Explaining the existing theory, why does the woodpecker crazy knock on the trunk without brain shock?

Author:Science fiction Time:2022.07.15

Science Fiction Network July 15 (Qin Yingying) has always been curious about why the woodpeckers do not break the brain without hitting the trunk without damaging the brain. At present, their skull should be like shock absorption helmets. However, recent research has overturned this view. Calculation shows that any "shock absorption function" will hinder the pecking ability of woodpeckers. In fact, the head of the woodpecker is more like a hammer.

When the woodpecker sees the larvae, ant or any other insects in the woods, a pointed mouth pecks a mouth on the bark with a sharp mouth, and then grasps those insects with a long tongue. In order to eat bugs, the woodpecker uses its beak to hit the trees every day. According to statistics, the woodpecker taps about 500 to 600 times a day, and the speed of each peck is 555cm/s. It can reach 80cm/s, and scientists have calculated that at such a fast speed, the impact of the woodpecker's head is equal to 1,000 times that it is gravity.

The previous point of view is that the woodpecker's brain and other birds are smaller, which enables its skull to wrap the brain completely densely, so that the brain has almost no room to move. It is precisely because of its small brain and small movement space, so that woodpeckers can largely avoid the occurrence of cerebral vibration.

However, researchers now have found that woodpeckers will not absorb the impact of crackling with trees, and any shock absorption of skulls will be unfavorable to birds. Studies have proved that although the impact of trees pecking exceeds the known thresholds of monkeys and human brain shocks, the smaller brain of woodpeckers can bear it.

Studies have shown that even the strongest pecking shock of more than 100 times, it should still be safe for the brain of the woodpecker. The calculation shows that the burden of the woodpecker at that time was still lower than that of a brain shock.

- END -

This college admission notice, everyone is different

2007Shaanxi Normal UniversityStart with a brush handwritten admission noticeIt has...

The same roots of the same source and the veins of the same origin and the heart to build the humanities bay area together

In December 2020, the Office of the Ministry of Culture and Tourism, the Office of the Construction Leading Group of the Guangdong -Hong Kong -Macao Greater Bay Area, and the Guangdong Provincial Gove