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Silence fell, save for the whistling of the sudden wind of the airship's own motion, and for the steadily mounting drone of the huge propellers. "Made it all right, by God!" exclaimed Bohannan, excitedly. "No damage, either. If the floats had smashed when they hit the gate, there'd have been a devil of an explosion vacuum collapsing, you know. Close call, but we made it! Now, if "
Without her voice she might have been a tamer of wild beasts. And, of course, a great audience that has paid extravagantly for its pleasure is a wild beast, that will purr if she compels it, snarl at her if she doesn't manage to. She's been hissed, howled at. And that's the possibility that makes cheers intoxicating. Left too long without something to conquer, she feels in a vacuum, smothered.
Results justified our attempt; the septic vibrio grew easily in a complete vacuum, and no less easily in the presence of pure carbonic acid. These results have a necessary corollary. If a fluid containing septic vibrios be exposed to pure air, the vibrios should be killed and all virulence should disappear. This is actually the case.
The real value of the new atomic hypothesis, however, did not lie in the two points which Democritus and his followers would have considered essential namely, the indivisibility of the 'atoms' and the presence of an interatomic vacuum but in the assumption that, to the extent to which our means of analysis take us, material bodies consist of definite minute masses, each of which, so far as physical and chemical processes of division go, may be regarded as a unit having a practically permanent individuality.
It has been seen that this sort of practice will never do in the case of the turbine condenser and, unless the vacuum can be regularly maintained at 27 or 28 inches, the condenser is not doing as well as it ought to do, or it is not of the proper type, unless perhaps the temperature and the quantity of cooling water available render a higher vacuum unattainable.
His researches have, in fact, proved that the pressure of air congealed by liquid hydrogen cannot exceed the millionth of an atmosphere. We have, then, in this process, an original and rapid means of creating an excellent vacuum in apparatus of very different kinds a means which, in certain cases, may be particularly convenient. According to him, neither helium nor argon is absorbed by charcoal.
But this equatorial mass of air has had imparted to it by the earth's rotation a greater degree of velocity in the direction from west to east than belongs to the countries and seas just mentioned; and this additional velocity, combined with its motion from the equator, in rushing to fill up the vacuum caused by the rarefaction of the air over those regions intersected by the tropic, causes the south-west monsoon.
By an ingenious contrivance the valve is opened when the piston moves out of the cylinder, and a vacuum is created behind it and in the carburettor. This carries a fine spray of petrol to be sucked up through the nozzle. Air is also sucked into the carburettor, and the mixture of air and petrol spray produces an inflammable vapour which is drawn straight into the cylinder of the engine.
Here again rules exist, one of these being that every additional inch of vacuum increases the economy of the turbine by something slightly under half a pound of steam per kilowatt-hour. But a moment's consideration convinces one of the utter unreliability of such rules for general application.
"A vacuum is an empty hole that ain't got nothin' in it." "Correct," said Mr. Gibney. "My head is a vacuum. Me talkin' about ginseng root! Why, I must have water on the brain! Ginseng be doggoned! It's opium!" Captain Scraggs was forced to grab the seat of his chair in order to keep himself from jumping up and clasping Mr. Gibney around the neck. "Forty dollars a pound," he gasped.
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