The pressure and temperature conditions at which iron melts are important for terrestrial planets because they determine the size of the liquid metal core, an important factor for understanding the potential for generating a radiation-shielding magnetic field. Kraus. used laser-driven shock to determine the iron-melt curve up to a pressure of 1000 gigapascals . This value is about three times that of the Earth’s inner core boundary.
Given the prominence of iron in planetary interiors, we require accurate and precise physical properties at extreme pressure and temperature. A first-order property of iron is its melting point, which is still debated for the conditions of Earth’s interior. We used high-energy lasers at the National Ignition Facility and in situ x-ray diffraction to determine the melting point of iron up to 1000 gigapascals, three times the pressure of Earth’s inner core.
Fera t-on «péter» notre planète AVANT d’avoir trouvé une roue de secours !?☝️😵💫🏷 👨🔬🪙👩🔬
It’s still crazy that the diagram of the inside of earth is just an assumption based on observations and we have no definite proof of what it looks like inside the earth.
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