[ad_1]
Formation of ice VII. / © Lawrence Livermore National Laboratory
And now scientists know why this is happening. A new study of anomalous ice types, known as Ice VII, showed how ice could form at rates exceeding 1,000 miles per hour (1610 km / h) and how it could relate to alien-originated worlds.
The natural type of this ice was found in March of this year. He was trapped in diamonds deep in the earth. In a recent study, this ice type has been thoroughly investigated and how it is formed. This process seems completely different from the normal water freezing in the ice.
Based on a mathematical model developed by a researcher at Lawrence Livermore National Labarotary in Canada, there is a pressure threshold at which ice VII begins to form at a rapid rate. This almost instantaneous conversion process is called "homogeneous nucleation".
"This is the system in which our perception of physics knowledge is tested," said physicist Alex Chernov, the author of the study.
Scientists have already discovered that Ice VII can form at temperatures and pressures (usually about 100,000 times the atmospheric pressure). However, experiments have shown that under such conditions, they form homogeneous (almost all ice at once) and heterogeneous (surface to inward formation).
So far, this means that physicists turn their heads and ask themselves: what is going on here? New research shows that there is a particular reason for such a process to occur. That is, the temperature difference between the liquid water and the rising ice crystals.
The atomic structure of this ice type or other ice phase differs from the crystal itself. And this has a decisive influence on the process of turning liquid water into solid ice. Scientists have succeeded in discovering that Ice VII ice initially formed into a molecular group and began to expand in water within the nisecond.
Such a process is partly due to the fact that there is no heat point at the time of nucleation and that the liquid becomes a solid, and that there is such a point under normal pressure and ice formation as we know it.
"There is no need to slow down the heat removal process and the rate of ice formation depends on the very fast process of molecular management," Chernov said.
Now that you have a mathematical model that matches your experimental data, you can apply it to all other research areas. The existence of ice lumps was theoretically described and created in the laboratory before it was discovered naturally in diamonds.
Explanation of the new formation of Ice VII at the molecular level can affect areas such as data storage, material synthesis and many other fields.
Molecular ice sheet deposition on ice VII © Lawrence Livermore National Laboratory
It can also help find life on other planets. The presence of water is a key indicator used to determine whether another planet can have life. But when the water is pushed and becomes ice VII, no form of life will be found.
"The water in the oceans world, bombarded by the remains of other planets, such as meteors and comets, can not survive because the water changes drastically," said Jonathan Belov, chief chemical researcher.
So this is another way to see if life forms of glacial planets can exist and is a fantastic example of how the physical limitations are still reviving.
The results of this study were published in Physical Review Letters.
<! –
->
[ad_2]
Source link
