escape velocity
US
・UK
B1 中級
n.名詞脫離速度
The escape velocity of Earth is about 11.2 kilometers per second.
影片字幕
【科學補給站】地球土星換位置會如何？人的死期早就決定好了？ (Is the Day You Die Already Determined? - Dear Blocko #32)
- The heat would excite the molecules and could make them reach escape velocity, where they could break free from the planet's gravity.
其次，如果它向太陽靠近，就可能會失去其大氣層，而大氣層是保持溫暖和隔絕輻射的必要條件。
- The heat would excite the molecules and could make them reach escape velocity, where they could break free from the planet's gravity.
熱量會激發分子，可以使它們達到脫離速度，就會掙脫星球的引力。
黑洞裡發生了超詭異的事情？(feat. Brian Cox) (Something Weird Happens Inside A Black Hole (feat. Brian Cox))
- So immense that if you wanted to escape, the speed you'd have to travel to escape its gravitational pull, it's called the escape velocity, would exceed the speed of light.
是以，如果你想逃離，你必須以超過光速的速度才能擺脫它的引力，這就是所謂的逃逸速度。
- So immense that if you wanted to escape— The speed you'd have to travel to escape its gravitational pull—it's called the escape velocity—would exceed the speed of light.
它們只是理論上的。
火箭發射需要特殊場地？帶你一探究竟！ (Rockets Need Special Places to Launch, Here’s Where)
- We call this speed the escape velocity.
我們稱這個速度為 escape velocity。
- We call this speed the escape velocity.
我們稱這個速度為 escape velocity。
歷史上最高建築物 (How High Can We Build?)
- In fact, if the cable is more than 50,000 kilometers long, its far end will be traveling near escape velocity, and simply walking outside could take you to the Moon.
事實上，如果纜繩長度超過五萬公里，其遠端將以接近逃逸速度移動，而單純走到外面就可能帶你去月球。
- near escape velocity, and simply walking outside could take you to the Moon. But, why build
宇宙間究竟有沒有另一個「地球」？ (Is There A Better Planet Out There For Us?)
- The escape velocity on Kepler 20b is more than double compared to Earth's, which means either rockets would need more fuel to reach their destinations...
在柯卜勒 20b 上的離開速度需要是地球上的兩倍，意味著需要有更多的燃油來到達目的地…
如果地球上的重力突然減半？(What If Earth Suddenly Had Half Gravity?)
- One of those things would be escape velocity.
其中一件事就是逃逸速度。
- otherwise known as escape velocity, would be less.
也就是所謂的逃逸速度，就會變小。
