It's a balloon, not a bubble. Balloons inflate and deflate; bubbles burst.

We can make balloon arrangements with dozens of balloons.

It's like making figures out of balloons. You can fill a balloon with air and shape it to be a pretzel, a donut or a hot dog. Each will have a different moment of inertia and a different center of gravity. By changing the shape of the balloon, you change the physical properties of the balloon.

Being forgiven is like having all the worst bits of yourself stuffed into a balloon and then having that balloon set free.

We introduce a balloon of half a liter volume (about a pint) in the stomach and inflate it so it takes up space and helps slow down the eating. This causes a sense of fullness, and the patient is helped to lose weight.

Bubbles burst, they really do. The Federal Reserve has to be concerned that just may happen, which could make them more cautious going forward.