November 12, 2012
Russell’s teapot, sometimes called the celestial teapot or cosmic teapot, is an analogy first coined by the philosopher Bertrand Russell to illustrate that the philosophic burden of proof lies upon a person making scientifically unfalsifiable claims rather than shifting the burden of proof to others, specifically in the case of religion.
Russell wrote that if he claims that a teapot orbits the Sun somewhere in space between the Earth and Mars, it is nonsensical for him to expect others to believe him on the grounds that they cannot prove him wrong. Russell’s teapot is still referred to in discussions concerning the existence of God.
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November 12, 2012
The DeltaWing is a racing car designed by Ben Bowlby that debuted at the 2012 24 Hours of Le Mans.
The entry will run under the Project 56 name, composed of Ben Bowlby’s DeltaWing Racing Cars (design), Dan Gurney’s All American Racers (constructor), Duncan Dayton’s Highcroft Racing (racing team) and International Motor Sports Association owner Don Panoz (advisor). Nissan’s NISMO division is also assisting in the development of the car.
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November 12, 2012
The quantum mind hypothesis proposes that classical mechanics cannot explain consciousness, while quantum mechanical phenomena, such as quantum entanglement (two particles acting in unison) and superposition (physical systems exist partly in all their particular, theoretically possible states, but, when measured, give a result corresponding to only one of the possible configurations [decoherence]), may play an important part in the brain’s function, and could form the basis of an explanation of consciousness.
However, physicist Victor Stenger characterized quantum consciousness as a ‘myth’ having ‘no scientific basis’ that ‘should take its place along with gods, unicorns and dragons.’ The main argument against the quantum mind proposition is that quantum states in the brain would decohere before they reached a spatial or temporal scale at which they could be useful for neural processing. This argument was elaborated by the physicist, Max Tegmark. Based on his calculations, Tegmark concluded that quantum systems in the brain decohere quickly and cannot control brain function.
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November 12, 2012
In quantum mechanics, quantum decoherence is the loss of coherence in a quantum superposition. Physical system—such as an electron—exists partly in all its particular, theoretically possible states (or, configuration of its properties) simultaneously; but, when measured, it gives a result corresponding to only one of the possible configurations. The act of observation collapses the multi-state wave function into a single-state particle from the perspective of the observer; and justifies the framework and intuition of classical physics as an acceptable approximation.
Decoherence is the mechanism by which the classical limit emerges out of a quantum starting point and it determines the location of the quantum-classical boundary. It occurs when a system interacts with its environment in a thermodynamically irreversible way. This prevents different elements in the quantum superposition of the system+environment’s wavefunction from interfering with each other. Decoherence has been a subject of active research since the 1980s.
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November 12, 2012
Gödel’s [ger-del] incompleteness theorems is the name given to two theorems, proved by Kurt Gödel in 1931. They are about limitations in all but the most trivial formal systems for arithmetic of mathematical interest. The theorems are very important for the philosophy of mathematics.
The idea behind the theorems is that some mathematical systems are not complete. Most people think they show that any attempt to find a complete and consistent set of axioms for all of mathematics (e.g. Hilbert’s program) is impossible.
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