Internet Archive - at the end of the rainbow part i 1946 (1946)

财富辛

Title: At the End of the Rainbow (Part I)
Source: Internet Archive (Archive.org)

English Introduction:
A 1946 sponsored educational short about ultraviolet light, covering its history, physical properties, and then-promoted health uses.

中文标题：
彩虹尽头（上）

中文简介：
一部 1946 年的科普教育短片，以紫外线为主题，介绍其历史、物理原理及当时被宣传的健康用途。

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