The actual gold was recovered by passing the crushed ore, mixed with water, over goats'skins, the fur trapping the heavy particles of gold while allowing the lighter minerals to be washed off.
32.
He was also appointed as the director of Institute of Heavy Particle Physics at PKU . In November, 1993, Chen was elected an academician of the Chinese Academy of Sciences, Maths and Physics section.
33.
He was mentioned with A . Sandulescu and W . Greiner in the New Encyclop�dia Britannica for calculations, published in 1980, indicating the possibility of a new type of decay of nuclei : heavy particle radioactivity.
34.
And subsequently a version assuming that the light particles are four-component Dirac spinors, but that speed of the heavy particles is small relative to c and that the interaction terms analogous to the electromagnetic vector potential can be ignored:
35.
Kaons are exotic, very heavy particles with many unusual qualities, and one that is particularly relevant to the soft equation of state that Brown and Bethe were seeking : Two or more kaons can occupy the same energy level at the same time.
36.
This backscattering process originates e . g . from a collision with a heavy particle ( i . e . substrate nucleus ) and leads to wide-angle scattering of the light electron from a range of depths ( micrometres ) in the substrate.
37.
As noted above, when the inner product Q _ { mn } ^ * between the heavy particle states u _ n and v _ m vanishes, the associated transition is " forbidden " ( or, rather, much less likely than in cases where it is closer to 1 ).
38.
A team of physicists based at the University of Rome has generated both intense excitement and profound skepticism among scientists around the world by presenting evidence that they may have detected a heavy particle that could solve a 70-year-old mystery in astronomy and lead to a conceptual breakthrough in physics.
39.
The Tevatron collides protons and antiprotons at a center-of-mass energy of about 2 TeV . The very high energy available for these collisions makes it possible to produce heavy particles such as the Top quark and the W and Z bosons, which weigh much more than a proton ( or antiproton ).
40.
:: : First, in order to explain such phenomena as the asymptotic form of excitation and ionization formulas for high energies of the bombarding particles and the absence of a threshold for processes of inelastic collisions with heavy particles, it was necessary to "'assume a continuous velocity distribution of atomic electrons " '.
