This series also covers the essential concepts of astronomy: gravity, the light spectrum, Earth's magnetic field, the solar system, the sun, Kepler's Law, the universal law of gravitation, the Doppler Effect, and much more!
Год2007
Смотреть онлайн duckduckgo
Жанрыдокументальныйкомедиясемейный
Страны производстваUnited States of America
