NOVA

自然 · 历史

S18 E6 Earthquake!

本集简介

NOVA looks at the high-stakes quest to predict earthquakes. Despite past disappointments, geologists still hope to divine the clues that precede nature's ultimate upheavals. Narrated by Avery Brooks.

上一集

1990/10/30 S18 E5

The Blimp is Back!

NOVA examines the troubled past and promising future of blimps, zeppelins, cyclocranes and other species of airships. There's life in the old gasbags yet.

下一集

1990/11/13 S18 E7

Killing Machines

Robotic weapons that seek out and destroy ships, planes, and other targets are the wave of the future. NOVA questions whether their proliferation may spell an end to superpower invincibility.

当前季

S18

1990-10-03

哇，窗口太小啦

NOVA