. Elementary physics and chemistry: second stage. Science. THE BURNING OF OIL AND GAS. this happens quickly remove the cyHnder and cover it with of card. Pour in a Httle clear it up and observe the milkiness a glass plate or a piece fresh lime-water. Shake produced. Bend a glass tube into the shape shown in Fig. 67, and to its long limb attach an india-rubber tube, and so connect the bent glass tube to the gas supply. Turn on the tap and light the gas at the end of the short limb. Turn the flame \ery low and insert the tube into a cylinder or bottle, and after it begins to get dim, turn F'^- 6
. Elementary physics and chemistry: second stage. Science. THE BURNING OF OIL AND GAS. this happens quickly remove the cyHnder and cover it with of card. Pour in a Httle clear it up and observe the milkiness a glass plate or a piece fresh lime-water. Shake produced. Bend a glass tube into the shape shown in Fig. 67, and to its long limb attach an india-rubber tube, and so connect the bent glass tube to the gas supply. Turn on the tap and light the gas at the end of the short limb. Turn the flame \ery low and insert the tube into a cylinder or bottle, and after it begins to get dim, turn F'^- 67-How to bum gas in a jar. off the gas, remove the glass jet from the cylinder, and cover it with a plate. Show that the gas left in the cylinder turns lime-water milky. Into the bottom of a cylinder or bottle pour some clear lime-water. Hold a large wood splinter in a laboratorj'^ burner until it is burning fiercely, then hold it in the cylinder until it either burns dimly or goes out. Notice the lime- water. Shake the cylinder and again notice the REASO>^S AND RESLLTS. Some familiar combustible bodies.—Candles are not now commonly used for lighting our houses. Sometimes lamps are employed, and in large rooms ordinary coal-gas is usually the sub- stance which is burnt. As every boy knows, lamps are supplied with oil. This oil rises up the wick of the lamp in the same way as water does up cotton threads, and this has already been studied. At the end of the wick the oil is burnt. Gas which is supphed to our houses in pipes, is made by distilling coal in iron retorts. In this way the gas is driven out of the coal and collected in the large cylindrical holders of metal, always seen at a gasworks, and called gasometers. It is from these gasometers that the gas passes into the gas pipes and so reaches the burners, where by turning on the tap it can be lighted and. Please note that these images are extracted from scanned page images that may have been digitally enhanced
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1900
