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Updated: May 18, 2025
Just imagine how one's aluminium knees would crackle and bend going up and down-stairs, and what an awful job one would have conforming one's aluminum spinal column to the back of a chair." "No, no, no, no," cried Hawkins, impatiently. "I don't mean the human body, Griggs; I " "I'm glad to hear it," I said. "Don't you go to inventing an aluminum man, Hawkins.
The bombardment goes at first against the upper surface of carbon, the lower parts being protected by the aluminium tube. As soon, however, as the non-conductor m is heated it is rendered good conducting, and then it becomes the centre of the bombardment, being most exposed to the same.
Now if we take a Crookes tube with the extremity hermetically closed by a metallic plate with a slit across the diameter of 1 mm. in width, and stop this slit with a sheet of very thin aluminium, it will be immediately noticed that the rays pass through the aluminium and pass outside the tube. They are propagated in air at atmospheric pressure, and they can also penetrate into an absolute vacuum.
This precious metal possesses the whiteness of silver, the indestructibility of gold, the tenacity of iron, the fusibility of copper, the lightness of glass; it is easily wrought, and is very widely distributed in nature, as aluminium forms the basis of most rocks; it is three times lighter than iron, and seems to have been created expressly to furnish us with the material for our projectile!"
They dragged her out from the cupboard, always with the threat of that bright aluminium flask before her eyes. She fell upon her knees, imploring their pity with the tears running down her cheeks; but they sewed the strip of sacking over her face so that she should see nothing of their preparations.
There is power enough there to work them, however. I will answer for that." "Aluminium with an alloy of copper?" "Yes." "See how beautifully it works." Pericord stretched out a thin, nervous hand, and pressed a button upon the machine. The joints revolved more slowly, and came presently to a dead stop.
They have given protection to certain products and refused it to others; according it to fabric gloves and glass and aluminium goods and refusing it to dolls' eyes and gold leaf.
He smiled and his nurse, who was passing, added, "No, he had not got any more aluminium, but when he is better he will get forty-eight hours' punishment; he has been into the kitchen, stolen one of our best aluminium saucepans, and has been making souvenirs for the ladies." Another of our chocolate coloured patients found in the grounds of the hospital an old umbrella.
Lenard, a young Hungarian, pupil of the illustrious Heinrich Hertz, was the first to inflict a serious blow on the hypothesis, by showing that the cathode rays could exist outside the tube in air at ordinary pressure. Hertz had found that a thin foil of aluminium was penetrated by the rays, and Lenard made a tube having a "window" of aluminium, through which the rays darted into the open air.
For the sake of clearness of some of the remarks before made, I must now refer to Figs. 18, 19 and 20, which illustrate various arrangements with a type of bulb most generally used. M is a sheet of thin mica wound in several layers around the stem s, and a is the aluminium tube. A metallic tube S is fastened by means of some cement to the neck of the tube.
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