It would be at the very moment when both themselves and all the other objects contained in the Projectile would be completely free from every operation of the law of gravity; in other words, when everything would cease to have weight.
This gradual diminution of the action of gravity, the travellers had been for some time noticing, but they had not yet witnessed its total cessation.

But that very morning, about an hour before noon, as the Captain was making some little experiment in Chemistry, he happened by accident to overturn a glass full of water.

What was his surprise at seeing that neither the glass nor the water fell to the floor! Both remained suspended in the air almost completely motionless.
"The prettiest experiment I ever saw!" cried Ardan; "let us have more of it!" And seizing the bottles, the arms, and the other objects in the Projectile, he arranged them around each other in the air with some regard to symmetry and proportion.

The different articles, keeping strictly each in its own place, formed a very attractive group wonderful to behold.

Diana, placed in the apex of the pyramid, would remind you of those marvellous suspensions in the air performed by Houdin, Herman, and a few other first class wizards.