How big is the moon? In the night sky, the moon seems rather small, but in reality, it really isn't. Central Europe would easily fit under it. The surface area of the moon is huge. To give you some perspective, it's as big as the whole European continent, China, the U.S.A., Brazil, and South Africa together.
月亮有多大?在夜空中,月亮看起來似乎頗小的,但實際上,它真的不小。中歐可以輕鬆擺在月球下。月球表面十分遼闊。讓你有點概念,那就和整個歐洲大陸、中國、美國、巴西和南非加起來一樣大。
Weight-wise, the moon is only about 1/81 of the mass of Earth, but how big is it in relation to Earth? Quite big, actually. Our moon is the biggest in the solar system in relation to its planet, and it's the fifth largest moon in the solar system—quite a bit bigger than the dwarf planet Pluto. Now, if the moon is really that huge, how far away is it from us to seem this small in the night sky? Three hundred and seventy kilometers, as far as the ISS maybe? No. At that distance, gravitational forces would rip the moon apart. At 36,000 kilometers, it would be as far away as our most distant satellites.
重量方面,月球僅是地球質量的大約 1/81,不過月球和地球相比有多大呢?其實滿大的。我們的月球在太陽系中是相較於其繞行行星最大的,而且它是太陽系中第五大衛星--比矮行星冥王星大許多。現在,如果月球真的那麼大,那它到底離我們多遠才會在夜空中看起來如此小呢?三百七十公里,可能和國際太空站的距離一樣?不。那樣的距離下,重力會將月球化成碎片。三萬六千公里,那就和我們最遙遠的人造衛星距離一樣。
Let's adjust the distance to reality. Pretty far away, right? A 747 would need 28 straight days to fly to the moon. And even with our current technology, we'd need two full days. And in a car...a lot of time. So, how big is the moon? Well, it kind of depends how you define "big." But seriously though, it's pretty big.
來把那距離調整到實際狀況。滿遠的,對吧?一架 747 飛機會需要整整二十八天來飛到月球。即使有我們現今的科技,我們還是會需要兩天整。而開車的話...需要非常多時間。所以,月球有多大?這個嘛,那有點看你怎麼定義「大」。但講真的,月球滿大的。
Hey, YouTube! We'll try something new this month: Moon May, one video about cool moon stuff each Monday in May. So, see you next week.
嘿,YouTube!我們這個月要嘗試點新玩意:五月月球月,五月的每個星期一會有一部關於月球新鮮事的影片。那麼,下星期見。
- 「實際上」- In Reality
In the night sky, the moon seems rather small, but in reality, it really isn't.
在夜空中,月亮看起來似乎頗小的,但實際上,它真的不小。 - 「就...相較而言」- In Relation To
Weight-wise, the moon is only about 1/81 of the mass of Earth, but how big is it in relation to Earth?
重量方面,月球僅是地球質量的大約 1/81,不過月球和地球相比有多大呢? - 「許多、相當多」- Quite A Bit
...and it's the fifth largest moon in the solar system—quite a bit bigger than the dwarf planet Pluto.
...而且它是太陽系中第五大衛星--比矮行星冥王星大許多。