The structure helps shrimp to endure ‘steel punch’

Shrimp Tit has an extremely powerful punch, comparable to a 5.56 mm diameter bullet. Their punch is strong enough to break the shells or even aquarium glass. However, the shrimp is protected from the force of its own punch thanks to the damping armor, Interesting Engineering Report. Researchers at Northwestern University discovered the secret behind the punch of the shrimp, revealing the complicated self -defense mechanism to help filter harmful sound waves. They announced the discovery on February 6 in Science magazine.

Shrimp lives in shallow tropical waters. This marine creature is equipped with a hammer on each side called Dactyl. This part stores energy inside the spring -like structure. Removing the latch will release the storage energy, pushing the stick forward with the booming power. Shrimp punches can kill prey or help protect the territory. The attack creates a low pressure area to form a bubble in water. The bubble quickly exploded, activating the megahertz frequency shock wave.

“When the shrimp attacked, the force of creating compressive waves towards the target,” Horacio D. Espinosa, co -authored, said. “Along with the initial collision force, the secondary shocking effect makes the shrimp punch even more dangerous.”

However, the unique structure of the Dactyl mace helps the shrimp to avoid damage to its own tissue. The mace has a classification model to filter the sound, acting as the shield shield they create with the punch. “We find that shrimp use the compressed wave filtration mechanism, so they can maintain the ability to attack many times and prevent soft tissue from being destroyed,” Espinosa shared.

Researchers use high -end laser techniques to check the shells of shrimp. The test results revealed two separate areas in their maces. The collision area of ​​the mace is used for thorough shot, made up of fish bone -shaped mineral fibers to create durability and anti -damage. Below that is the circulating area arranged in a spiral shape called the Bouligand structure.

The fishbone -shaped model helps the shrimp’s mace to reduce the crack, while the spiral arrangement controls the movement of the compression wave. This complex biological design acts as a sound shield. It filtered all the high frequency horizontal waves, capable of destroying the most tissue, thereby protecting the shrimp before the compression wave caused by direct collision and explosive bubble. Research results can lead to the introduction of new synthetic filtration materials for protective appliances. It also inspired measures to prevent injuries due to an explosion in the army and sports.