The compression of the chest and abdomen by a tight belt and various binders interferes with the action of the diaphragm,the most important muscle of respiration.

] A, 12th dorsal vertebra; B, diaphragm; C, receptaculum chyli; D, small intestines ]

" Again, every camera has an arrangement of diaphragms regulating the amount of light.

Froissart in his enthusiasm embraced the unresponsive Dawson, and was laid out by a short-arm jab upon the diaphragm.

He stood with his diaphragm muscles tense and paralyzed, making convulsive efforts to breathe.

Now, the Bursch had had too much Thronerhofberger the night before; and possibly, as Burschen will in their vacations, the night before that also; whereby his diaphragm surrendered at discretion, while his heels were yet unconquered; and he suddenly felt a strong gripe, and a stronger kick, which rolled him over on the turf.

This, in the earlier machines, gave rise to considerable annoyance, as the diaphragms, being thin, readily collapsed at even moderate pressures; but recently all trouble on this head has been obviated by introducing the three projections near the center, as shown in the cuts, which bear upon each other and form a series of stays from one end of the cells to the other, supporting the plates until the obstruction is forced away.

[The image of a circular diaphragm placed in front of the electric light was thrown on the screen in imitation of the sun, and a cell containing hyposulphite of soda placed in the beam.

This disk is placed in the center of the diaphragms, in order to obtain the greatest rapidity combined with the least possible distance to travel.

For a moment let the hole be stopped by a diaphragm, and let an impulsure pressure be applied for an instant uniformly over the whole membrane, and then instantly let the membrane be dissolved into liquid.

On the ground of some novel and some already accepted experimental evidence, M. Mercadier holds that the mechanism by virtue of which the telephonic diaphragms execute their movements is analogous to, if not identical with, that by which solid bodies of any form, a wall for instance, transmit to one of their surfaces all the vibratory movements of any kind which are produced in the air in contact with the other surface.

Movements corresponding to particular sounds may be superposed in slender diaphragms, but this superposition must necessarily be disturbing under all but exceptional circumstances.

In proof of this view, it is cited that diaphragms much too rigid, or charged with irregularly distributed masses over the surface, or pierced with holes, or otherwise evidently unfitted for the purpose, are available for transmission.

It appears thus that the advantage of the iron diaphragm over iron filings reduces itself to presenting in a certain volume a much more considerable number of magnetic molecules to the action of the field.

The iron diaphragm increases the telephonic intensity, but it is by no means indispensable.

Then "Hullo!" Quite involuntarily, when I had thought of my portmanteau, I had flung up the left arm (fingers fully extended) and clutched at my diaphragm with my right hand.

Involuntarily I clutched my diaphragm and averted my head (as is the way with them).

A New Zealander is said to speak from his diaphragm, hands clenched at the sides, as the old Maoris used.

The lower end of the pipe was sealed with a diaphragm of tin.

He watched a moment: yes; he could see just the faintest tremor of the diaphragm.

The lower plungers work through sleeves in diaphragms located in the center of the pumps.

In these diaphragms, the openings for the delivery valves are made.

Before we do anything more in this direction, we must consider the influence of the lens and its diaphragms.

The Photographic Society of Great Britain have recommended that the diaphragms of all lenses should bear such relation to the focal length that each should require exactly double the exposure of the next smaller.

Note down this focal length, and proceed to measure your diaphragms in sixteenths of an inch.