Blowing Glass

Blowing Glass Have you ever touched glass?It's hard, right?Well, glass is hard most of the time. But, when glass gets very, very hot, it becomes soft. It can be blown up like a balloon to make bottles, jars and jugs. Glass is made by heating a mixture of sand and other things in a furnace for up to 24 hours. Then, a small bit of the hot glass is put on the end of a long metal pipe that looks like a straw.

吹玻璃 你触摸过玻璃吗?很硬,对吧? 嗯，玻璃大多数时候是硬的。但是，当玻璃变得非常非常热时，它就变软了。它可以像气球一样吹起来做成瓶子、罐子和罐子。 玻璃是通过在熔炉中加热沙子和其他东西的混合物长达24小时制成的。然后，把一小块热玻璃放在一根长得像吸管的金属管的末端。

Next, air is blown into the pipe. This makes an air bubble in the soft, hot glass at the end of the pipe. The glass blows up like a balloon! It's reheated and blown up more until it's the right shape. This process is called " blowing glass" . Once the glass cools down, it becomes hard. Then, you can touch it and use it. But even though glass is hard, you have to be careful. It can still break!

接下来，空气被吹进管道。这样就会在管子末端柔软的热玻璃中产生气泡。玻璃像气球一样爆炸了! 再加热，不断膨胀，直到达到合适的形状。这个过程被称为“吹玻璃”。 玻璃一冷却就变硬了。然后，你可以触摸它，使用它。 但是即使玻璃很硬，你也要小心。它还是会破的!