These are my first steps alone, so my feet wobble.

Interviewer Well, at last the simulated bridge is finished, and I can make it wobble.

Interviewer Right. So if we get on it, we should be able to wobble it, yes?

Narrator We're just sailing out of harbor now, and it's at this stage when one can have a bit of a wobble mentally.

I'd like to convince you that the universe has a soundtrack and that soundtrack is played on space itself, because space can wobble like a drum.

In fact, when it did actually fill with water a year and a half ago, they were able to measure a wobble within the earth as it was spinning.

Allan McRobie is a bridge engineer from Cambridge who wrote to me, suggesting that a bridge simulator ought to wobble in the same way as the real bridge provided we hung it on pendulums of exactly the right length.

The reason we should fear this possibility is that the world s economic equilibrium is both fragile and unstable and could wobble dangerously without determined and coordinated policy intervention. A Fed rate hike might not tip it over, but some other seemingly innocuous event could.