The trees scream when they thirst

Water being one of the main factors mortal existence. In the dry season or when the volume of water is reduced, they felt the impact. The team of scientists believe they have made the first ever recording of a tree gasping for water.

Researchers used slivers of dead pine wood covered in hydrogel to recreate the conditions of a living tree. (Picture from: http://now.msn.com/)

So, just like the human voice while breathing, the tree also make an ultrasonic sounds. It happened because they attract moisture as much as possible to survive the dry season. Remarkably, the resulting sound turned out a hundred times faster than it can be heard by the human ear.

The scientists team led by France physicist, Philippe Marmottant from Grenoble University, believe that they have been able to slow down the process, so that the voice of the plant can be heard during the experiment in the laboratory.

They use dead pine tree wood slices are given a lot of hydrogels. Conditions are made ​​as similar as possible as the tree of life. The gel begins to dry out due to environmental influences. Here, the researchers listened to the wood like started making popping sounds. The noise comes from air bubbles rise, then disappeared. This process is called cavitation.

The trees create air bubbles through the effort of trying to pull in water from the ground through their root system. (Picture from: http://www.dailymail.co.uk/)

Like the leaves on the tree that collects carbon dioxide, they open up the pores, making it vulnerable to water loss. To overcome this, the trees take water from the soil through its root system. Efforts to attract water and the humidity of the soil creates air bubbles. "We can track the articulation bubble and what we found was mayorrtas audible sound associated with the bubble," said Marmottant, on May 2, 2013.

Majority the sounds appears there may be other causes, such as wood cracks or insect. However, most of the noise that occurs during cavitation is this bubble. Now, a team of researchers beriomba try with equipment capable of listening to the unique sounds created by nature. *** [EKA | FROM VARIOUS SOURCES | DAILYMAIL | ISMI WAHID | KORAN TEMPO 4222]

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