gravitational force
US
・UK
B1 中級
n. (c./u.)名詞 (可數/不可數)萬有引力
The gravitational force between the Earth and the Moon keeps the Moon in orbit.
影片字幕
史蒂芬霍金關於黑洞和暗物質的理論被推翻了！ (Stephen Hawking theory about black holes and dark matter is RULED OUT)
- But observations show that most stars have a similar orbit speed around their galactic disk, however close or far out they are, which implies that there is some gravitational force at work that we can't see and so far don't understand.
萬有引力定律意味著，我們應該看到位於星系外圍的恆星圍繞星系旋轉的速度比靠近中心的恆星慢，後者應該旋轉得更快，就像行星一樣。
- But observations show that most stars have a similar orbit speed around their galactic disk, however close or far out they are, which implies that there is some gravitational force at work that we can't see and so far don't understand.
但觀測結果表明，無論恆星距離銀河系多近或多遠，大多數恆星圍繞銀河系盤的軌道速度都差不多，這意味著有某種我們看不見、至今也不明白的引力在起作用。
宇宙尺度 - 我們「微小」的宇宙數字解析 (上)！ (Scale of the universe - Our TINY UNIVERSE in NUMBERS (Part 1))
- Stephen Hawking explained it like this, two pieces of matter that are close to each other have less positive energy than the same two pieces a long way apart, because you have to expend energy to separate them against the gravitational force that is pulling them together.
斯蒂芬-霍金是這樣解釋的：相距很近的兩塊物質的正能量比相距很遠的兩塊物質的正能量要少，因為你必須消耗能量把它們分開，以對抗把它們拉在一起的引力。
- Stephen Hawking explained it like this: two pieces of matter that are close to each other have less positive energy than the same two pieces a long way apart, because you have to expend energy to separate them against the gravitational force that is pulling them together.
既然將兩塊物質分開需要正能量，那麼萬有引力一定是利用負能量將它們拉到一起的。
月球是行星的驚人論點！ (An Argument The Moon is a PLANET!)
- In fact, as I've explored in a previous video, the gravitational force from the Sun on the Moon is twice as much as the force from the Earth,
我們先從第一個標準開始。
- In fact, as I've explored in a previous video, the gravitational force from the sun on the Moon is twice as much as the force from the Earth.
事實上，就像我在之前的影片中探討過的，太陽對月球的重力是地球對月球重力的兩倍。
太陽系為何能存在？☀️ (Why the solar system can exist)
- This balance is very special indeed—it's highly dependent on the strength of the gravitational force and the number of dimensions we live in,
太陽拉力也會使得地球運行速度相對增加一些些。所以，就算愈靠近太陽，所受引力愈強。
沒有愛因斯坦，廣義相對論仍會被發現？ (Why general relativity would’ve been discovered without Einstein | Sean Carroll)
- Newton posited that if you have two objects with two different masses, they have a gravitational force that will pull them together that diminishes as 1 over the square of the distance between them.
那是對物理學框架的一次徹底重塑。
- They have a gravitational force that will pull them together that diminishes as one over the square of the distance between them.
它們之間會有一種引力將它們拉在一起，這種引力會隨著它們之間距離的平方而減弱。
