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The Selective Nature of the Nerve Cells

The nerve cells, which are called the neurons, unlike other cells, have axons and dendrites. The dendrites consist of many short extensions and look like the roots of the cell. These extensions receive signals from other neurons and the recipient cells and convey it to the body of the cell. Axons, on the other hand, are thin structures that arise from the cell body.

Good Manners at Home

Showing affection towards one's wife and children is one of the things that lead to creating an atmosphere of happiness and friendliness in the home. Thus, the Messenger of Allah (PBUH) advised Jabir (May Allah be pleased with him) to marry a virgin, saying:

The House of Wisdom in Baghdad

The Caliph Haroun Al-Rasheed built a magnificent Scientific Academy in which was housed a huge bookstore containing manuscripts and books about various subjects in the arts and the sciences and in different languages. This Scientific Academy was called the House of Wisdom (Bayt Al-Hikma and Dar Al-Hikma).