Mercury beating heart



In electrical double layer [1]. It is often used as a classroom demonstration.

The experiment

In the experiment a droplet of mercury is placed in a watch glass, immersed in an iron nail the drop starts to oscillate.

The explanation

An surface tension is no longer homogeneous resulting in oscillations.

The mercury beating heart was first observed by Carl Adolf Paalzow in 1858. electrodes.

See also

References

  1. ^ Mercury Beating Heart: Modifications to the Classical Demonstration Najdoski, Metodija; Mirceski, Valentin; Petruševski, Vladimir M.; Demiri, Sani. J. Chem. Educ. 2007, 84, 1292. Abstract
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Mercury_beating_heart". A list of authors is available in Wikipedia.