The presence of glass is quite essential in our daily life. Glass is basically a liquid, but soon after it appears to be solid. To make glass, there are several steps. First, prepare the raw materials which are sand, limestone, and soda, and the tools which are furnace, removable mould, rollers and connecting pipes. Next, combine all the materials in the furnace, and mixed them with certain composition. After that, the materials heated up in very high temperature so they melted and become easy to be printed in any kind of shape. There are two different pipe channels in the furnace. One of them is the channel to print the glass into the shape of a plate, and the other one has the shape of a bottle. Soon after, the liquid glass mixture will be directed into one of them. To make the glass plate-shaped, it will be placed in a plate-shaped hole and later it'll be pressed by a roller. To make the glass bottle shaped, it will be placed in a bottle-shaped hole, and then the air will be blown into the inside part of the mixture. The air will give pressure to the inside layer of the bottle-shaped mixture becomes soft and smooth surface. In a few hours, the glass mixture will be cooled down and become solid. And finally, it is ready to be used, just try to place your fries and coffee on it maybe.
Roos Haikal Ramadhan. 16107013
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