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  • Our ability to travel faster across the world has consistently been a catalyst for change.

    我們能更快橫跨世界的能力一直是革新的催化劑。

  • This effect can be seen right back to the domestication of the horse.

    這種影響的方式可以追溯到我們對馬的馴化過程中。

  • It allows civilizations to expand and spread information and resources faster than ever.

    它使文明比以往任何時候都能更快地擴展,並和傳播資訊與資源。

  • So where is the next great innovation in commercial travel?

    那麼,下一個偉大的商業旅行界的重大革新會是什麼?

  • The fastest civilian vehicle, the Concorde, had a top speed of Mach 2, but it needed to fly at 18,000 meters.

    世界上最快的民用載具是協和飛機,它的最高速度為 2 馬赫,但需要在 18,000 公尺的高空飛行。

  • If it flew lower, the drag and heat generated from aerodynamic friction would've limited its top speed.

    如果它飛得更低,因為與空氣摩擦所產生的阻力和熱量將會限制它的最高速度。

  • Consider this: the outside temperature at this altitude is -57 degrees Celsius.

    想想看吧:這個海拔高度下的外部溫度為零下 57 攝氏度。

  • Yet the nose of the Concorde could reach 127 °C.

    然而,協和號的機頭可以達到 127 度。

  • Naturally, if we want to move faster, closer to the Earth's surface, we need a way to limit the friction our vehicles experience.

    因此如果我們想要在接近地球面的同時以更快的速度移動,我們自然需要一種方法來減少載具與空氣間的摩擦。

  • This is exactly what the hyperloop aims to do.

    而這正是超迴路列車計畫的目標。

  • So how does it work?

    那麼它的運作原理是什麼呢?

  • The pressure inside the Hyperloop tube would be lowered to a fraction of the normal atmospheric pressure.

    在超迴路列車的真空管道內,空氣壓力會被縮減到與正常大氣壓力比起來相當微小的程度。

  • This minimizes the friction the vehicle will experience due to air.

    這能大幅減少車廂與空氣間的摩擦。

  • But even having a small amount of air in the tube can cause some serious issues.

    但在管子中僅存有少量的空氣可能會造成一些嚴重的問題。

  • Due to something called the Kantrowitz Limit, at lower speeds, there is enough space between the pod and the tube for air to get by.

    由於一種叫做坎托維茲極限的現象,在較低速度的時候,車廂與管壁之間還有足夠的空間可以讓空氣通過。

  • But as the speed increases, this reaches a limit, and the pod begins to push large volumes of air ahead of it.

    但是隨著速度的提升,便會漸漸抵達一個極限,讓車廂必須推動行進方向前面的大量空氣。

  • This limits the speed immensely.

    這會大幅地限制其速度。

  • We can fix this by installing a compressor fan on the front of the pad, that removes the air from the front and redirects it to the back for additional thrust.

    我們能藉由在車廂最前方裝上一個能將前方的空氣移除,並導流到尾部來提供推進力的壓縮風扇來解決這個問題。

  • Or it can be used to levitate the pod on a cushion of air.

    或是也可以用它導流的空氣來製造出氣墊,讓車廂能懸浮起來。

  • To help make this idea a reality, a competition sponsored by SpaceX was created.

    為了實現這個點子,SpcaeX 贊助並發起了一場競賽。

  • One team called rLoop formed on Reddit, and has recently started their crowdfunding campaign to build their prototype.

    一個叫做 rLoop 的團隊在社群平台 Reddit 上集結,並開始進行募資活動來打造他們的原型機。

  • The prototype model has a target speed of 480 km/h.

    這個原型機的目標極速為每小時 480 公里。

  • At this speed, there is no counter its choking, so their design does not need a compressor fan.

    在這個速度下尚不會受到空氣擠壓限制的影響,因此不需要使用壓縮機風扇。

  • Most teams have opted to forgo the compressor fan, as a short test track prohibits high speed runs.

    大部分的團隊也都放棄了壓縮機風扇,因為測試的軌道太短,不足以進行高速測試。

  • rLoop have also moved away from Elon Musk's original idea of levitating the pod using an air cushion.

    rLoop 也放棄了本來伊隆·馬斯克要用氣墊來將車廂抬起來的想法。

  • Their calculation showed that it would be difficult to achieve adequate lift with this method.

    他們在計算過後認為,要用這個方法來把車廂抬升至適當的高度實在太過困難。

  • They have instead opted to use eight Arx Pax magnetic levitation engines.

    於是他們改用了八具由 Arx Pax 公司製造的電磁抬升引擎。

  • They will be competing against 29 other teams, most of whom are backed by university funding.

    他們將會與其他 29 個隊伍競爭,其中大部分背後都有大學出資贊助。

  • They rely on the on the supportive communities like Reddit.

    他們正仰賴著像是 Reddit 這樣的社群支持。

  • If you'd like to support their project, I provided a link in the description.

    如果你想要支持他們的計畫,我會在影片資訊欄中提供連結。

  • With your assistance, their work may help assuring a new era of transportation.

    有了你的幫助,他們的作品或許能為我們帶來運輸業界的新時代。

Our ability to travel faster across the world has consistently been a catalyst for change.

我們能更快橫跨世界的能力一直是革新的催化劑。

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B2 中高級 中文 美國腔 空氣 速度 摩擦 風扇 車輛 推力

旅行的未來——超高速鐵路!有可能成真嗎?(Hyperloop - The Future of Travel?)

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    林宜悉 發佈於 2022 年 01 月 01 日
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