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The towers of Hanoi

Legend has it that in the great temple of Varanasi, below the dome that marks the center of the world, lies a bronze base on which three diamond needles of a high elbow and the thickness of a bee's body are fixed . In one of these needles, God, at the beginning of the centuries, placed sixty-four discs of pure gold, the largest on the bronze base, and the others, in decreasing order of width, superimposed to the top.
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In detail

50 phrases by George Sand

Amandine Aurore Lucile Dupin, later Baroness Dudevant and best known by her male pseudonym George Sand (1804 - 1876), was a leading French writer, journalist and revolutionary. Forerunner of feminism, she wrote novels, stories, plays, an autobiography, literary criticism, political texts, etc.
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Briefly

Jealousy in adolescence

When adolescence arrives it is normal for relational conflicts of all kinds to appear in the family, however, something that usually disappears is jealousy between brothers, giving way to a more friendly and affectionate relationship. But in some cases jealousy can cross the barrier of childhood and enter the complex period of adolescence.
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Psychological pregnancy or pseudociesis

Psychological pregnancy is less frequent than it might seem. Despite being a fairly well-known concept at a general level, scientific literature is still lacking more research. It is a phenomenon of low incidence and, sometimes, is often accompanied by some type of disorder, as will be seen later.
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Articles

The hula-hoop snake

The distinguished naturalist and professor Von Schafskoplen, has studied profusely the behavior of the Hula-hoop Snake, named for its peculiar form of locomotion that consists in putting the end of the tail in the mouth and rolling on the ground like a hoop. This characteristic of the official genre has been described by many naturalists, and a professor claims to have seen three snakes combined in a large ring rolling at the speed of light and then disappearing swallowing each other, which has led to great scientific discussions. .
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