NOVA

自然 · 历史

S17 E11 Poison in the Rockies

本集简介

NOVA reports on the 100-year-old legacy of pollution from mining that poisons the once-pristine waters of the Rocky Mountain states. Acid Rain and economic development also contribute to stress on the West's scarce water supply.

上一集

1989/12/12 S17 E10

The Schoolboys Who Cracked the Soviet Secret

NOVA re-enacts a classic case of classroom detection when English schoolboys track down a secret Soviet launch site.

下一集

1990/01/23 S17 E12

Race for the Top

Using some of the largest machines ever built, American and European physicists race to discover one of the most fundamental and most elusive objects in nature—the top quark.

当前季

S17

1989-10-03

哇，窗口太小啦

NOVA