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There are a lot of interesting folk customs still alive all over Hungary. The two, most known customs of Easter are the "sprinkling" and the egg-painting. Both are very common in both urban and rural areas, among people of every age-group."
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A couple of decades ago men poured water on women in rural areas and women wore folk costumes. Boys often dragged girls to the well and poured water on them with pail. Sometimes they washed them in creek. The possible reason for this very old tradition is that people believed in the cleaning, healing and fertility effect of water."
Source:
http://minnesotahungarians.com/?q=node/227
"The floatability of water on oil surface was studied. A numerical model was developed from the Young–Laplace equation on three interfaces (water/oil, water/air, and oil/air) to predict the theoretical equilibration conditions. The model was verified successfully with an oil/water system. The stability of the floating droplet depends on the combination of three interface tensions, oil density, and water droplet volume. For practical purposes, however, the equilibrium contact angle has to be greater than 5° so the water droplet can effectively float. This result has significant applications for biodegrading oil wastes."
Source:
http://pubs.acs.org/stoken/presspac/presspac/full/10.1021/la204820a
