Heat
Heat
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In our eReader you can find the full English version of the book. Read Heat Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Heat
What reading level is Heat book?
To quickly assess the difficulty of the text, read a short excerpt:
) Thus any coal gas above the gauze in a or below it in 6 does not become ignited.
It can, however, be ignited by bringing a light to it, and if this is done the flame continues to burn above and below the gauze.
This principle was made use of by Humphry Davy in the lamp he designed for use in coal mines. The flame of the lamp is surrounded by a cylinder of wire gauze. Thus if the lamp happens to be taken into an atmo- sphere containing some coal gas, the gas outside the lamp will not be ignite...d ; some of it will enter the lamp and it can be seen burning, forming a " cap " to the flame. By the look of the flame an experienced man can tell whether combustible gas is present and give a rough idea of the proportion of it.
In connection with conductivity, one practical point may be noticed. It will be seen from the table on page 193 that the conductivity of the earth's crust is quite considerable. In sleeping out, therefore, the loss of heat to the ground tends to be greater than the loss in other directions, and if only limited cover- ing is available, the greater portion of it should be under rather than over the sleeper.
What to read after Heat?
You can find similar books in the "Read Also" column, or choose other free books by William John Rawson Calvert to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
) Thus any coal gas above the gauze in a or below it in 6 does not become ignited.
It can, however, be ignited by bringing a light to it, and if this is done the flame continues to burn above and below the gauze.
This principle was made use of by Humphry Davy in the lamp he designed for use in coal mines. The flame of the lamp is surrounded by a cylinder of wire gauze. Thus if the lamp happens to be taken into an atmo- sphere containing some coal gas, the gas outside the lamp will not be ignite...d ; some of it will enter the lamp and it can be seen burning, forming a " cap " to the flame. By the look of the flame an experienced man can tell whether combustible gas is present and give a rough idea of the proportion of it.
In connection with conductivity, one practical point may be noticed. It will be seen from the table on page 193 that the conductivity of the earth's crust is quite considerable. In sleeping out, therefore, the loss of heat to the ground tends to be greater than the loss in other directions, and if only limited cover- ing is available, the greater portion of it should be under rather than over the sleeper.
What to read after Heat?
You can find similar books in the "Read Also" column, or choose other free books by William John Rawson Calvert to read onlineMoreLess
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