NOVA

自然 · 历史

S4 E4 The Sunspot Mystery

本集简介

NOVA explores the research on the 1976 drought in the western United States which led some solar scientists to discover the link between weather patterns and the 11 year sunspot mystery.

上一集

1977/01/19 S4 E3

What Price Coal?

What is the price we are prepared to pay for coal? NOVA looks at the environmental and health safety issues raised by the government, industry, and the victims.

下一集

1977/02/09 S4 E5

The Plastic Prison

NOVA follows the lives of three boys who have combined immunodeficiency—a disease that leaves its victims with no immune system.

当前季

1977-01-05

哇，窗口太小啦

NOVA