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2. 5 Crystals You Should Absolutely Have in Your Home

   www.aol.com/5-crystals-absolutely-home-142800561...

   If you're a beginner crystal user, here are the five popular stones you should start with, plus how to use each of them.

3. Crystal structure - Wikipedia

   en.wikipedia.org/wiki/Crystal_structure

   Twenty of the 32 crystal classes are piezoelectric, and crystals belonging to one of these classes (point groups) display piezoelectricity. All piezoelectric classes lack inversion symmetry . Any material develops a dielectric polarization when an electric field is applied, but a substance that has such a natural charge separation even in the ...

4. Crystal - Wikipedia

   en.wikipedia.org/wiki/Crystal

   A crystal's crystallographic forms are sets of possible faces of the crystal that are related by one of the symmetries of the crystal. For example, crystals of galena often take the shape of cubes, and the six faces of the cube belong to a crystallographic form that displays one of the symmetries of the isometric crystal system. Galena also ...

5. X-ray crystallography - Wikipedia

   en.wikipedia.org/wiki/X-ray_crystallography

   However, if the crystal has a higher symmetry, a smaller angular range such as 90° or 45° may be recorded. The rotation axis should be changed at least once, to avoid developing a "blind spot" in reciprocal space close to the rotation axis. It is customary to rock the crystal slightly (by 0.5–2°) to catch a broader region of reciprocal space.

6. Crystallography - Wikipedia

   en.wikipedia.org/wiki/Crystallography

   The International Tables for Crystallography [16] is an eight-book series that outlines the standard notations for formatting, describing and testing crystals. The series contains books that covers analysis methods and the mathematical procedures for determining organic structure through x-ray crystallography, electron diffraction, and neutron ...

7. For the Very First Time, We've Actually Filmed Sound Waves ...

   www.aol.com/lifestyle/very-first-time-weve...

   Scientists successfully filmed sound waves in a diamond crystal structure for the first time ever using an X-ray free-electron laser (XFEL).

8. Crystal growth - Wikipedia

   en.wikipedia.org/wiki/Crystal_growth

   Crystal growth is a major stage of a crystallization process, and consists of the addition of new atoms, ions, or polymer strings into the characteristic arrangement of the crystalline lattice. [ 1 ] [ 2 ] The growth typically follows an initial stage of either homogeneous or heterogeneous (surface catalyzed) nucleation , unless a "seed ...

9. ‘Happiness for Beginners’ Review: Ellie Kemper Leads a Sweet ...

   www.aol.com/happiness-beginners-review-ellie...

   Sitcom star Ellie Kemper (“Unbreakable Kimmy Schmidt,” “The Office”) gets the chance to subvert her usually chipper screen persona in “Happiness for Beginners,” writer-director Vicky ...