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<strong>Cosmic</strong> <strong>Game</strong> © Douglass A. White, 2012 v151207 195<br />

<strong>The</strong> shorter the wavelength, the higher the frequency. In the case of electromagnetic<br />

waves the energy is determined by the wavelength rather than by the amplitude of the<br />

wave. This means that a smaller wavelength has more energy than a larger wavelength<br />

and therefore has more mass. This is what our Compton formula also shows.<br />

Neutrinos<br />

Modern physics has found only a type of particle with no charge called the neutrino that<br />

is smaller than the electron. <strong>The</strong> neutrino has three variations (electron, muon, and<br />

tauon), all of which apparently are smaller than the electron. Each has an extremely<br />

small rest mass or perhaps only linear momentum, and the electron neutrino has the<br />

smallest mass. Because of their small size and lack of charge, neutrinos tend to pass<br />

through matter with almost no interactions and at nearly the speed of light.<br />

Neutrinos tend to oscillate among the three variations, a feature that shows they are really<br />

only quasi-particles, without a stable definition. <strong>The</strong> estimated mass of the electron<br />

neutrino is about .04 eV / c² = 7.132×10 -38 kg, but it could be even 2000 or more times<br />

smaller. At present there is no way to measure a slow-moving neutrino. Most<br />

neutrinos move at so close to the speed of light that they appear to have a much larger<br />

mass due to relativistic effects.<br />

<strong>The</strong> small mass of the neutrino allows it to easily accelerate to speeds close to that of<br />

light, and this particular feature makes the neutrino ideally suited to preserve the<br />

conservation laws of mass-energy and spin during weak interactions at the sub-atomic<br />

level. For example, a free neutron spontaneously decays within about 15 minutes into a<br />

proton, releasing an electron and an electron antineutrino. <strong>The</strong> neutron has a mass of

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