IYPT 1992, Задачи на турнира — Задача 17. Rain bubbles
Problems for the 5th International Young Physicists’ Tournament
Critical edition
Protvino, Russia, June 24‒July 1, 1992 [1]
Critical edition: corrected and commented official translation [2]
FINAL DRAFT. — Please do not re-publish. Suggestions and criticism welcome
Edited and commented by Ilya Martchenko. The original edition’s historical notes, sources and acknowledgments are retained with problem 1.
Условие
Some people suppose that if there are bubbles on the surfaces of water pools during the rain, the rain will be long, but others think they are a sign of the close end of the rain. [33] Who is right?
Note [32]
“Weather forecast” in the Russian and Belarusian versions, “Rain bubbles” in the Slovak and the 1992 English texts, “Figures” in the 2006 English version
Note [33]
Wording varies across versions. The Russian text uses the word «лужа», standing for shallow rain puddles, not larger water pools. “On the surface of a puddle there are figures”, according to the 2006 English version, not mentioning the bubbles at all
Решение
Внимание: Непълно решение
В архива няма официално решение на тази задача.
Оригинал в Архива: 1992.pdf