Comment by dogprez
2 years ago
The metal shell is ridged though, so the volume maintains the same with the vacuum. A rubber duck collapses with a vacuum inside of it, thus losing the shape of a duck and reducing the volume of the object =). That's why I said it's just a piece of rubber with eyes.
> A rubber duck collapses with a vacuum inside of it
Not if there is vacuum outside too. In a vacuum it remains a duck and still floats.