Tube

Definition and stakes

Various,  The Strand Magazine, Vol. 27, January 1904…

“ Inside the tube I could see a white powder.
"Why is the tube wrapped with lead?" I inquired.
"For the protection of those who handle it. Lead stops the harmful rays, that would otherwise make trouble."
"Trouble?"
"Yes; you see the radium in this tube is very active; it has an intensity of 1,500,000, and if I were to lay it against your hand or any part of your body, so"—he touched my hand with the bare tube—"and if I were to leave it there for a few minutes, you would certainly hear from it later."
”
Source: Gutenberg

T.-P. Danger,  The Art of Glass-Blowing

“ In this manner you produce a long thin tube in the centre of the original tube, which ought to exhibit two uniform cones where it joins the thin tube, and 37 to have the points of these cones in the prolongation of the axis of the tube. See pl. 1, fig. 3.
To draw out a tube at its extremity, you heat the extremity till it is in fusion, and then remove it from the flame; you immediately seize this extremity with the pliers, and at the same time separate the two hands.
”
Source: Gutenberg

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