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Functional residual capacity drops 18–20%, [9] typically falling from 1.7 to 1.35 litres, [citation needed] due to the compression of the diaphragm by the uterus. [citation needed] The compression also causes a decreased total lung capacity (TLC) by 5% [9] and decreased expiratory reserve volume by 20%. [9]
A litre is a cubic decimetre, which is the volume of a cube 10 centimetres × 10 centimetres × 10 centimetres (1 L ≡ 1 dm 3 ≡ 1000 cm 3). Hence 1 L ≡ 0.001 m 3 ≡ 1000 cm 3; and 1 m 3 (i.e. a cubic metre, which is the SI unit for volume) is exactly 1000 L.
The volume of a lake is a difficult quantity to measure. [1] Generally, the volume must be inferred from bathymetric data by integration . Lake volumes can also change dramatically over time and during the year, especially for salt lakes in arid climates.
wineglassful (2-1/2 fl oz or 1/2 gill or 1/2 teacupful or 1/4 tumblerful) dessertspoonful (1/4 fl oz or 2 fl dr and equal to 2 teaspoonful or 1/2 tablespoonful) teaspoonful (1/8 fl oz or 1 fl dr and also equal to 1/2 dessertspoonful or 1/4 tablespoonful)
[1] [2] For those who work in a hot climate, up to 16 litres (4.2 US gal) a day may be required. [1] About 1 to 2 billion people lack safe drinking water. [3] Water can carry vectors of disease and is a major cause of death and illness worldwide. [4] Developing countries are most affected by unsafe drinking water.
The chart below [6] lists the sizes of various wine bottles in multiples relating to a standard bottle of wine, which is 0.75 litres (0.20 US gal; 0.16 imp gal) (six 125 mL servings). The "wineglassful"—an official unit of the apothecaries' system of weights —is much smaller at 2.5 imp fl oz (71 mL ).
A standardized hogshead measured 48 inches (1.22 m) long and 30 inches (76.20 cm) in diameter at the head (at least 550 L or 121 imp gal or 145 US gal, depending on the width in the middle). Fully packed with tobacco, it weighed about 1,000 pounds (454 kg) [ citation needed ] .
Alternatively, and for greater numbers, one may say for 1 ⁄ 2 "one over two", for 5 ⁄ 8 "five over eight", and so on. This "over" form is also widely used in mathematics. Fractions together with an integer are read as follows: 1 + 1 ⁄ 2 is "one and a half" 6 + 1 ⁄ 4 is "six and a quarter" 7 + 5 ⁄ 8 is "seven and five eighths"