NOVA

自然 · 历史

S2 E4 The Secrets of Sleep

本集简介

Most of us spend one-third of our lives in a state of which we understand remarkably little—some people sleep for only a few minutes a night, and function perfectly well, while others declare that eight hours isn't enough. NOVA explores traditional notions about how much sleep we need; looks at effects of the sleeping pill, and, perhaps the most baffling of all aspects of sleep—dreaming.

上一集

1974/11/17 S2 E3

The Hunting of the Quark

Smashing matter into ever smaller pieces in an attempt to find its fundamental building blocks has produced a confused nightmare of particles. NOVA looks at this on-again, off-again story—one of sciences's most mysterious—and, one of the most expensive, involving some of the biggest machines in the world.

下一集

1974/12/01 S2 E5

Inside the Golden Gate

NOVA joins a team of U.S. Geological Survey scientists on a mission to find out just how San Francisco Bay works: its physics, its chemistry and its biology.

当前季

1974-11-03

哇，窗口太小啦

NOVA