There is no gravity to hold them in place.

VOA: special.2009.06.24

Now, gravity, well force, is equal to mass times acceleration, g and the acceleration due to gravity is g.

是重力，等于质量乘以加速度，由重力导致的加速度是。

麻省理工公开课 - 热力学与动力学课程节选

And the idea was that gravity did work on the water and falling, and that work led to the generation of heat.

焦耳的想法是,重力对水，做了功。

麻省理工公开课 - 热力学与动力学课程节选

Mars has less gravity. My attempts to walk resulted in jumps and hops, which took me into the air.

VOA: special.2010.07.10

It violates gravity, but six-month-olds aren't smart enough to know that a block just stuck over here is also surprising.

因为它违背了地心引力,但六个月大的婴儿还是不够聪明,他们没能发觉突出的木块也是令人惊奇的

耶鲁公开课 - 心理学导论课程节选

Newton proved his idea by measuring how much gravity force would be needed to keep the moon orbiting the Earth.

VOA: special.2011.06.01

It's really amazing that what Newton did in the case of gravity was to find the expression for this.

这一点非常神奇,牛顿在引力方面的研究,只是为了找出这个的表达式

耶鲁公开课 - 基础物理课程节选

This most recent collision with Jupiter brought attention to how the huge planet's gravity affects our solar system.

VOA: special.2009.08.25

The poet, after all, is subject to gravity in Frost, to the force of the earth.

这个诗人，弗罗斯特，终究还是受制于地心引力，受制于地球的力量。

耶鲁公开课 - 现代诗歌课程节选

There was a new system of liquid nitrogen to keep the pilot cool and to resist the crushing force of gravity at high speeds.

VOA: special.2010.07.07

Imagine waking up every morning and saying to yourself: "I refuse to accept the law of gravity.

想象每天早上醒来后对自己说：,“我拒绝接受万有引力定律。

哈佛公开课 - 幸福课课程节选

Because of the gravity on Mars, spacesuits may have to be designed to be lighter than suits used in orbit or on the moon.

VOA: special.2011.04.06

She touched the edge of its voluptuous field, knowing it would be lovely beyond dreams, simply to submit to it, that not gravity's pull, laws of ballistics, feral ravening promised more delight.

一个死亡愿望就能达成，她经历过骄奢生活的边缘，知道如果一向它投降，就会有种超越梦境的快乐，野性的掠夺能够带来更多的欢乐。

耶鲁公开课 - 1945年后的美国小说课程节选

HeLa cells have gone to the moon to test the effect of zero gravity.

VOA: special.2010.07.21

They seem to be going somewhere and there's this sort of force of pull or gravity in music having to do with some chords wanting to go to other chords.

和弦向某一个方向发展，就像有一股力量拉着它们,或者说音乐的重力吸引着它们，让一些和弦想行进成为另一些和弦。

耶鲁公开课 - 聆听音乐课程节选

Scientists can observe what they believe to be dark matter only through its gravity.

VOA: special.2009.07.21

One should do," he says, "what archers do when attempting to reach a distant target, namely, aim your bow high, knowing that the force of gravity " will bring the arrow down."

他说：，“一个人应该做的是，模仿伟人所为,当试图达致遥不可及的目标时，意即将目标设高，明了重力会将,射出的箭吸回地面“

耶鲁公开课 - 政治哲学导论课程节选

Glenn explained later that at times it helped to be free of gravity.

VOA: special.2009.06.17

That is, you minimize potential energy and you see things falling under the force of gravity and so forthgoing to potential energy minima in conformance with this result.

换句话说，你使得势能最小化,然后发现我们关注的东西,在重力或者其他力的作用下下落,直到势能最小的地方,这和我们刚才的结果是一致的。

麻省理工公开课 - 热力学与动力学课程节选

My muscles were used to the gravity of Earth.

VOA: special.2010.07.10

If all you know is the particle is falling under the affect of gravity, that's not enough to say where the particle is, right?

如果你只知道,质点受重力作用下落,那并不足以表明物体的位移,对吧

耶鲁公开课 - 基础物理课程节选

It was the debut single from his latest album,Defying Gravity, which became his first release to top the Billboard 200.

VOA: standard.2009.12.22

But gravity has a remarkable property that the pull of the Earth is itself proportional to the inertia of the object.

重力有一个显著特征,即地球的引力,与物体的质量成比例

耶鲁公开课 - 基础物理课程节选

So the Pentagon awarded a 4-billion-dollar contract to build a version with a lower center of gravity and improved suspension.

VOA: standard.2010.08.01

And the aeronautics engineer who wants to build an airplane has to obey, take into consideration, learn it, study and understand the law of gravity.

航空航天工程师,想制造飞机，必须遵守，加以考虑，学习，研究理解万有引力定律。

哈佛公开课 - 幸福课课程节选

And my center of gravity is a little bit lower." "I feel like sometimes it is a little more difficult to knock me down.

VOA: standard.2010.02.09

There is work due to gravity.

我们就说对这个物体做了功。

麻省理工公开课 - 热力学与动力学课程节选

"Buildings in Jakarta are built to withstand horizontal acceleration of about and this earthquake which just happened yesterday maybe about five percent of gravity,"

VOA: standard.2009.09.07

Will you truly refuse to accept the law of gravity?

你真得能拒绝接受万有引力定律吗？

哈佛公开课 - 幸福课课程节选

It's wrong to think that you feel weightless because you escaped the pull of gravity.

但是要是你认为失重,就是不受重力那就大错特错了

耶鲁公开课 - 基础物理课程节选