Sobek aka magnetic rearrange ment under pressure King UNIS
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| "Anubis" is a Greek rendering of this Egyptian name.[6][7] Before the Greeks arrived in Egypt, around the 7th century BC, the idea was known as Anpu or Inpu. The root of the name in ancient Egyptian language means "a royal child." Inpu has a root to "inp", which means "to decay." "The Dog who Swallows Millions," "Foremost of the Divine Booth."[8] "Foremost of the Westerners," and "He Who Is in the Place of Embalming."[9] |
Sobek enjoyed a longstanding presence in the ancient Egyptian pantheon, from the Old Kingdom of Egypt (c. 2686–2181 BCE) through the Roman period (c. 30 bce–350 ce). He is first known from several different Pyramid Texts of the Old Kingdom, particularly from spell PT 317.[4][5] The spell, which praises the pharaoh as the living incarnation of the crocodile god, reads:
attained by moving 15 of the 360 degrees of the arched surface
continuously as the orb turns
In crystallography, the hexagonal crystal family is one of the 6 crystal families, which includes two crystal systems (hexagonal and trigonal) and two lattice systems (hexagonal and rhombohedral). While commonly confused, the trigonal crystal system and the rhombohedral lattice system are not equivalent (see section crystal systems below).[1] In particular, there are crystals that have trigonal symmetry but belong to the hexagonal lattice (such as α-quartz).
The hexagonal crystal family consists of the 12 point groups such that at least one of their space groups has the hexagonal lattice as underlying lattice, and is the union of the hexagonal crystal system and the trigonal crystal system.[2] There are 52 space groups associated with it, which are exactly those whose Bravais lattice is either hexagonal or rhombohedral
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.[1][2] In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations. The scientific study of crystals and crystal formation is known as crystallography. The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification.
The word crystal derives from the Ancient Greek word κρύσταλλος (krustallos), meaning both "ice" and "rock crystal",[3] from κρύος (kruos), "icy cold, frost".[4][5]
Examples of large crystals include snowflakes, diamonds, and table salt. Most inorganic solids are not crystals but polycrystals, i.e. many microscopic crystals fused together into a single solid. Polycrystals include most metals, rocks, ceramics, and ice. A third category of solids is amorphous solids, where the atoms have no periodic structure whatsoever. Examples of amorphous solids include glass, wax, and many plastics.
Despite the name, lead crystal, crystal glass, and related products are not crystals, but rather types of glass, i.e. amorphous solids.
An ion (/ˈaɪ.ɒn, -ən/)[1] is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton, which is considered to be positive by convention. The net charge of an ion is not zero because its total number of electrons is unequal to its total number of protons.
A cation is a positively charged ion with fewer electrons than protons[2] while an anion is a negatively charged ion with more electrons than protons.[3] Opposite electric charges are pulled towards one another by electrostatic force, so cations and anions attract each other and readily form ionic compounds.
Ions consisting of only a single atom are termed atomic or monatomic ions, while two or more atoms form molecular ions or polyatomic ions. In the case of physical ionization in a fluid (gas or liquid), "ion pairs" are created by spontaneous molecule collisions, where each generated pair consists of a free electron and a positive ion.[4]
Ions are also created by chemical interactions, such as
the dissolution of a salt in liquids, or by other means, such as
passing a direct current through a conducting solution,
dissolving an anode via ionization.
Balmer series (n′ = 2)[edit]
The Balmer series includes the lines due to transitions from an outer orbit n > 2 to the orbit n' = 2.
Named after Johann Balmer, who discovered the Balmer formula, an empirical equation to predict the Balmer series, in 1885. Balmer lines are historically referred to as "H-alpha", "H-beta", "H-gamma" and so on, where H is the element hydrogen.[10] Four of the Balmer lines are in the technically "visible" part of the spectrum, with wavelengths longer than 400 nm and shorter than 700 nm. Parts of the Balmer series can be seen in the solar spectrum. H-alpha is an important line used in astronomy to detect the presence of hydrogen.
| n | λ, air (nm) |
|---|---|
| 3 | 656.3  |
| 4 | 486.1  |
| 5 | 434.0  |
| 6 | 410.2  |
| 7 | 397.0  |
| ∞ | 364.6 |
| Source:[9] | |
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