If Quillon is standing in a room with a helium-filled balloon tied to a string in his hand, and he suddenly inverts himself to perform a handstand, what happens to the balloon? Provide a very brief response.
When Quillon inverts himself to perform a handstand, the helium-filled balloon will continue to float upwards because helium is lighter than air, which causes it to rise regardless of Quillon's orientation. The string, to which the balloon is tied, will dangle downwards towards the floor, directed by gravity. If the length of the string allows, it may rest on Quillon's body or drape alongside him, but the balloon will still ascend, attempting to reach the ceiling as it did when he was standing upright. This is because the balloon's behavior is determined by the buoyancy of helium in air and the downward force of gravity, neither of which are affected by Quillon's position.