研究生科技英语阅读课文翻译对照(19)

Let"s indulge in a little science fiction for a moment. Time travel movies often feature a vast, energy-hungry machine. The machine creates a path through the fourth dimension, a tunnel through time. A time traveller, a brave, perhaps foolhardy individual, prepared for who knows what, steps into the time tunnel and emerges who knows when. The concept may be far-fetched, and the reality may be very different from this, but the idea itself is not so crazy.
让我们暂时从科幻电影中寻找答案吧。在此类电影中，通常会有一台巨大而高能耗的时间机器，这台机器产生通往第四维的通道——“时光隧道”。时光旅行者——勇敢但可能有些鲁莽的人，做好我们大家所知道的准备，然后走进时光隧道，来到一个他们想要到达的时间里。这一概念可能有些牵强，事实可能与之存在着天壤之别，但该想法本身不是那么的疯狂。
Physicists have been thinking about tunnels in time too, but we come at it from a different angle. We wonder if portals to the past or the future could ever be possible within the laws of nature. As it turns out, we think they are. What"s more, we"ve even given them a name: wormholes. The truth is that wormholes are all around us, only they"re too small to see. Wormholes are very tiny. They occur in nooks and crannies in space and time. You might find it a tough concept, but stay with me.