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2. Multiplication table - Wikipedia

   en.wikipedia.org/wiki/Multiplication_table

   Multiplication table. In mathematics, a multiplication table (sometimes, less formally, a times table) is a mathematical table used to define a multiplication operation for an algebraic system. The decimal multiplication table was traditionally taught as an essential part of elementary arithmetic around the world, as it lays the foundation for ...

3. Q-system (geotechnical engineering) - Wikipedia

   en.wikipedia.org/wiki/Q-system_(Geotechnical...

   The Q-system for rock mass classification is developed by Barton, Lien, and Lunde. [1][2][3][4][5][6][7][8][9] It expresses the quality of the rock mass in the so-called Q-value, on which design are based and support recommendations for underground excavations. The Q-value is determined with. The first term RQD (Rock Quality Designation ...

4. Rock mass rating - Wikipedia

   en.wikipedia.org/wiki/Rock_mass_rating

   The rock mass rating (RMR) is a geomechanical classification system for rocks, developed by Z. T. Bieniawski between 1972 and 1973. [1] Since then it has undergone multiple modifications out of which, RMR89 [1] is commonly used. Recently RMR14 [2] has been proposed to improve the RMR performance by incorporating new experiences from tunnel ...

5. Permeability (materials science) - Wikipedia

   en.wikipedia.org/wiki/Permeability_(Materials...

   Permeability is a property of porous materials that is an indication of the ability for fluids (gas or liquid) to flow through them. Fluids can more easily flow through a material with high permeability than one with low permeability. [1] The permeability of a medium is related to the porosity, but also to the shapes of the pores in the medium ...

6. List of Schoolhouse Rock! episodes - Wikipedia

   en.wikipedia.org/wiki/List_of_Schoolhouse_Rock...

   1. 1. "Three is a Magic Number". Bob Dorough. Bob Dorough. January 6, 1973. (1973-01-06) A magician shows how magic the multiplication of 3 really is, including a family of three and a football team whose uniforms are numbered in threes. "Three Is a Magic Number" was the pilot episode and had originally aired in full as part of Curiosity Shop ...

7. Conneaut turned Slippery Rock standout Kyle Sheets awaits ...

   www.aol.com/conneaut-turned-slippery-rock...

   One team in particular, the Cleveland Browns, requested Sheets test at the pro day. Sheets ran the 40-yard dash in 4.52 seconds, had a 37-inch vertical jump, benched 225-pounds 16 times and ...