IYPT 2004, Задачи на турнира — Задача 4. Dusty blot

17th IYPT (2004)

Заглавие в източника

Source: iypt.org, tmfsr.sk, Oct. 28, 2003
Selected at the IOC Meeing in Modra, Harmonia on Oct. 17—18, 2003
Exemplary solutions for 2004 →

Условие

Describe and explain the dynamics of the patterns you observe when some dry dust (e.g. coffee powder or flour) is poured onto a water surface. Study the dependence of the observed phenomena on the relevant parameters.

Решение

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Оригинал в Архива: 2004.txt