Five: How powerful is Lu Zhishen?

How powerful is Lu Zhishen?

"Lu Zhishen uprooted the weeping willows" is a more classic piece in "Water Margin", and it is really expressively written. How much power does Lu Zhishen have? In other words, how much strength it takes to uproot a big willow tree.

In ancient times, willow was often used together, talking about willows, which had nothing to do with poplars.

"If you look closely, it's not Yang Hua, it's a little bit of tears." It is said that "catkins" have nothing to do with poplars.

"In the past, I went back, and the willows were still there. Now I think about it, the rain and snow are falling. "There is no such thing as a poplar tree here, and the willow is also a willow tree.

There is a special word for poplars in ancient times - 栘. One of China's earliest small encyclopedias, Erya, has long pointed out: "Tang Di, Yu. 栘 (yí), that is, 栘杨.

Cui Bao pointed out in "Notes on Ancient and Modern Times": "The poplar leaves are round, the poplar leaves are long, the poplar leaves are weak, and the breeze is swaying. Needless to say, poplar is a wild aspen that is abundant in the south, and today, southerners still call it aspen.

"Nineteen Ancient Poems" said: "Drive up to the east gate and look at Guo Bei's tomb from afar. Poplar He Xiao Xiao, pine and cypress Jiaguang Road. "—Notice, the aspen here is the real poplar."

Knowing this, you know that Lu Zhishen is pulling out willows, not poplars.

How tall and thick is the willow tree that Lu Zhishen pulled? It is not specifically written in the book, but it can be estimated. Because there were several crow nests on the willow tree, a group of crows was annoying, and Lu Zhishen was annoying, so he pulled it out.

In general, crows' nests are about 15 to 17 meters above the ground. It can be seen that the tree uprooted by Lu Zhishen should not be lower than 17 meters, so we will count it as 17 meters. How thick is it? The tree is an old tree, and it is near Xiangguoji Temple, which is a very famous temple, and the willow tree should be seventy or eighty years old, and the diameter of the tree should be 0.6 meters.

The trunk should be: 0.3X0.3X3.14X17=4.8 cubic meters. Since it is the turn of spring and summer, the tree is relatively wet, and the trunk alone must weigh 2 tons, and the weight of the tree should not be less than 3 tons.

Can Lu Zhishen pull it out if he has 3 tons of strength? Not yet. As tall as the tree is, the roots are as deep and wide as they are. He also had to overcome the "tension" of the roots. Even if the roots of the tree are 10 meters deep and 10 meters wide. How big is the underground reproduction?

5X5X3.14X10 = 785 cubic meters. The specific gravity of soil is generally 1.5 times that of water, and the weight of these soils will be 1177,5 kg, that is, 588.75 tons.

Of course, Lu Zhishen doesn't need to bring such dirt up. Just overcome the "grip force" of the soil on the roots of the tree. At one-tenth count, it is also 58 tons, and with the weight of the tree, it is 61 tons.

In other words, Lu Zhishen has at least 61 tons of strength to pull up the tree.

It's actually not enough to have such a big force, and there is also the problem of Lu Zhishen's foothold. He should be between 1.8 and 1.9 meters taller. His feet would not be more than 1.5 meters away from the tree, and at least a third of his upward pull force would be consumed by his feet. Therefore, Lu Zhishen needs 80 tons of strength to uproot this tree.

The author has personally seen the use of a crane to pull out a tree, the crane has a pulling force of 20 tons, but it can't pull up such a thick tree that Lu Zhishen pulled. Finally, a pit was dug around the tree and the roots were cut off, and the crane pulled up the tree.

It can be seen that Lu Zhishen, as a flesh and blood body, cannot uproot such a big tree. It can be concluded that there is a possibility that Wu Song killed the tiger; It is impossible for Lu Zhishen to pull out such a thick willow tree.

Of course, writing novels can be exaggerated, so as to show Lu Zhishen's divine power.