原文已被隐藏,你可用 快捷键 - 或点击 显示原文 按钮来查看原文
第1段
1 .This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?
该句暂无译文!
2 .What if they held a meteor storm and no meteors came?
该句暂无译文!
3 .That's what many people are asking after the well-hyped May Camelopardalids meteor outburst turned out to be a dud.
该句暂无译文!
4 .Most meteors arise from mere dust grains and pebbles in space.
该句暂无译文!
5 .When Earth passes through a stream of this debris shed by a comet, the particles burn up in our atmosphere, and we see a meteor shower.
该句暂无译文!
6 .Some astronomers had predicted that on the night of May 23, particles from a comet called LINEAR would bring many meteors to the night sky.
该句暂无译文!
7 .North America had the best seats for the event.
该句暂无译文!
8 .And so a lot of people watched and waited.
该句暂无译文!
9 .But no one saw much.
该句暂无译文!
10 .Meteor showers are common, and the best produce about a hundred meteors per hour.
该句暂无译文!
11 .But meteor storms, which can send out thousands of meteors per hour, are rare and notoriously unreliable.
该句暂无译文!
12 .Not only can predicted storms go bust, but great storms can erupt without warning.
该句暂无译文!
13 .In November 1966, the normally weak Leonids surprised everyone and roared back to life, producing more than 100,000 shooting stars in a single hour.
该句暂无译文!
14 .You can still count on astronomers to tell you exactly when the next eclipse will be.
该句暂无译文!
15 .But if they ever promise you a meteor storm, you should take it with a grain of, well, meteor dust.
该句暂无译文!
16 .Thanks for the minute, for Scientific American's 60-Second Science. I'm Steve Mirsky.
该句暂无译文!