Chapter 2321 Steel Straight Man Nangong Boss 1

Why can't it live on this land or that land at ease? Could it be that the female bird living on land here is having an affair and the other side is its wife?

Nangong Nuannuan glanced at Nangong Jin, saw that he read it calmly, flipped through the paper and everything else was correct, and returned the paper to the principal without any facial expression.

The teacher surnamed Zheng said, "Parent Nan Xu, you have also read Nan Xu's test paper. I would like to hear your opinion."

Nangong Jin looked at this teacher Zheng with a strange look on his face.

Teacher Zheng was a middle-aged woman in her 40s, but she was blushed by Nangong Jin.

"Why, you have nothing to say, right? You also think Nan Xu is wrong, right? If you really think so, I hope you can go back and discipline Nan Xu. At least let him understand what it means to respect teachers and teach them."

Nangong Xu said lightly, "Teacher, I can tell from the quarrel between you and Nan Xu's head teacher just now that this question is yours, so you are very dissatisfied with Nan Xu's denial of you. Nan Xu also Small, there is no way to make an analysis from scientific theories, only from the normal state to analyze the feasibility of crows drinking water and birds flying over the ocean. But I can clearly tell you a formula about buoyancy.

If you want a piece of wood to carry a bird, you need to meet a condition, that is - the buoyancy generated by the wood - the gravity of the wood itself + the gravity of the bird.

In order to get the most out of the wood, we assume that the wood is just completely stepped below the water surface, then the conclusion that can be drawn is - density of water * volume of wood * acceleration of gravity - density of wood * volume of wood * acceleration of gravity + Bird's weight * gravitational acceleration. Combine similar terms and simplify them to get: volume of wood*(density of water-density of wood-weight of bird).

The density of water is about 1000 kilograms per cubic meter, and the density of wood is between 400 and 750 kilograms per cubic meter. Let's assume that the bird is very smart and find a lighter one, and the density of wood is based on 500 kilograms per cubic meter. cubic meters. It can be concluded that: the weight of the bird / the volume of the wood - 500 kg/m3.

In simple terms, this is the conclusion: if the bird weighs one kilogram, then the volume of wood - 1/500 cubic meters - 0.002 cubic meters - 2 cubic decimeters.

Teacher, do you know what the concept of 2 cubic decimeters is? It is our common brick, about two. What is the concept of a one-kilogram bird? A chicken weighs about three or four pounds, and one kilogram is a small chick.

Can a bird the size of a chicken hold two bricks of wood or a stick as thick as an arm? Even if it can, the resistance of the wind to the wood block will cause it to be rolled directly from the ocean to the bottom of the sea.

You might say that the bird in your proposition is larger than a chick-sized bird. But the bird is big and heavy, so it may not be a branch with the thickness of an arm, but as Nan Xu said, it will have to carry a pole to travel. I don't think a bird can lift a pole. Teacher, what do you say? "

headmaster:……

head teacher:……

Question teacher: ...! ! !

Nangong Nuan Nuan on the side is serious. But inside, she felt that she could laugh into an internal injury.

Her brother is probably a straight male terminal cancer patient, right?

Identification is completed!

Nangong Jin seemed to think that what he said was not enough to anger the teacher, and said—