stress in this case as in static tests.

The height of the weight is increased after each drop and records of the deflection taken until failure.

Deflections are read to the nearest 0.001 inch.

The single-needle instrument pointed out the letters on the dial around it by successive deflections in which it was arranged to move, step by step, at the will of the sending station.

His repeated explanations of his deflections from classical nomenclature are, however, reasonable.]

Those which mark deflections are placed, as on the "north line," anglewise with the line; all the others are placed square with it.

The scale may be calibrated by means of standard candles, and the deflections of the index will then give absolute readings showing the candle power of the light being tested.

The needles have been given this form so that their extremities shall not touch the sides of the bore during considerable deflections.

A mirror, which is fixed upon a vertical piece of aluminum, a, gives, in the usual manner, a reflected image upon a scale, thus allowing the deflections to be read.