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2. Hexagonal crystal family - Wikipedia

   en.wikipedia.org/wiki/Hexagonal_crystal_family

   In crystallography, the hexagonal crystal family is one of the six 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 ]

3. Crystal system - Wikipedia

   en.wikipedia.org/wiki/Crystal_system

   R = n 1 a 1 + n 2 a 2 + n 3 a 3, where n 1 , n 2 , and n 3 are integers and a 1 , a 2 , and a 3 are three non-coplanar vectors, called primitive vectors . These lattices are classified by the space group of the lattice itself, viewed as a collection of points; there are 14 Bravais lattices in three dimensions; each belongs to one lattice system ...

4. Trigonal trapezohedron - Wikipedia

   en.wikipedia.org/wiki/Trigonal_trapezohedron

   In geometry, a trigonal trapezohedron is a polyhedron with six congruent quadrilateral faces, which may be scalene or rhomboid. [1] [2] The variety with rhombus-shaped faces faces is a rhombohedron. [3] [4] An alternative name for the same shape is the trigonal deltohedron. [5]

5. College football games today: How to watch, stream Saturday's ...

   www.aol.com/sports/college-football-games-today...

   Marshall vs. Louisiana: 7:30 p.m. on ESPN, ESPN+, and Fubo. ... Watch live college football games with Fubo. We occasionally recommend interesting products and services. If you make a purchase by ...

6. College football schedule today: TV coverage, channels ...

   www.aol.com/college-football-schedule-today-tv...

   More: Watch select SEC football games live with Fubo (free trial) Other SEC matchups in Week 9 include South Carolina at Texas A&M; Mississippi State at Auburn; No. 20 Tennesssee at Kentucky; and ...

7. Rhombohedron - Wikipedia

   en.wikipedia.org/wiki/Rhombohedron

   The other coordinates can be obtained from vector addition [5] of the 3 direction vectors: e 1 + e 2, e 1 + e 3, e 2 + e 3, and e 1 + e 2 + e 3. The volume V {\displaystyle V} of a rhombohedron, in terms of its side length a {\displaystyle a} and its rhombic acute angle θ {\displaystyle \theta ~} , is a simplification of the volume of a ...

8. College Football Playoff championship bracket: Schedule and ...

   www.aol.com/college-football-playoff...

   Game 4: No. 8 Ohio State vs. No. 9 Tennessee, 8 p.m. (ABC/ESPN) Catch all the CFP games with Fubo The four quarterfinal games will be played on New Year's weekend at the site of four bowl games ...

9. ESPN 2 (Latin American TV channel) - Wikipedia

   en.wikipedia.org/wiki/ESPN_2_(Latin_American_TV...

   ESPN 2 is a Latin American pay-television channel based in Buenos Aires broadcasting for Spanish-speaking Latin American countries. Its programming is mostly football-, tennis- and rugby union-related. The channel was first launched in 1996 as ESPN 2 in Mexico and Central America and in 2002 as ESPN+ for South America. It consists on four ...