BOOK 2. THE BATH SCHOOL. N. LEVASHOV'S «SVETL BROOM» IN A. KHATYBOV'S «BATH SCHOOL» AND A LABOUR SPADE

Book 2. The Bath School. Chapter 4. Theory and practice in the description of the Object to be taken to the Bath Description of the object to be taken to the Bath 198 these processes made it possible to find the "carrier" of the Generator that is optimal in form and application, to develop and make a radically new "SvetL" Complex with expanded resources. Let me remind you that human muscle tissue contains (1-2)·10 −2 % of silicon, bone tissue – 17·10 −4 %, blood – 3.9 mg / l. With food in the human body there comes up to 1 g of silicon daily. Piezomagnetism (for complete understanding) The appearance in a substance of a spontaneous magnetic moment upon the imposition of elastic vibrations is called the piezomagnetic effect. Piezomagnetism can exist only in antiferromagnets and ferromagnets and is fundamentally impossible in para- and diamagnetics. The thermodynamic consideration of the matter of piezomagnetism is based on the isolation and study in the expansion of the thermodynamic potential of N terms linear in the magnetic field Н i and one of the components of the elastic stress tensor s jk : Ф = Ф −+∆ If all the transformations of the magnetic symmetry of a given crystal leave at least one term in the expression invariant, then the corresponding coefficient L ijk (the piezomagnetism module) is nonzero, and a piezomagnetic moment appears in the crystal. v = − Ф Н v = ∆ v,. ,. Symmetry analyses made it possible to find all the classes of magnetic symmetry that approve piezomagnetism. They turned out to be 66 , and the type of tensor L ijk . was found for all of them. Due to the symmetry of the tensor s jk piezomagnetic tensors can be represented as 3 ´ 6 matrices, and the number of such matrices is 16. Ferromagnets include: Fe 2 O 3 , FeCo 2 , MnF 2 . Antiferromagnets: CoF 2 , FeF 2 . It can be seen from the formula that, in addition to piezomagnetism, there must exist an opposite effect: linear magnetostriction, in which the components of the strain tensor are linearly related to the magnetic field. The