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One of the biggest headlines of the year claims that scientists have reached their feat of pursuing more than eighty years: turning hydrogen into metal. Other scientists have expressed doubts about this.
A team of researchers at Harvard observed this when using hydrogen to squeeze hydrogen at a temperature of 5.5 degrees absolute. When these scientists squeezed hydrogen, they found that the transparent hydrogen turned black. Finally, at 5 million times atmospheric pressure, hydrogen begins to reflect. Researchers believe this suggests that hydrogen atoms have been extruded into the regular structure of metals, a phenomenon first predicted by physicists Hillard Huntington and Hillard Huntington in 1935.
The metal state of hydrogen is observed to be important not only because it solves the long-standing scientific mystery but also because of the potential of this material. The authors of the study say it can be used as a powerful propellant and could revolutionize rocket science. The study was published in the online journal Science. This material will be metastable, which means that as long as the pressure that keeps it in this state is constant, it will always be in a metallic state until some external influences turn it back into normal hydrogen.
Metallic hydrogen may also have a major impact on planetary science. According to this theory, Jupiter may have a metal hydrogen nucleus, and the Juno detector may also hope to detect its existence.
This is not the first time scientists have claimed to have discovered metal hydrogen. German scientists also claimed to discover metal hydrogen in 2012, but at the time they were criticized for their incomprehensibility. The scientists quickly regretted the boldness of their announcement and later said that their research might have created metal hydrogen. The findings of these Germans also appeared in the papers of Harvard scientists, which made other scientists begin to question.
Paul Loubeyre, a physicist at the French Atomic Energy Commission, said: "I don't think this research is convincing."
The scientists interviewed by Nature said that because your sample has been reflected, do you think it is metal? Try it again. They believe that the reflection may be a different reaction of the diamond's alumina coating under extreme pressure. Other researchers have noted that Harvard researchers have only done one detailed measurement. How many times does the scientists have to repeat such results?
Eugene Gregoryanz, a physicist at the Department of Physics and Astronomy at the University of Edinburgh, said: "You have such a bold conclusion, why not repeat the experiment?"
The hydrogen sample for this experiment is still waiting for future experiments.
Squeezing hydrogen with diamonds scientists turn hydrogen into metal
Abstract If more scientists get the same results, the more convincing this result is. Conversely, when only a team of scientists has discovered a single observation, then this is actually very suspicious. One of the biggest headlines of the year claims that scientists have reached them...
If more scientists get the same results, the more convincing this result is. Conversely, when only a team of scientists has discovered a single observation, then this is actually very suspicious.