Chapter 1579

Ye Hei: "Nightmare Space isn't stupid. If you let Fuyu carry a fairy weapon, isn't that obviously a problem?"

Xiaomai: "Right. Sure enough, even after becoming a Great Luo Golden Immortal, Young Lady's suggestions still can't be listened to. They're basically poisonous."

Su Xiao: "Xiaomai, how dare you look down on me?"

Xiaomai: "How is it me looking down on you? You have a prior record!"

Zhang Taixuan: "Buy a physics holy sword. When the time comes, I'll guide you."

Naiyako: "Right, the crowbar is the strongest!"

Su Xiao: "But, can Kazha lift it? That thing weighs over twenty jin, right? Can she swing it?"

Fuyu Kazha: "Over twenty jin, I can still lift it. Miss Su looks down on people too much."

Su Xiao: "I mean swing, not lift. Lifting it is easy, but to use it as a weapon, just lifting it isn't enough. Like a sword—once it reaches a few jin, holding it level and thrusting straight, you'd already find it difficult. Would you think an ordinary person can't lift something weighing a few jin?"

Xiaomai: "Really?"

Hu Yifei: "Of course it's true. A sword hilt half a chi, a blade three chi, using the crossguard as the fulcrum of a lever—a sword weighing three jin requires more than six times the sword's weight in force to hold level. Relying on five fingers and wrist to support nearly twenty jin of weight is still somewhat difficult for an untrained ordinary person. This is the principle of leverage."

Hu Yifei: "This is completely different from lifting something with arm muscles. And that's just ordinary level holding. If you also have to thrust fast and thrust accurately, the demand on a person's strength is even higher. So real single-handed swords are very light. The Sword of Goujian, King of Yue—you know it, right? That sword is only 658 grams."

Su Xiao: "The principle of leverage came out? What ancient knowledge."

Xiaomai: "Although it's ancient, the way of gripping a sword does indeed follow the principle of leverage."

Fuyu Kazha: "Seems that's true too. Being able to lift a crowbar doesn't mean I can use it to attack enemies."

Just thinking about carrying something weighing ten or twenty jin and nimbly attacking enemies, Fuyu Kazha felt it was rather unlikely.

Lifting it up isn't too difficult.

Attacking enemies quickly, nimbly, and accurately—now that's hard.

Zhang Taixuan: "This is a small problem. Just buy it back first, and then I'll teach you. I guarantee you can become a physics sword saint!"