Zhao Yi, clad in the cumbersome safety suit, led the group; he, like everyone else, was eager for the anti-gravity experience—it was new to them all.
Although it was he who had developed the theory of anti-gravity, research and application are two different matters. Having a head full of theories without corresponding experience made the real confrontation with it both exciting and anticipatory.
At that moment, a staff member took over for Zhao Yi, continually explaining the safety matters to be noted after entering and guiding them into the anti-gravity device.
The first batch of participants didn't experience weightlessness immediately upon entry; the anti-gravity device was activated only after they had entered, a wait of about fifteen minutes, during which a humming sound was heard by their ears.