1月31日晚从撼，被媒體稱為“152年一遇”“錯(cuò)過就等下輩子”的奇觀——“超級(jí)藍(lán)血月”()上演州弟。但是钧栖，什么是“超級(jí)藍(lán)血月”？超級(jí)月亮（supermoon）：月亮處于其軌道的近地點(diǎn)之時(shí)婆翔，顯得比平時(shí)要大一些——每年平均4-6次拯杠；藍(lán)月：一個(gè)月出現(xiàn)的第二次滿月——平均兩三年一次；血月：即月全食啃奴，地球擋住了月亮之后潭陪，太陽光折射到月球表面，形成暗紅色的月亮——血月確實(shí)是比較少見最蕾。一句話總結(jié)依溯，超級(jí)藍(lán)血月就是"一個(gè)月內(nèi)第二次滿月時(shí)，出現(xiàn)了大一點(diǎn)的月全食”瘟则。其實(shí)黎炉，這三種現(xiàn)象分開來看并不稀奇，但如果三種現(xiàn)象一起同時(shí)出現(xiàn)醋拧，就是百年難遇的奇觀了慷嗜。

注：本節(jié)講解后半段，Mat 老師分享了6個(gè)月亮小常識(shí)丹壕。請(qǐng)小伙伴們認(rèn)真學(xué)起來庆械，長知識(shí)必備哦~

本篇課程首發(fā)于2018年2月5日

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無用系數(shù)：

DON'T CALL IT A BLOOD MOON. OR SUPERMOON. OR BLUE MOON

LAST WEDNESDAY, HUMANITY was treated to a celestial feast for the eyes: A supermoon (meaning it was relatively close to Earth), but also simultaneously a blood moon (it was orange or red), but also simultaneously a blue moon (the second full moon in one calendar month), it passed in the shadow of Earth, for a total lunar eclipse. It looked awesome.

But supermoon? Blue moon? Blood moon? Hang on, let's think about these names.

So we saw a "blood" moon. But … hold on. This term has been made popular by religious zealots that keep proposing that it's the end of the world. The term has been around for centuries, even the Bible says something about a blood moon. Many things can make the moon look red: forest fires, for instance, or a volcanic eruption. It's never blood though, and so far it's never signaled the end of the world.

The next term, the supermoon, is kind of problematic as well. A supermoon is, I'm sorry to say, really not all that super. The supermoon that we saw on January 31 was the second "supermoon" of the year and it'll be followed by 12 more this year.

Now, the third: the blue moon, which means there's two full moons in a month, but this really depends on where you happen to be on Planet Earth, because one person's 'blue moon' is another person's 'not a blue moon'. In one time zone you might get two full moons in a month, in another time zone that same month might only get one full moon. The moon didn't invent the calendar—humans did.

So, what happened last Wednesday? A total lunar eclipse, it was orange or red or even brownish. Call it that, a beautifully breathtaking total lunar eclipse.

It was visually gorgeous, I took pictures of it. It almost certainly wasn't the end of the world.

▍生詞好句

the end of the world: if we say "sth. is not the end of the world", then it might feel like a bad situation at this moment, but it will not cause very serious problems. So we use "it's not the end of the world" for saying that sth. is maybe not as serious as you think it is to tell someone that a problem is not as bad as it seems.

I'm sorry to say: it means the information I'm giving you might be a little bit disappointing or negative.

this depends on where you happen to do sth.: (舉例講解) Everyone says London is a beautiful city but this really depends on where you happen to live in London. (Meaning some parts are nice, some parts are not so nice.)

one man's X is another man's Y: There's a famous English expression, "One man's meat is another man's poison." The expression was first written by the Roman poet Lucretius, and the original meaning is a situation where two people disagree over something. So we use "one man's meat is another man's poison" to emphasise that different people like different things.

▍6 fun moon facts

1. The moon seems larger when it's nearer the horizon.

2. The moon is moving away from the Earth at the rate of 4 centimeters a year.

3. The full moon makes people go crazy and do strange things. Except, they don't.

4. The moon doesn't orbit / spin around the Earth; it travels with the Earth and revolves around the sun.

5. There are moon trees on Earth.

6. The moon could possibly solve Earth's energy problems.