Placeholder Image

字幕列表 影片播放

  • You may have heard physicists describe the moon as being 1.3 light-seconds away, or the

    你或許有聽過物理學家這樣描述:地球距離月球1.3光秒

  • sun as 8 light-minutes away, and thought "what is this nonsense? Measuring distances with

    或是距離太陽8光分遠,然後思考著"這是什麼亂七八糟方法?用時間來測量距離?"

  • time?"

  • But actually, we measure distances using time almost every day. How far is it from your

    但事實上我們幾乎每天都會用時間測量距離。從你家到

  • house to the store? About ten minutes. And how far is it from New York to Boston? About

    商店有多遠?大約十分鐘。從紐約到波士頓呢?

  • four hours. Los Angeles to Sydney? 14 hours.

    大約四小時。洛杉磯到雪梨呢?十四小時。

  • But of course, what we really mean is that the store is ten bike-minutes from your house,

    當然我們真正的意思是,從你家到商店騎腳踏車要十分鐘

  • New York is 4 car-hours from Boston, and Sydney is 14 plane-hours from LA. In fact, using

    紐約到波士頓開車要四小時,洛杉磯到雪梨坐飛機要十四小時

  • time to measure distances is so useful that I only know the distance from LA to Sydney

    用時間去量距離的好處是因為,我只知道從洛杉磯搭飛機到雪梨

  • in plane-hours, not miles or kilometersthough I suppose I could figure it out by

    的時間,而不是兩地距離幾英哩/公里。雖然我應該能算出

  • multiplying 14 plane-hours by the 550-miles-per-hour speed of a plane to get roughly 7500 miles.

    飛機時速550英哩乘以航程14小時,總距離約7500英哩

  • But Sydney is also 5 sailboat-weeks from LA, 7 humpback-whale months from LA, 5 message-in-a-bottle

    你也可以說從洛杉磯到雪梨搭船要五週,大翅鯨要游七個月,瓶中信要漂流五年

  • years from LA, and 0.04 light-seconds from LA. On the other hand, the moon is 18 airplane-days

    光要跑0.04秒。換句話說,地球到月亮坐飛機要18天

  • away, 6 car-months away, and 15 whale-years away. Which means, in fact, that a whale might

    開車要六個月,鯨魚要游十五年。這表示這段旅程

  • swim as far as the distance to the moon over the course of its lifetime .

    將會耗盡鯨魚的一生

  • And if that's not crazy enough, sometimes we even measure times in distance! How long

    若這樣還不夠瘋狂,我們甚至可以用距離測量時間!

  • is a movie? 8,000 feetof film! And MinutePhysics? 30 meters.

    一部電影有多久?8000英呎。那"分鐘物理"節目呢?30公尺!

You may have heard physicists describe the moon as being 1.3 light-seconds away, or the

你或許有聽過物理學家這樣描述:地球距離月球1.3光秒

字幕與單字

A2 初級 中文 雪梨 洛杉磯 飛機 小時 測量 鯨魚

一秒有多遠?How far is a second?

  • 3313 42
    Fu Jung Lai   發佈於 2012 年 12 月 20 日
影片單字

返回舊版