Now that's 3400 times the force of gravity.

这是重力的3400倍。

Water molecules can float upwards, against the force of gravity.

水分子可以反重力向上浮动。

Roughly, the force of gravity or acceleration on an object.

粗略地说，就是作用在物体上的重力或加速度。

We also know that the tension force plus the force of gravity-- and what's the force of gravity?

重力是多少？重力是多少？

But this inward force of gravity is

这个内向重力是 当物体运动时，将物体向内加速（沿重力方向）。

Without the daily force of gravity, people and mice normally lose muscle.

如果每天不受重力的影响，人和老鼠的肌肉通常都会消失。

We forget sometimes that our preexisting beliefs have their own force of gravity.

我们有时会忘记先前所拥有的信仰有着他们自身的吸引力。

Enormous energy is needed to launch a spacecraft against (the force of) gravity.

发射飞船需要巨大的能量来摆脱地心引力。

But in space, the force of gravity becomes very clear.

但在太空中，引力的作用就非常明显了。

But in the case of the top, the force of gravity never changes.

但在顶部，重力永远不会改变。

But the planet right over here, there's an inward force of gravity.

但是，因为这个行星的存在， 对卫星有向内的重力。但是，因为这个行星的存在， 对卫星有向内的重力。

And we'll talk more about the force of gravity in the future.

以后，我们将会更多地讨论重力问题。

Remember, though, that the force of gravity depends on those masses.

记住，虽然引力的大小取决于两个物体的质量。

The force of gravity is just the weight of the object.

重力就是这个物体的重量。

And the component of the force of gravity that is parallel.

这个力，也就是平行於斜面的这个地心引力的分力。

Without the force of gravity, the astronauts do not know exactly how the cookie will look.

在失重状态下，宇航员们不知道饼干将会是什么样子的。

Because g is the force of gravity.

因爲g是重力加速度。

Well there's the force of gravity on this pie.

饼受重力。

That force of buoyancy pushes up on each ring, until it matches the downward force of gravity.

浮力在每个环上向上推，直到它与向下的重力平衡。

Until the force of collisions with air molecules is equal to the force of gravity pulling it down.

直到与空气分子的碰撞力等于将其拉下的重力。