The live broadcast life of Lao Linzi in Northeast China

Chapter 524 Skull Shock Absorber (for Subscription)
"Yeah, this woodpecker works so hard, won't he have occupational diseases?"

"The woodpecker's mouth should have no nerves, so it can't feel pain, right?"

"But even if their mouths don't hurt, their heads will still be dizzy, right?"

"Yeah, don't they hurt? Or are they... numb?"

Woodpeckers tap very fast, and the average number of times they tap trees per day is basically 500 or 600 times.

In fact, such a question...is not surprising.

Li Yuan explained with a smile: "Don't worry, everyone, woodpeckers will definitely not have a concussion, and their heads will not be dizzy, let alone hurt."

"There are at least three layers of shock-proof devices installed on the woodpecker's head. Their skull structure is loose and filled with air, and there is even a tough outer meninges inside the skull."

"And there is a narrow gap between the outer meninges and the brain, which is filled with liquid. This naturally reduces the fluid transmission of shock waves and plays a role in shock absorption."

"Moreover, there are well-developed and powerful muscles on both sides of the woodpecker's head, which can play the role of shock resistance and shock absorption."

Studio.

"Damn it, shock absorber?"

"This is too arrogant, isn't it?"

"How can such a small head hold so many things?"

"Amazing……"

"Really? Can it absorb shocks by itself?"

"That sounds amazing, too."

Li Yuan smiled and said, "Actually, I don't blame everyone for being curious. This phenomenon is indeed amazing. And there are also specialized scientists who have studied it."

"The maximum speed of the woodpecker's head reaches 7m/s, and it decelerates to zero in just 0.5 milliseconds after hitting the tree, and the time it moves forward is 8 to 25 milliseconds each time. The acceleration it bears during deceleration reaches 1500g , That is to say, it can withstand 0.5 times the acceleration of gravity in this short 1500 milliseconds."

"This sounds a bit exaggerated, and at this speed, if it is other birds and animals, I am afraid that there will already be brain problems."

"But the woodpecker, because of its unique skull structure, ensures that its head will not be damaged at all."

"The woodpecker's skull is actually very strong, and around the head of the woodpecker, there are also shock-absorbing muscles, and the magic is that such muscles can also keep the tip of the beak and the head in a straight line. , allowing the head to move strictly in a straight line when pecking."

"If the head of the woodpecker is slightly tilted when pecking the wood, then this rotation action and the impact of the woodpecker will shock its brain, but the tip of the woodpecker's beak and the head are always kept in a straight line There is never a mistake."

"So, even though the woodpecker is working every day, there is no damage to the body and the head."

"There is also the dura mater between the brain and the skull of the woodpecker. Although this part is small, it can play a very good protective role."

"And their brain's top-to-bottom dimensions are longer than their front-to-back dimensions, which means the forces acting on the skull are better distributed."

Studio.

"It sounds amazing!"

"It's kind of awesome!"

"It's a pity not to peck wood with such a head structure..."

"Haha, it's true, if this woodpecker is doing other jobs, it's still a bit overqualified."

"Really."

"It seems... woodpeckers are born to be hardworking!"

"It seems that this nature is really powerful!"

"Inevitable, nature is not powerful, how could it create so many powerful people?"

On the side, Er Bao also listened with gusto.

Although Er Bao didn't understand many of the words Li Yuan said, but the general meaning was pretty much clear.

Erbao: "Brother Li Yuan, if we also have such a powerful head, won't we be afraid of being bumped in the future?"

Li Yuan couldn't help laughing

"This...just installing a head may not be enough."

"Woodpeckers don't have concussions, not only because of their special brain structure, but also because of the special hyoid bone of woodpeckers."

Er Bao was full of doubts.

"Hyoid? Is it the bone of the tongue?"

Li Yuan nodded.

"It can be explained in this way."

"The hyoid bone runs from under the beak to the nostrils, runs under and around the skull, passes over the top of the skull, and finally meets at the forehead."

"Scientists have discovered a mature bone called the hyoid bone through research. The only similar structure found now is the Adam's apple of our humans."

Some researchers once specially set up a specific environment to observe the situation of woodpeckers. They used sensors to test the strength of pecking, and also selected two slow-motion cameras to capture these pecking shots.

Finally, the analysis data of the woodpecker skull were collected through computerized tomography and scanning electron microscopy, and how these parts were combined and where the bone density changed was marked in detail. With the help of the collected data, the computer simulated the woodpecker's pecking process. force on the skull.

The final result is that there are three factors that can reduce the damage of woodpeckers to woodpeckers.

The first is the hyoid structure that surrounds the entire skull of woodpeckers.

This structure is like a seat belt in life, and it plays the role of a seat belt in the initial impact.

The second reason is that the upper and lower parts of the woodpecker's beak are not equal.So when impact force is transmitted from the tip of the beak to the bone, the structure dampens the impact and keeps it away from the brain.

In the end, it's because of the spongy structure of different parts of the woodpecker's skull.Letting the layered bones help to dissipate extreme impact forces, thus protecting the brain as well.

The reason why the woodpecker's brain can be protected from injury is because of the combined effect of these three factors, rather than any one of them alone.

Because of these detailed survey data, Dai also played a certain role in the study of the design of human life protection devices, and even played a great role in industrial design.

Studio.

"It seems... this woodpecker is really powerful!"

"How many bugs can such a woodpecker eat in a day?"

"Since I saw this woodpecker knock, how many times have I knocked?"

"Doesn't it rest?"

"The host said before that they are resident birds, so what do they eat in winter?"

"There are bugs in winter! But they are usually in the innermost part of the trees, and they are just hibernating..."

Li Yuan: "Well, yes, woodpeckers are one of the most common resident birds. The most common species of woodpeckers are actually green woodpeckers and spotted woodpeckers."

(End of this chapter)