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The system can be traced back to the measuring systems of the Hindus [18]: B-9 and the ancient Egyptians, who subdivided the hekat (about 4.8 litres) into parts of 1 ⁄ 2, 1 ⁄ 4, 1 ⁄ 8, 1 ⁄ 16, 1 ⁄ 32, and 1 ⁄ 64 (1 ro, or mouthful, or about 14.5 ml), [19] and the hin similarly down to 1 ⁄ 32 (1 ro) using hieratic notation, [20] as ...
The contribution of the muscle to the specific heat of the body is approximately 47%, and the contribution of the fat and skin is approximately 24%. The specific heat of tissues range from ~0.7 kJ · kg−1 · °C−1 for tooth (enamel) to 4.2 kJ · kg−1 · °C−1 for eye (sclera). [13]
2 fl dram or 8 mL [13] 1 ⁄ 4: 2 dessertspoons = 1 tablespoon tablespoon (mouthful) tbsp. or T., rarely tbls. 1 ⁄ 2 fluid ounce or 20 mL [10] most common size: 5 fl dr or 20 mL [17] 4 fluidrachm or 16 mL, [11] or 15 mL [18] (actual range: 12.8–15.6 mL [12]) 1/2 fl oz or 15 mL [13] [15] 1 ⁄ 2: 2 tablespoons = 1 handful handful (fluid ...
Since 1982, STP has been defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of exactly 1 bar (100 kPa, 10 5 Pa). NIST uses a temperature of 20 °C (293.15 K, 68 °F) and an absolute pressure of 1 atm (14.696 psi, 101.325 kPa). [3] This standard is also called normal temperature and pressure (abbreviated as NTP).
1 Australian metric tablespoon = 20 ml = 1 1 / 3 international metric tablespoons = 2 metric dessert spoons, 1 metric dessert spoon = 10 ml each = 4 metric teaspoons, 1 metric teaspoon = 5 ml each ≈ 5.63 British imperial fluid drachms ≈ 0.7 British imperial fluid ounce ≈ 1.41 UK tablespoons ≈ 2.82 UK dessert spoons
English-speaking countries also used a system of units of fluid measure, or in modern terminology volume units, based on the apothecaries' system. Originally, the terms and symbols used to describe the volume measurements of liquids were the same as or similar to those used to describe weight measurements of solids [33] (for example, the pound by weight and the fluid pint were both referred to ...
This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.
The major minus pitch also works for inch-based threads, but you must first determine the pitch by looking at the number of treads per inch (TPI; for example, 1 ⁄ 20 = 0.050 and 1 ⁄ 13 ≈ 0.077), and your result will only land near a tap drill size (not directly on one).