Surmounting fluctuating barriers

Article Abstract:

New calculations demonstrate the inconstant nature of the potential wells which, according to quantum mechanics, allow particles to get out. The ability of alpha-particles to exit neutron-abundant radioactive nuclei is an instance of this property of quantum mechanics. Charles R. Doering and Jonathan C. Gadoua have shown mathematically that the potential well is subject to rapid, spontaneous change rather than being in an unchanging state. This research, based on the examination of a complicated system, may lead to a better understanding of quantum phenomena.

Models, Particles (Nuclear physics), Subatomic particles, Quantum wells, Potential theory (Physics), Doering, Charles R., Gadoua, Jonathan C.

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Colloidal crystals model real world

Article Abstract:

Colloidal suspensions are useful models in determining the process of crystallization. The formation of ordered structures in colloids is slow and easy to track. Nucleation plays an important role in crystallization and nuclei form at a faster rate as crystallization proceeds. The rate of formation of colloidal crystals is such that the nucleation rate seems to be high as the volume unoccupied by colloidal particles is low.

Observations, Colloids, Crystallization

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Is the principia publishable now?

Article Abstract:

There is a flaw in Isaac Newton's theory of gravity. Newton's argument that the gravitational force was transmitted between a planet and the Sun without the help of any medium and that the force was instantly transferred has been proved incorrect. This basis was challenged even by Newton's contemporary Christiaan Huyghens. Newton's first law about inertia has also been under attack.

Beliefs, opinions and attitudes, Criticism and interpretation, Gravity, Gravity (Force), Newton, Isaac

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