Quantum entanglement occurs when particles such as photons, electrons, molecules as large as "buckyballs", and even small diamonds interact physically and then become separated; the type of interaction is such that each resulting member of a pair is properly described by the same quantum mechanical description (state), which is indefinite in terms of important factors such as position,momentum, spin, polarization, etc.

According to the Copenhagen interpretation of quantum mechanics, their shared state is indefinite until measured.Quantum entanglement is a form of quantum superposition. When a measurement is made and it causes one member of such a pair to take on a definite value (e.g., clockwise spin), the other member of this entangled pair will at any subsequent time[ be found to have taken the appropriately correlated value (e.g., counterclockwise spin). Thus, there is a correlation between the results of measurements performed on entangled pairs, and this correlation is observed even though the entangled pair may have been separated by arbitrarily large distances.

This behavior is consistent with quantum mechanical theory and has been demonstrated experimentally, and it is accepted by the physics community. However there is some debate about a possible underlying mechanism that enables this correlation to occur even when the separation distance is large. The difference in opinion derives from espousal of various interpretations of quantum mechanic. for more information visit http://en.wikipedia.org/wiki/Quantum_entanglement.

Quantum Entanglement 

Genius Words


One of Einstein's great insights was to realize that matter and energy are really different forms of the same thing. Matter can be turned into energy, and energy into matter.

أحد أعظم أفكار آينشتين وهي إدراك أن المادة والطاقة هما شكلان مختلفان من الشيء نفسه أي أن المادة والطاقة وجهان لعملة واحدة. وهذا يعني أن المادة يمكن أن تتحول إلى طاقة، والطاقة تتحول إلى مادة. 

Elctromagnetic waves

الموجات الكهرومغناطيسية

Spectral analysis of light

التحليل الطيفي للضوء


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