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2. Quart - Wikipedia

   en.wikipedia.org/wiki/Quart

   The reputed quart was a measure equal to two-thirds of an imperial quart (or one-sixth of an imperial gallon), at about 0.7577 liters, which is very close to one US fifth (0.757 liters). The reputed quart was previously recognized as a standard size of wine bottle in the United Kingdom, and is only about 1% larger than the current standard wine ...

3. Calcium aluminate cements - Wikipedia

   en.wikipedia.org/wiki/Calcium_aluminate_cements

   CAC cement invented in 1908 by Bied [2] is sulfate-free and hardens to give mainly hydrated calcium aluminates or carboaluminates (AFm phases: Aluminium Ferrite mono-substituted phases), sometimes accompanied with C–S–H as a minor component, while Ca(OH) 2 (portlandite) is absent. [5]

4. Primer (paint) - Wikipedia

   en.wikipedia.org/wiki/Primer_(paint)

   Primer reduces the number of paint coats needed for good coverage and even color. A thin layer of paint may still be permeable to water. Water can permeate into the wood and cause warping, mildew, or dry rot. Primer improves the waterproofing of the finish. [4] Primers are not used as part of a wood stain treatment because they obscure the wood ...

5. Primer (molecular biology) - Wikipedia

   en.wikipedia.org/wiki/Primer_(molecular_biology)

   The free NCBI tool Primer-BLAST integrates primer design and BLAST search into one application, [6] as do commercial software products such as ePrime and Beacon Designer. Computer simulations of theoretical PCR results ( Electronic PCR ) may be performed to assist in primer design by giving melting and annealing temperatures, etc. [ 7 ]

6. Quartz - Wikipedia

   en.wikipedia.org/wiki/Quartz

   Quartz is a hard, crystalline mineral composed of silica (silicon dioxide).The atoms are linked in a continuous framework of SiO 4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO 2.

7. Friction primer - Wikipedia

   en.wikipedia.org/wiki/Friction_primer

   Early friction primer tube photographed in Heinola, Finland in 2015. The wire loop may be attached to a lanyard.A sharp tug on the lanyard pulls the roughened slider wire through the priming mixture which responds like a match, igniting the gunpowder in the tube through the touch hole into the main powder charge within the chamber of the cannon.