Jocelyn Chinese Tuition

Natural Phenomena 101 | 自然现象

嘿大家,我们又见面啦!你们知道什么是自然现象吗?自然现象就是大自然自发形成的一些状况!像风、雨、雷、电、春、夏、秋、冬,这些都属于自然现象。但是,我个人觉得这些有点普通和常见。今天,就让我来分享一些比较少见的自然现象吧!温馨提示:由于自然现象比较难用文字解释,我提供了许多视频给大家看哦!

Hey everyone, we will meet again! Do you know what natural phenomena are? They are basically what occurs as a result of nature itself! Wind, rain, thunder, lightning, spring, summer, autumn, winter are all counted as natural phenomena. However, personally, I feel that they are a little too normal and basic, so let’s talk about more rare phenomena today. I’ll be sharing a few, so do read on! Disclaimer: As natural phenomena is slightly harder to explain, I will be sharing a few more videos than usual for you guys to watch too!

火烧云 | Morning/Evening Glow (Fire Clouds)

Jocelyn Chinese Tuition Blog Post (Nature)

你们看过像是被火烧的云吗?就是在日出或日落时,天空出现红、橙色的云朵,像极了被火烧的云似的!这个现象被称为火烧云,也别名:彩霞、朝霞、晚霞等。这种现象通常出现在夏天,尤其是在雷雨前后。由于我们在新加坡,全年“都是夏天”。因此,我们偶遇火烧云的机率特别高!大家可以注意看看哦!

那么,火烧云是怎么形成的呢?这里给大家简单说明一下。太阳光是由红、橙、黄、绿、蓝、靛、紫七种色光混合而成的。空气里的分子会分散阳光中不同颜色的光线,而恰好红色和橙色光是最不容易散射的。在日出和日落时,太阳光是斜射的,所以会被更多分子分散光线。由于红、橙的光线是最不容易散射的,它们在空中被减弱的几率最小。当它们的光线照射在空中,便会形成我们所知的火烧云。

你们知道吗?我们其实可以通过火烧云来预判天气哦!

这里分享个俗语给大家:

“傍晚火烧云,来日天气晴”

“早上火烧云,午后一阵雨”

从以上的俗语可以看出,我们其实可以根据火烧云的时间点来预判当天什么时侯会下雨或什么时候会天晴。大家学起来吧,如果有必要带伞的话就一定要记得带!哈哈。

Have you seen skies with clouds that look like they’re on fire? During sunset or sunrise, red and orange clouds appear in the skies, and they look just like clouds on fire! This phenomenon is also known as the Morning or Evening glow and it appears frequently during the summer, especially before and after a thunderstorm! As it just so happens, Singapore is in the “summer” season all year round, which means our chances of seeing this phenomenon is quite high! Do keep a lookout for it!

Here’s how the morning/evening glow is formed! Sun rays are formed by 7 colour rays, namely: red, orange, yellow, green, blue, indigo, violet. Molecules in the air scatter these rays, with red and orange rays being the hardest to be scattered. At sunrise/sunset,  sun rays are slanted, which causes them to be scattered by more molecules. Since the red and orange rays are hardest to be scattered, they would be reduced the least in the air. Then, when they are shone in the skies, they form what we know as the morning/evening glow!

Do you know that we can actually use this to predict the weather?

There’s a saying in chinese, which roughly translates to: 

“With the evening glow, comes clear skies tomorrow”

“With the morning glow, comes thunderstorm in the afternoon”

As such, we can actually determine the weather based on the timing of these glows. It’s a useful skill to pick up so that you know when to bring an umbrella!

日蚀/日食 | Solar Eclipse

Jocelyn Chinese Tuition Blog Post (Nature)

相信大家在读这篇文章的时候,应该都有看过一两次的日蚀吧!顾名思义,日蚀就是太阳被“吃掉”的一种天文现象。这样的现象通常会在月球运行至太阳与地球之间时出现。在这个时候,太阳就像被“吃掉”一样。这会导致下午的天空瞬间变成像夜晚或类似傍晚一样的天空,暗暗的。

日蚀有四种,分别为:日全食、日环食、日偏食和全环食。在这四种日蚀当中,比较罕见的便是全环食。当然,日蚀,整体而言,都是比较罕见的。有许多旅客及天文学家为了日蚀会跑到世界各地,只为了看到那一眼。可见日蚀是多么的有趣了吧!

在这里,我提供大家一个视频,让大家通过这个视频更深层地认识这四种日蚀。

四种日蚀:

While you are reading this article, I believe many of you have at least one or two experiences with Solar Eclipses, seeing how it has happened in Singapore! A solar eclipse is basically a phenomenon where the sun gets “eaten up”. It happens when the moon ends up in the middle of the sun and earth, making it as if the sun got “eaten up” by the moon, causing the afternoon skies to turn into night skies in a blink of an eye.

There are four types of eclipses, mainly: total eclipse, annular eclipse, partial eclipse, and hybrid eclipse (occasionally also known as total eclipse). Amongst these four, the rarer one would have to be the total eclipse. Of course, solar eclipses in general are indeed quite rare. Many tourists and astronomers often travel around the globe just to get a glimpse of it. You can probably tell by this, that it is indeed very interesting, right? 

Let me share with you one video, which explains the four types of eclipses! Enjoy!! 

Solar Eclipse 101: 

北极光 | Northern Lights (Aurora Borealis)

Jocelyn Chinese Tuition Blog Post (Nature)

北极光的美无法用字来形容。只有在自己亲身体会后,才能够真正地感受到北极光的美。提到北极光,很多人都会想起去冰岛或挪威看北极光。那么,北极光到底是什么?北极光通常在高纬地带的漆黑夜晚,天空中出现的一条光带。还没等到这一条光带消逝进夜晚,另一条光带又会出现,把整片天空点亮。这样的现象便是北极光。

由于北极光背后的的科学道理比较复杂,我会在下面留下视频的链接。通过观看视频,大家可以更加了解北极光是怎么形成的!当然,有北极光必然也会有南极光,而两者统称为极光。只是大家比较常提起的是北极光,我也因此把重点放在北极光上!值得一提,极光出现的时间通常为八月末至四月哦!

The beauty of the northern lights can’t really be described with words. Only when you see them for yourselves, then will you truly understand the beauty. Many people love to visit Iceland or Norway just for a glimpse of these northern lights. How are they formed? Well, they often appear at high latitude areas during the night in the form of light rays. Before one disappears, another appears and it stacks, lightening the sky up. This is a form of electrical phenomenon. 

As the science behind the northern lights are slightly more complicated, I will just leave a link to a video explaining the science behind it. Hopefully, through it you guys get to learn something too!

Naturally, not only are there northern lights, but southern lights as well. Together, they are known as polar lights (aurora polaris). The time period that most people would see them is normally somewhere between the end of August to April. Hence, if you’re looking to go overseas and see it, it’s the time period that you can try out!

北极光怎么形成:

北极光拍摄:

蓝眼泪 | Blue Tears

Jocelyn Chinese Tuition Blog Post (Nature)

“蓝色的眼泪?” “眼泪不是无色的吗?”,看到标题的你们此时此刻应该会发出这些疑问吧!其实,蓝眼泪并非真正的眼泪。它是一种由生物导致的自然现象,指的是海水出现蓝光的现象。我们常常把海水与蓝色挂边,但是我们都知道,海水对大多的我们来说都是无色的。唯独当这种现象出现时,我们才能真正看到海水中的蓝色。

不同地区的蓝眼泪都来至于不同的生物,但多数都是由生物发光所造成。其中一种说法是由双鞭毛虫门/双鞭毛藻导致的。这类的藻会导致夜晚的海水发光,并造出蓝色的光。另一种比较常见的说法是由一种介形虫,希氏弯喉海萤造成的。这种荧光生物在受到海浪拍打或类似的刺激时,会产生浅蓝色的光。蓝眼泪一般会在六、七月份出现,地点通常沿着海岸,也被科学家称之为“冷光”。有趣的是,虽然现在不是六、七月,但是在二月中厦门就出现了这个现象。它真的很有趣,值得大家一看!

更新于3月25日:对了,新加坡最近出现了此现象,大家可以点击以下链接去读!

https://www.zaobao.com.sg/realtime/singapore/story20220323-1255166

When you see the heading of this section, you may be thinking: “Blue coloured tears?” “Aren’t tears colourless?”. Well, the tears mentioned here aren’t actually real tears! It’s just a name for a nighttime phenomenon caused by some special marine creatures, where the blue lights are emitted in the seas at night. We often link the colour blue with the seas, but we all know that most seas, like any other water, are colourless. Only when such a phenomenon appears, then do we really see blue colour in the seas.

Blue tears in different areas are caused by different marine creatures, but most of them are caused by bioluminescent creatures. One such creature would be the bioluminescent dinoflagellates, a type of algae which causes the waters to emit a blue-green light at night without the need for any other factors. Another type of creature is known as vargula hilgendorfii, or simply sea-firefly. They float on the surface of seas, and when the waves hit or when provoked by similar methods, they emit a blue light. Normally appearing in June and July, they can be found near the shores. Interestingly however, although it’s nowhere near June or July, recently in mid-february, this phenomenon was reported to be seen somewhere in Xiamen. It’s really beautiful and amazing, so if you get the chance, do check it out!

Update on 25th March: This phenomenon actually appeared in Singapore recently, click the link below to find out more!

https://www.straitstimes.com/singapore/environment/blue-glow-in-waters-off-eastern-spore-shoreline-will-last-for-2-to-4-more-days-marine-biologist

赤潮 | Red Tide

Jocelyn Chinese Tuition Blog Post (Nature)

与蓝眼泪相似,这是一种沿着海边的海水发出红色的一种水化现象。但是,与蓝眼泪不同的是它是一种对于生态环境有害的现象。赤潮是由海水中某些微小海水生物爆发性增殖或高度聚集而引起的。对于周边的鱼、贝壳等而言,这些海水生物含有毒素,可害死这些生物。此外,赤潮也有可能导致周围的空气变得很难呼吸。

在佛罗里达洲,赤潮是几乎每个夏天都会出现的自然现象。不仅如此,它也在许多美洲的地方频繁出现,引起相关部门的注意和担心。这种现象不仅仅伤害了海洋生物,更对人类有害。如果是我们,想必也是会选择远离它们吧!要是你们“有幸”看到这一幕,可以在远距离把它拍下,但千万要切记不要太靠近哦!

Simliar to Blue Tears, this is a type of water phenomenon that appears along the shores, which causes the sea to look as if it was red as a result of discolouration. However, the difference is that this type of phenomenon is harmful to the living environment. It is caused by microorganisms and algae that grow out of control and as a result become colonies of algae, otherwise known as the harmful algae bloom. To the fishes and shellfish around it, these creatures are poisonous, and cause them to die. Additionally, it can also cause the surrounding air to become hard to breathe.

In Florida, red tides occur almost every summer. However, not only in Florida, but in many American states, these phenomena occur frequently and have been on the rise, causing a national concern. As mentioned earlier, they harm not only marine life, but humans as well. If it was us, I’m sure we would also choose to stay away from them! If you are ever so “lucky” enough to see this phenomenon, remember to stay a distance away if you want to snap a picture!

分享了那么多,相信大家也打开眼界了吧!是的,连我自己在网上搜索这些自然现象时也学到了不少。大家可以在评论区提一下你们所遇过的自然现象哦,我一定会看!另外,提醒一下大家,自然现象虽美,但它再美,也会随着地球的死亡消失。因此,大家一定要尽力保护地球哦。还没读过我之前关于全球暖化的文章记得去读! 

好啦,下次见!拜拜!

After sharing so much, I’m sure many of you would have learnt something. Yes, even when I myself was researching this, I learnt so many new and interesting things. Please feel free to leave a comment of what type of phenomenon you may have seen before! Also, just to add on, natural phenomena may be beautiful, but it’ll also disappear should the earth die off. Hence, we must all do our part to protect the earth! If you haven’t already read my previous article on global warming, do check it out!

Click HERE: Global Warming

See you guys next time! Bye bye!

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