As per Old Xia's requirements, Xiang Kun controlled a coin to levitate in front of his body. He then manipulated it to orbit around him, like a "satellite".
Next, he compelled the coin to fly towards the wall of an abandoned factory.
The coin smacked into the wall and then fell to the ground, leaving no mark on the surface of the wall.
For the time being, he was unable to command the coin to accelerate continuously and stably in a particular direction along the electromagnetic track he had constructed. The force he could exert was still limited, and it became extremely weak as it moved away from his body, making it difficult to control steadily.
After retrieving the coin, Xiang Kun, watching Old Xia record their observations with a special symbol, was struck by a sudden inspiration.
"Give me all the coins you have, as well as that steel bead. I have an idea I'd like to try out."
