How gravity causes a perfectly spherical ball to roll down an inclined plane ... have sought to quantitatively describe the much more complex rolling physics of real-world objects.

Example: Jessica dropped the ball when she missed the call from the job she wanted and they offered the position to someone else. Example: I know she really wants the promotion, but she hit below ...

I think every game has equal importance. But I think I would like to get the ball back rolling again. We've got to get back to the win column and get the ball rolling." The Cowboys' season has ...

To some clockmakers, this is a shame, as the escapement can be an elegant and mesmerizing piece of machinery, so [Brett] brought his rolling ball escapement to the exterior of this custom clock.