Metallic hydrogen was first created on Earth

Scientists from Harvard created for the first time on Earth metallic hydrogen, a new material on our planet that its existence was predicted before 80 years.


The Harvard researchers have been able to compress hydrogen molecules with synthetic diamonds, exerting enormous pressures of the 495 GPa (gigascapal), much higher than those carried out in the center of our planet and at a temperature just above the absolute zero, -270 οC, or 5,5 Kelvin or -450 degrees Fahrenheit.

As scientists increased the pressure, they began to observe the translucency hydrogen να γίνεται μαύρο. Τέλος, σε πίεση 5 εκατομμύρια φορές τη δική μας πίεση του αέρα, το υδρογόνο απόκτησε αντανάκλαση. Οι ερευνητές παρουσίασαν αυτό το φαινόμενο ως απόδειξη ότι τα άτομα υδρογόνου είχαν αποκτήσει μία κανονική 3D δομή, όπως ένα μεταλλικό αντικείμενο, απόκτησαν δηλαδή μία φυσική κατάσταση η οποία είχε προβλεφθεί για πρώτη φορά από τους φυσικούς Hillard Huntington και Eugene Wignerin το 1935.

The discovery and observation of a metallic form of hydrogen will be important not only because it will solve a long-standing scientific mystery but also the possibilities of the material. The new material has virtually zero resistance to electricity, which is the best power line available on our planet. Scientists say in their work where published online in Science magazine yesterday, that metallic hydrogen will be "an important material for solving energy problems and may potentially revolutionize rocket technology as a powerful propellant".

In addition, such a material is metastable, which means it will remain metallic as the pressure that forced it to change form and gas becomes solid, goes down to normal levels. But switching from solid to gas again, through some other external influences, will release huge amounts of energy, revolutionizing missile technology.

It is believed that liquid metallic hydrogen is a basic component of the giant planets Zeus and Saturn, a theory the Juno spacecraft hopes to detect, according to NASA.

Δεν είναι η πρώτη φορά που οι επιστήμονες ισχυρίστηκαν ότι έχουν ανακαλύψει μεταλλικό υδρογόνο. Γερμανοί επιστήμονες είχαν κάνει επίσης ανάλογη δήλωση το 2012, που αποδείχθηκε αναληθής. Αυτός είναι ο λόγος που αρκετοί φυσικοί σε διάφορες χώρες (ΗΠΑ, Βρετανία, Γαλλία), according to "Nature", said they were not convinced at all that metallic hydrogen was actually created and reserved until more experiments were made.

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