"These books…"
Baili Qingfeng skimmed through them.
Force, common forces, the composition of forces, the decomposition of forces…
"They are not related to electromagnetism, but I cannot ignore them, or my final grades will be affected. Even if the knowledge is not what I want, I have to endure it." Baili Qingfeng gritted his teeth and continued reading.
The interaction of forces, friction, static friction, friction factor, centrifugal force, vibration and reverberation…
"This looks interesting."
Baili Qingfeng suddenly stopped when he read the books in boredom.
At the beginning of the nineteenth century, when a troop marched through a stone bridge, it collapsed because of reverberation.
"Amplitude, cycle, frequency, natural frequency… Resonance…"
Baili Qingfeng read the books.
