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Helium

2010
Today we learn at such a young age about the periodic properties of the elements and their atomic structure that it seems as if we grew up with the knowledge, and that everyone must always have known such basic, simple stuff. But till nearly the end of the nineteenth century no one even suspected that such things as the noble gases, with their filled ...
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NONLOCALITY IN (HELIUM-HELIUM) INTERATOMIC POTENTIALS

1976
Publisher Summary This chapter highlights the nonlocality in interactomic potentials. Interatomic potentials are usually taken to be purely local. With this assumption, the potential is obtained through the use of Born–Oppenheimer approximation. This usually leads to a long range attractive van der Waals' potential and a short range steep repulsion ...
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Excitation of helium by helium ions

Physica, 1964
F.J. de Heer, J. van den Bos
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The Properties of Liquid and Solid Helium and Helium-3 and Helium-4

American Journal of Physics, 1971
J. Wilks   +2 more
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Helium

ACM SIGGRAPH 2005 Electronic Art and Animation Catalog, 2005
Adam Janeczek   +2 more
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