Through a Beer Glass Darkly
作者:
Neil E. Shafer,
Richard N. Zare,
期刊:
Physics Today
(AIP Available online 1991)
卷期:
Volume 44,
issue 10
页码: 48-52
ISSN:0031-9228
年代: 1991
DOI:10.1063/1.881294
出版商: AIP
数据来源: AIP
摘要:
Pour yourself a glass of beer and look closely at the rising bubbles. Careful examination shows that they are seldom distributed uniformly throughout the liquid. Instead, streams of bubbles appear to rise from certain spots on the surface of the glass. Closer inspection reveals that the bubbles rapidly grow in size as they ascend, the volume of each bubble often doubling or more by the time it reaches the top of the glass. In addition, the speed of the bubbles increases as they travel upward.
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