اقتباسات من كتب بول ديفس جوليان براون
بول ديفس - جوليان براون
له (1) كتاب بالمكتبة, بإجمالي تحميل وقراءة (5,282)
غير متوفر وصف له.
الفيزيائيون كعلماء الدين، ميالون الى انكار ان يكون اي شيء خارج دائرة اهتمامهم
محمد الملكي
Solids are formed by intensively compact atoms, with strong bonding forces between the atoms. These binding forces are responsible for the mechanical properties of the solid, such as hardness, elasticity, thermal and electro-magnetic and optical properties. Depending on the type of material and the conditions in which it was created, the atoms can be classified either into atoms of a uniform geometric pattern (crystalline solids, which include for example minerals and ice made from ordinary water) or atoms of an irregular pattern (amorphous solids, such as Home windows). The bulk of solid state physics and research revolves around crystals, due in large part to the frequency of the atom in the crystal (the frequency is a distinctive feature of the atom) facilitates mathematical modeling, also from the reasons that research focuses on crystals that crystalline materials often have electrical or optical properties , Mechanical, or magnetic that can be used for engineering purposes. The forces between the atoms in a crystal can take many forms. For example, in the sodium chloride (table salt) crystal, the crystal consists of sodium and chlorine ions bound together by ion bonds. In other cases
Mohamed H. 