哈雷知道,天文单位是所有天文学测量中最基本的。
Halley was aware that the AU was one of the most fundamental of all astronomical measurements.
我们还是可能放弃光学天文学,选择无线电天文学。
We might as well give up on optical astronomy and go with radio astronomy.
在天文学中,在光学天文学中,我们不能测量周期或者可见光的频率。
In astronomy, in optical astronomy, we cannot measure the period or the frequency of optical light.
She also loves astronomy, which is incidentally an interest of mine too, but you won't hear about it again in this course.
她还喜欢天文学,巧合的是,这也是我的爱好之一,但在这节课上我也不会提及
And even in astrophysics, when you talk about stars, black holes, etcetera you're moving energy around.
即使在天文学中,当你谈论恒星,黑洞等时,你能量的转移。
That's not a silly thing to say about the astronomy case.
谈论这个天文学例子,并不是什么傻事
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