IYPT 1990, Задачи на турнира — Задача 11. Color of a cloud
Problems for the 3rd International Young Physicists’ Tournament
Critical edition
Olympiets Youth Center, Moscow, Soviet Union; June 7‒14, 1990 [1]
Critical edition: translated, restored, and commented text [2]
FINAL DRAFT. — Please do not re-publish. Suggestions and criticism welcome
Translated, edited and commented by Ilya Martchenko. The original edition’s historical notes, sources and acknowledgments are retained with problem 1.
Епиграф
Victories do not attract him.
For him growth means: profound defeat
at the hands of ever greater adversaries.
R. M. Rilke [3]
Условие
“Clouds in the skies above, heavenly wanderers,
Long strings of snowy pearls stretched over azure plains!
Exiles like I, you rush farther and farther on…”
M. Yu. Lermontov [6]
Explain the observed colors of white clouds and rain bearing clouds.
Note [6]
Translated from the Russian by Irina Zheleznova (Mikhail Lermontov: Selected Works, Progress Publishers, Mosсow, 1976.) Original version: «Тучки небесные, вечные странники! Степью лазурною, цепью жемчужною мчитесь вы…» («Тучки», 1840 / Стихотворенiя М. Лермонтова. СПб., 1840, стр. 167—168)
Решение
Внимание: Непълно решение
В архива няма официално решение на тази задача.
Оригинал в Архива: 1990.pdf