Every Lagrange point in our solar system has its quirks.
太阳系中的每个拉格朗日点都有其特点。
单词 | Lagrange Points |
释义 |
Lagrange Points
原声例句
双语版 TED-Ed 演讲精选 Every Lagrange point in our solar system has its quirks. 太阳系中的每个拉格朗日点都有其特点。 生活大爆炸 第6季 I'm looking for Trojan asteroids at Earth's LFive Lagrange point. 在地球的L5拉格朗日点寻找特洛伊小行星。 双语版 TED-Ed 演讲精选 Consider the five Lagrange points generated by the Sun and the Earth. 以太阳和地球产生的五个拉格朗日点为例。 双语版 TED-Ed 演讲精选 In every set of five, the first three Lagrange points are slightly unstable. 在每五个点中,前三个拉格朗日点略微不稳定。 双语版 TED-Ed 演讲精选 However, Lagrange points are places where all these forces balance out. 但是,拉格朗日点是所有这些力平衡的地方。 双语版 TED-Ed 演讲精选 Pairs of massive bodies in our solar system generate sets of five Lagrange points. 太阳系中每对大型天体会产生五个拉格朗日点。 BBC 听力 2022年1月合集 The James Webb space telescope has arrived at its final destination, a region of space called the second Lagrange point. 詹姆斯·韦伯太空望远镜已经抵达它的最终目的地,一个被称为第二个拉格朗日点的空间区域。 双语版 TED-Ed 演讲精选 Named after the 18th century mathematician who deduced their positions, Lagrange points are rare places of equilibrium in our constantly shifting universe. 拉格朗日点是以推导出其位置的 18 世纪数学家拉格朗日的名字命名的,拉格朗日点是我们不断变化的宇宙中罕见的平衡点。 双语版 TED-Ed 演讲精选 Essentially, Lagrange points are celestial parking spaces — once an object is there, it requires little to no energy to stay put. 从本质上讲,拉格朗日点像天体停车位——一旦物体在那里,它几乎不需要任何能量便可留在原地。 双语版 TED-Ed 演讲精选 Adding these up, there are over 1,000 Lagrange points in our solar system — but only a few are useful for human purposes. 加起来我们太阳系中的拉格朗日点超过 1,000 个,但只有少数对人类有用。 双语版 TED-Ed 演讲精选 Each of these dots is a Lagrange point, and as far as human space exploration is concerned, they may be the most important places in our solar system. 这其中每一个点都是拉格朗日点,而对人类太空探索而言,它们可能是我们太阳系中最重要的地点。 双语版 TED-Ed 演讲精选 So whenever humans want to keep an object in one place for a long time without using tons of fuel, it needs to be orbiting a Lagrange point. 因此,当人类希望不消耗大量燃料将物体长时间保留在一个地方时,它得绕着拉格朗日点运行。 精选英语短文 Hours later, it was expected to burn its engines to set it on course toward its ultimate destination, a position in space known as the second Lagrange point, or L2 (see 'Webb's journey'). 几小时后,预计它会燃烧引擎, 使其驶向最终目的地,即太空中被称为第二拉格朗日点或 L2 的位置(参见“韦伯的旅程” )。 NASA微课堂 Lagrange Points, named after the Italian astronomer who first proposed them, are places in our solar system where the gravitational pull of the planet and the Sun, and the motion of the orbit combine to create an equilibrium. 拉格朗日点以首先提出拉格朗日点的意大利天文学家的名字命名,是我们太阳系中行星和太阳的引力以及轨道运动共同创造平衡的地方。
中文百科
拉格朗日点 Lagrangian point(重定向自Lagrange Points)
![]() ![]() ![]() ![]() 拉格朗日点(Lagrangian point)又称平动点(libration points)在天体力学中是限制性三体问题的五个特解。就平面圆型三体问题,1767年数学家欧拉根据旋转的二体引力场推算出其中三个点(特解)为L1、L2、L3,1772年数学家拉格朗日推算出另外两个点(特解)为L4、L5。例如,两个天体环绕运行,在空间中有五个位置可以放入第三个物体(质量忽略不计),并使其保持在两个天体的相应位置上。理想状态下,两个同轨道物体以相同的周期旋转,两个天体的万有引力与离心力在拉格朗日点平衡,使得第三个物体与前两个物体相对静止。
英语百科
Lagrangian point 拉格朗日点(重定向自Lagrange Points)
![]() ![]() ![]() ![]() In celestial mechanics, the Lagrangian points (/ləˈɡrɑːndʒiən/; also Lagrange points, L-points, or libration points) are positions in an orbital configuration of two large bodies where a small object affected only by gravity can maintain a stable position relative to the two large bodies. The Lagrange points mark positions where the combined gravitational pull of the two large masses provides precisely the centripetal force required to orbit with them. There are five such points, labeled L1 to L5, all in the orbital plane of the two large bodies. The first three are on the line connecting the two large bodies and the last two, L4 and L5, each form an equilateral triangle with the two large bodies. The two latter points are stable, which implies that objects can orbit around them in a rotating coordinate system tied to the two large bodies. |
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