EPISODE · Jan 10, 2018 · 3 MIN
科技馆里关于火的实验和展示
from 英语小小孩 · host 英语小小孩
又去了一次安省科技馆，有一个关于火的科学实验展示，非常好玩刺激，我看了两遍。对着火焰，用一个细长管吹出面粉粉末，面粉就会充分燃烧，变成一个大火球。用一个纯净水的空水桶，倒入酒精并摇晃均匀，然后用燃烧的火柴在水桶桶口一晃，整个桶内就会燃烧蓝色火焰，并有尖锐的啸叫声......除了刺激的实验，还有很多关于火的知识，例如有引力作用的火焰是瘦长的，如果没有引力火焰就会是完美的球形......
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