英語世界文摘:This Is Why Aeroplane Windows Are Rounded

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This Is Why Aeroplane Windows Are Rounded

飛機(jī)舷窗為何是圓形的

By Mollie Goodfellow

文/莫麗·古德費(fèi)勒

While not everyone will have pondered the subject while staring out of the window during a flight, the question as to why aeroplanes have circular windows rather than square ones is interesting.

在飛行過程中，許多人都喜歡眺望窗外，欣賞云海。但并非每個(gè)人都會(huì)思索這樣一個(gè)問題，那就是，為什么舷窗是圓形的而不是方形的。這個(gè)問題很有趣。

Over the years, aerospace engineering has made huge leaps in aeroplane technology, meaning planes can carry more passengers and go faster. The planes have also changed shape to increase safety – including the windows.

多年來，航空航天工程在飛機(jī)技術(shù)上已經(jīng)取得了長(zhǎng)足的進(jìn)展，這意味著飛機(jī)不僅在搭載人數(shù)上有所增加，而且在飛行速度上也有所提高。同時(shí)，為了提高飛機(jī)的安全性，飛機(jī)在外形上也做出了相應(yīng)的改變。舷窗，便是變化之一。

In the 1950s, when jetliners were starting to become mainstream, the De Havilland Comet[1] came into fashion. With a pressurised cabin, it was able to go higher and faster than other aircraft.

20世紀(jì)50年代，噴氣式客機(jī)開始成為主流，德·哈維蘭“彗星”客機(jī)便是當(dāng)時(shí)的主要機(jī)型。增壓座艙的誕生使得噴氣式飛機(jī)可以比其他飛機(jī)飛得更高更快。

[1] 德·哈維蘭“彗星”客機(jī)，由英國哈維蘭公司研發(fā)，于1949年出廠的噴氣民航客機(jī)，是世界上第一種以噴氣發(fā)動(dòng)機(jī)為動(dòng)力的民航客機(jī)。

However, the plane had square windows and in 1953 two planes fell apart in the air, killing 56 people in total.

然而，該機(jī)型舷窗是方形的，1953年，該機(jī)型兩架客機(jī)在空中解體墜毀，共造成56人死亡。

The reason for the crashes? The windows.

悲劇發(fā)生的原因是什么？答案是：舷窗。

Where there’s a corner, there’s a weak spot. Windows, having four corners, have four potential weak spots, making them likely to crash under stress – such as air pressure.

哪里有拐角，哪里就有弱點(diǎn)。方形舷窗有四個(gè)角，就有著四個(gè)潛在的薄弱點(diǎn)，使它們很可能在大氣壓等壓力作用下破裂。

By curving the window, the stress that would eventually crack the window corner is distributed and the likelihood of it breaking is reduced.

因此，讓窗緣線條彎曲，來分散窗口四角的壓力，從而大大降低了窗戶破碎的可能性。

（譯者單位：天津外國語大學(xué)濱海外事學(xué)院）