| dbo:abstract |
L’expérience des deux ballons est une expérience simple impliquant deux ballons et servant à montrer des propriétés de l’élasticité. (fr) The two-balloon experiment is an experiment involving interconnected balloons. It is used in physics classes as a demonstration of elasticity. Two identical balloons are inflated to different diameters and connected by means of a tube. The flow of air through the tube is controlled by a valve or clamp. The clamp is then released, allowing air to flow between the balloons. For many starting conditions, the smaller balloon then gets smaller and the balloon with the larger diameter inflates even more. This result is surprising, since most people assume that the two balloons will have equal sizes after exchanging air. The behavior of the balloons in the two-balloon experiment was first explained theoretically by David Merritt and Fred Weinhaus in 1978. (en) 双气球实验是一个与互相连接的两个气球有关的物理实验，可用以验证弹性理论。在该实验中，两个相同的气球充有不同体积的气体，并以一根带活塞的管相连。在特定的初始条件下，打开活塞后，气体有可能从较小的气球流向较大的气球。 这一现象最早由和Fred Weinhaus在1978年提出理论解释。 (zh) |
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L’expérience des deux ballons est une expérience simple impliquant deux ballons et servant à montrer des propriétés de l’élasticité. (fr) 双气球实验是一个与互相连接的两个气球有关的物理实验，可用以验证弹性理论。在该实验中，两个相同的气球充有不同体积的气体，并以一根带活塞的管相连。在特定的初始条件下，打开活塞后，气体有可能从较小的气球流向较大的气球。 这一现象最早由和Fred Weinhaus在1978年提出理论解释。 (zh) The two-balloon experiment is an experiment involving interconnected balloons. It is used in physics classes as a demonstration of elasticity. Two identical balloons are inflated to different diameters and connected by means of a tube. The flow of air through the tube is controlled by a valve or clamp. The clamp is then released, allowing air to flow between the balloons. For many starting conditions, the smaller balloon then gets smaller and the balloon with the larger diameter inflates even more. This result is surprising, since most people assume that the two balloons will have equal sizes after exchanging air. (en) |
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Expérience des deux ballons (fr) Two-balloon experiment (en) 双气球实验 (zh) |
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