New Physical State of light;- by Seeker

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New physical state of light.

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Effect of music on human brain!

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From early beginnings in the womb until the late stages of adulthood, music plays an important role in human growth, development, and sustainment.  Music— to be defined here as organized sound— is an essential component of most cultures, coloring the world through melodies, harmonies, rhythm, and lyrics.  Humans use music as a form of emotional expression, as well as a group bonding activity through participation in orchestras, bands, and casual gatherings.  Most recently, psychological researchers have been interested to find that music has another, potentially even more important function: it can improve brain development.  In several experiments conducted regarding this phenomenon, statistics show that children who play instruments and possess the ability to read music tend to score higher on achievement tests (Costa-Giomi, 1999).  Also, brains of adult musicians are significantly different in structure and function than those of non-musicians (Schlaug, Nor...
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Capacitors and Dielectrics

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Capacitance Capacitance is the measure of an object’s ability to store electric charge. Key Points The unit of capacitance is known as the farad (F), which can be equated to many quotients of units, including JV -2 , WsV -2 , CV -1 , and C 2 J -1 . Capacitance (C) can be calculated as a function of charge an object can store (q) and potential difference (V) between the two plates:  C = q V C = q V  Q depends on the surface area of the conductor plates, while V depends on the distance between the plates and the permittivity of the dielectric between them. In storing charge, capacitors also store potential energy, which is equal to the work (W) required to charge them. For a capacitor with plates holding charges of +q and -q, this can be calculated:  W stored = CV 2 2 W stored = CV 2 2 . The above can be equated with the work required to charge the capacitor. Key Terms dielectric : An electrically insulating or nonconducting material considered for its electr...
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Why it takes small time to reach somewhere with high velocity. [Distance Contraction]

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Ever wondered, that why when you move fast you reach your destination early? The reason is obvious as v=s/t and as v(velocity) increases time shortens for a  fixed distance. But when you move in space free from any planetary interaction than something strange is observed. ""YOU REACH YOUR DESTINATION EARLIER THAN EXPECTED"" That's the time when special relativity comes into effect. As an object moves with great speed in space it pushes the space back, folding it, just as if you were moving on a carpet folding it back as you move. This brings your destination closer to you thus reducing the s in the equation v=s/t and with greater "v", "s" decreases so as the distance is no more fixed this equation is no more applicable. "t" calculated is greater in magnitude than actual time taken. That was Distance contraction for you in short.
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