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Sep 9, 2024 · With an atomic number of 2, Helium is second lightest element after hydrogen, helping to keep the rocket’s weight low, which is crucial for achieving the necessary speeds and altitudes to reach orbit.
Sep 8, 2024 · Helium is used to pressurize fuel tanks, ensuring fuel flows to the rocket’s engines without interruption; and for cooling systems. As fuel and oxidiser are burned in the rocket’s engines, helium fills the resulting empty space in the tanks, maintaining the overall pressure inside.
Sep 14, 2024 · Helium is used to pressurise fuel tanks, ensuring fuel flows to the rocket’s engines without interruption; and for cooling systems. As fuel and oxidiser are burned in the rocket’s engines, helium fills the resulting empty space in the tanks, maintaining the overall pressure inside.
22 hours ago · Helium ion irradiation results in vanishing of the intensity of 5.8 eV band that can be ascribed to the formation of ion-induced defects, which act as recombination centers, thus decreasing the concentration of non-equilibrium excess charge carriers.
1 day ago · Nuclear fusion uses lighter elements, such as hydrogen and helium, which are in general more fusible; while the heavier elements, such as uranium, thorium and plutonium, are more fissionable. The extreme astrophysical event of a supernova can produce enough energy to fuse nuclei into elements heavier than iron.
4 days ago · In quantum mechanics, an atomic orbital (/ ˈɔːrbɪtəl /) is a function describing the location and wave-like behavior of an electron in an atom. [1] . This function describes an electron's charge distribution around the atom's nucleus, and can be used to calculate the probability of finding an electron in a specific region around the nucleus. [2]
2 days ago · Selenium is a semiconductor and is used in photocells. Applications in electronics, once important, have been mostly replaced with silicon semiconductor devices. Selenium is still used in a few types of DC power surge protectors and one type of fluorescent quantum dot.
