The atmosphere was quiet for a few seconds. Bai Yuxia continued working on the test paper.
Xue Yuantong asked in a childish voice, "Yuxia, why aren't you talking?"
Bai Yuxia thought to herself, 'Talking to you is a waste of life!'
...
Bai Yuxia's answer was correct; the wooden spoon was indeed the arm of the catapult, with a spoon at the end to hold the stone.
With the specifics in mind, Xue Yuantong began assembling.
Jiang Ning carefully carved the parts, choosing black walnut material, and polished the wood surface smooth, with no burrs.
Chen Siyu widened her eyes, watching Xue Yuantong assemble. Even after class, she kept watching.
Compared to those large assembly toys, the parts of an ancient catapult weren't many, and Xue Yuantong understood the so-called principles of the catapult.
