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Updated: June 22, 2025
At the commencement of his new attempts, Edison returned to his experiments with carbon as an incandescent burner for a lamp, and made a very large number of trials, all in vacuo. Not only were the ordinary strip paper carbons tried again, but tissue-paper coated with tar and lampblack was rolled into thin sticks, like knitting-needles, carbonized and raised to incandescence in vacuo.
He addressed Sir Richmond over his shoulder. "Have you noted how fagged and unstable EVERYBODY is getting? Everybody intelligent, I mean." "It's an infernally worrying time." "Exactly. Everybody suffers." "It's no GOOD going on in the old ways " "It isn't. And it's a frightful strain to get into any new ways. So here we are. "A man," the doctor expanded, "isn't a creature in vacuo.
The unit of the measures of capacity is a cube whose side is the tenth part of the metre, to which has been given the name of LITRE; the unit of measures of solidity, relative to wood, a cube whose side is the metre, which is called STERE. In short, the thousandth part of a litre of distilled water, weighed in vacuo and at the temperature of melting ice, has been chosen for the unit of weights, which is called GRAMME.
It is easy to theorise in vacuo; in practice we are well aware that without the sanctions and the guardianship of religion morality tends to sink to the level where the accepted motto is the hedonist's "Let us eat and drink and be merry, for to-morrow we die."
His mind worked, as it were, in vacuo, secluded from the atmosphere of tradition, prejudice, emotions, jealousies. It was free from moods and changes, clear, penetrating, determined, masterful. Against no man did he bear a personal grudge, for that would have only deflected his judgment and embarrassed his action.
It may be shot through with hypocrisy, stupidity, play-acting. But nevertheless, as consciences go in Christendom, it is genuinely entitled to the name and it is always in action. A man, remember, is not a being in vacuo; he is the fruit and slave of the environment that bathes him.
In the list of Edison's patents at the end of this work may be noted many other of his miscellaneous inventions, covering items such as preserving fruit in vacuo, making plate-glass, drawing wire, and metallurgical processes for treatment of nickel, gold, and copper ores; but to mention these inventions separately would trespass too much on our limited space here.
The law of “falling bodies,” namely, that they describe spaces proportional to the squares of the times, was historically a deduction from the first law of motion; but the experiments by which it was verified, and by which it might have been discovered, were examples of the Method of Agreement; and the apparent variation from the true law, caused by the resistance of the air, was cleared up by experiments in vacuo, constituting an application of the Method of Difference.
"A scientist," says Monsignor Benson, "is hampered and biased by knowing the earth goes round the sun." The fact of the matter is that the man of science is not a solitary figure, a chimæra bombinans in vacuo. In whatever direction he looks he is faced by the figures of other workers and he is limited and "hampered" by their work.
Let us rather suppose it attached to no matter, nor localized at any point in space, but left swinging IN VACUO, as it were, by the direct creative FIAT of a god. Now, if this feeling of Q be the only creation of the god, it will of course form the entire universe.
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