評論
打印
That's a beauty. Is that a meteorite? -Yeah, it's a lovely one.
真是太美了，這是隕石嗎？-是的，很漂亮的一個
This is incredible that it's something from outer space. That's amazing.
這是來自外太空的，太不可思議了
What is amazing is that it actually makes it to the surface at all.
不可思議的是它能夠抵達地球表面
Something that size might have been part of an object
這么大的隕石在大氣層以外的時候
the size of a washing machine or a small car at the top of the atmosphere,
可能有洗衣機 或者小汽車那么大
and as it punches into the atmosphere at high speed,
但是它高速進入大氣層
the surface gets melted and stripped off and a new surface exposed and melted and stripped off,
表面融化掉，剝離 新的表面暴露出來融化掉，再次剝離
until you whittle down to something about that big.
直到被剝離成這么大的一塊
But it's heavy, so that small car is a small car of rock weighing tons?
但是很重，那輛小汽車有幾噸重？
Yes. -So, thin air does this to solid rock?
是的-所以這都是稀薄空氣干的？
Yes. -That's remarkable.-是的-太了不起了
When meteors hit the atmosphere, they compress the air in front of them which generates intense heat.
隕石碰到大氣層會把前面的空氣壓縮 這會引起高熱量
Layer upon layer gets stripped away until most are completely burnt up.
一層層地被剝離開直到大部分都燃燒掉了
