Name: 你以為只是風景？飛機飛在雲上的真正理由曝光！ (Why Do Planes Fly Above the Clouds? [ID0616])
Uploaded: 2025-12-29T21:01:10.000Z
Duration: 8 min 20 s

情態副詞

If you've ever looked out an airplane window and wondered why the ground slowly disappears beneath a thick blanket of white clouds, you're not alone.

如果你曾經望向飛機窗外，想知道為什麼地面會慢慢消失在厚厚的白雲之下，你並不孤單。

One minute you're watching cities shrink into tiny grids, and

一分鐘前，你還在看城市縮小成微小的方格，

the next, everything below turns into what looks like an endless ocean of cotton.

下一分鐘，下面的一切看起來就像是一片無盡的棉花海。

It almost feels intentional, like planes are trying to escape Earth for a while.

這幾乎像是刻意安排的，好像飛機暫時想逃離地球一樣。

But that raises a surprisingly simple question:

但這也提出了一個出乎意料地簡單的問題：

why do planes actually fly above the clouds?

飛機為什麼實際上要飛在雲層之上呢？

Or is there something more practical happening at 35,000ft?

還是在35,000英尺高空有更實際的考量呢？

As it turns out, those fluffy clouds are only part of the story.

事實上，那些蓬鬆的雲只是故事的一部分。

Today, let's uncover the fascinating reasons why aircraft choose to soar above the clouds instead of flying through them,

今天，我們就來揭開飛機為什麼選擇飛在雲層之上，而不是穿越雲層的迷人原因，

就在《簡單事物的歷史》頻道。

The biggest reason planes fly high above the clouds comes down to one invisible thing air density.

飛機飛得比雲層高的最大原因，可以歸結為一個看不見的因素──空氣密度。

The higher you go in the atmosphere, the thinner the air becomes.

你飛得越高，大氣中的空氣就越稀薄。

While that might sound like a disadvantage, it's actually a huge benefit for airplanes.

雖然這聽起來像是一個劣勢，但對飛機來說，實際上是巨大的好處。

Thinner air creates less resistance, meaning planes don't have to fight as hard to move forward.

空氣稀薄意味著阻力更小，也就是說飛機不需要費力去推進。

Less drag allows aircraft to fly faster while burning less fuel,

阻力減少讓飛機可以飛得更快，同時燃料消耗更少，

which saves money for airlines and reduces overall strain on the engines.

這不僅幫航空公司省錢，也減少了引擎的整體負擔。

At lower altitudes, where clouds usually form,

the air is thicker and more chaotic, forcing planes to work harder just to maintain speed and stability.

空氣較厚且較混亂，迫使飛機必須更努力才能維持速度和穩定性。

Flying higher is simply more efficient, smoother, and smarter from an engineering standpoint.

從工程角度看，飛得更高效率更高，更平穩，也更聰明。

Clouds may look soft and peaceful from a distance, but

雲層從遠處看可能柔軟又平靜，但

they're often a visual warning sign of unstable air.

它們往往是空氣不穩定的視覺警告。

Most clouds form because warm, moist air is rising and colliding with cooler air,

大多數雲是因為溫暖潮濕的空氣上升，與較冷的空氣碰撞而形成，

creating constant motion inside the cloud itself.

這種運動就是造成氣流顛簸的原因。

By flying above the clouds, planes avoid most of the vertical air currents that make flights bumpy.

透過飛在雲層之上，飛機可以避開大部分讓飛行顛簸的垂直氣流。

While turbulence can still happen at high altitudes,

it's generally weaker and more predictable than the kind found inside cloud layers.

但通常比雲層內的氣流弱且更可預測。

飛行員不是為了追求戲劇效果而追雲。

They're actively avoiding the rough air hidden inside them to give passengers a smoother ride.

他們是主動避開雲層中隱藏的亂流，以提供乘客更平穩的飛行體驗。

Another major reason planes climb above the clouds is to escape weather altogether.

另一個飛機爬升至雲層之上的主要原因是完全避開天氣。

Rain, snow, hail, thunderstorms, and icing conditions all live where clouds form,

雨、雪、冰雹、雷暴和結冰環境都出現在雲層形成的地方，

typically in the lower parts of the atmosphere.

Flying above them allows aircraft to stay clear of dangerous weather systems that could damage the plane or reduce visibility.

飛到雲層之上讓飛機遠離可能損壞飛機或降低能見度的危險天氣系統。

Ice buildup on wings, for example, is far less likely at cruising altitude, where the air is colder but drier.

例如，機翼上積冰在巡航高度的可能性就小得多，因為那裡的空氣雖然更冷，但更乾燥。

Thunderstorms, which can stretch vertically 4km, are especially dangerous, and

雷暴可垂直延伸約4公里，尤其危險，

pilots carefully navigate around them or above smaller cloud layers whenever possible.

飛行員會盡可能繞過它們或飛到較小雲層之上。

In many ways, cruising above the clouds is like taking a highway overpass,

在很多方面，飛在雲層之上就像走高架道路，

instead of driving through a flooded street.

High altitude air isn't just thinner, it's colder.

高空的空氣不只是稀薄，還更冷。

And surprisingly, jet engines perform better in colder conditions.

令人驚訝的是，噴射引擎在寒冷條件下性能更好。

Cold air is denser than warm air at the same pressure, which allows engines to generate thrust more efficiently.

在相同壓力下，冷空氣比暖空氣密度高，使引擎更有效地產生推力。

This improved performance helps planes maintain speed with less fuel consumption.

這種性能提升幫助飛機用更少燃料維持速度。

That's why most commercial jets cruise at altitudes between 9,000 and 12,000 meters,

這也是為什麼大部分商用噴射機巡航高度在9,000到12,000米之間，

where temperatures can drop to negative 50 degrees Celsius.

那裡溫度可下降至零下50度攝氏。

While passengers stay warm inside the pressurized cabin,

the engines benefit from the cold, clean environment outside.

而引擎則受益於外部寒冷乾淨的環境。

It's a carefully balanced system designed to maximize performance without sacrificing safety or comfort.

這是一個精心平衡的系統，旨在最大化性能，同時不犧牲安全與舒適。

Flying above the clouds also helps keep air travel organized.

飛在雲層之上還有助於保持空中交通有序。

At cruising altitude, planes follow structured flight levels, essentially invisible highways in the sky.

在巡航高度，飛機遵循結構化的飛行層，基本上是天空中的無形高速公路。

Different altitudes are assigned based on direction and distance to prevent collisions and manage traffic efficiently.

不同高度依方向和距離分配，以防止碰撞並有效管理交通。

Staying high above weather and clouds allows pilots to maintain these steady levels without constant altitude changes.

遠離天氣和雲層讓飛行員能維持穩定高度，而不必頻繁改變。

If planes stayed lower, they'd be forced to climb, descend, and

如果飛機停留在低空，它們會被迫頻繁爬升、下降，

reroute far more often, creating congestion and increasing the risk of delays.

並重新規劃航線，增加擁堵與延誤風險。

Flying above the clouds keeps the system predictable,

飛在雲層之上讓系統更可預測，

orderly and surprisingly calm for something moving at nearly 900 kilometers per hour while safety and efficiency come first.

有序，並且對於時速近900公里的飛行而言，出乎意料地平穩，同時以安全與效率為首要考量。

less noise from wind resistance, and a more consistent cabin experience.

風阻噪音減少，艙內體驗更一致。

Smooth air reduces stress on the aircraft structure and makes long flights feel less exhausting.

平穩的空氣減輕了機體結構壓力，讓長途飛行不那麼疲勞。

That peaceful moment when the plane breaks through the cloud layer and suddenly everything becomes bright and calm isn't accidental.

當飛機衝破雲層，眼前突然變得明亮平靜的那一刻，並非偶然。

It's a sign that the aircraft has reached its ideal cruising environment.

這表示飛機已到達理想的巡航環境。

Even the famous cloud top views are just a bonus side effect of flying where conditions are most stable.

即便著名的雲頂景觀，也只是飛在最穩定環境中的附加好處。

Not every flight climbs high enough to stay above the clouds.

並非每次飛行都爬升到雲層之上。

Short routes and smaller aircraft often fly lower where going higher wouldn't make sense.

短程航班和小型飛機通常飛得較低，高飛並不划算。

In those moments, pilots depend almost entirely on instruments guided by radar and air traffic control,

在這些情況下，飛行員幾乎完全依賴雷達與空中交通管制的儀器，

It's a quiet reminder that even when the sky disappears,

這也是一個安靜的提醒，即使天空消失，

modern aviation is designed to keep flight steady, controlled and safe.

現代航空仍被設計成保持飛行穩定、可控且安全。

So planes don't fly above the clouds because they're avoiding the earth or chasing scenic views.

所以飛機飛在雲層之上不是為了逃離地球或追求美景。

They do it because higher altitudes offer thinner air, smoother rides, safer weather conditions,

它們這麼做是因為高空提供稀薄空氣、平穩飛行、更安全的天氣條件，

better engine performance, and a more organized sky.

更佳的引擎性能，以及更有序的天空。

What looks like a simple choice from your window seat is actually the result of decades of aviation science and careful planning.

從你窗外看似簡單的選擇，實際上是數十年航空科學與細緻規劃的成果。

The next time you're gazing down at that endless sea of white,

下次你俯瞰那片無盡的白色海洋時，

you'll know that above the clouds isn't just beautiful.

你會知道，飛在雲層之上不只是美麗。

It's exactly where planes are meant to be.

If you have suggestions for our next video.

如果你對我們下一支影片有建議，

Feel free to share them in the comments below.

We'll be sure to give you an acknowledgment for your contribution.

If you enjoyed this video, please check out our other bingeable channels.

如果你喜歡這支影片，也可以看看我們其他值得連續觀看的頻道。

Thank you for joining us on this journey through the history of simple things.

感謝你與我們一同探索「簡單事物的歷史」。

Don't forget to, like, subscribe and stay tuned for more stories woven through the smallest details.

別忘了按讚、訂閱，並鎖定頻道，持續收看更多從微小細節中編織的故事。