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The name derives from ELektronen KAlkulator, and it weighed around 8 kg (18 lb). It is the first calculator in the world which includes the square root function. Later that same year were released the ELKA 22 (with a luminescent display) [22] [24] [25] and the ELKA 25, with an built-in printer.
The US Food and Drug Administration (FDA) defines the "food labeling ounce" as 30 ml (1.1 imp fl oz; 1.0 US fl oz), slightly larger than the 29.6 ml (1.04 imp fl oz; 1.00 US fl oz) fluid ounce. [37] Several Dutch units of measurement have been replaced with informal metric equivalents, including the ons or ounce.
The average breast weighs about 0.5 kilograms (1.1 lb). [97] Each breast contributes to about 4–5% of the body fat . [ 98 ] The density of fatty tissue is more or less equal to 0.9 g/cm 3 (0.52 oz/cu in) [ 99 ]
Food consumption has increased over time. Annual per capita consumption of cheese was 4 pounds (1.8 kg) in 1909; 32 pounds (15 kg) in 2000; the average person consumed 389 grams (13.7 oz) of carbohydrates daily in 1970; 490 grams (17 oz) in 2000; 41 pounds (19 kg) of fats and oils in 1909; 79 pounds (36 kg) in 2000.
Workers were paid in grain; a simple laborer might earn 5 + 1 ⁄ 2 sacks (200 kg or 400 lb) of grain per month, while a foreman might earn 7 + 1 ⁄ 2 sacks (250 kg or 550 lb). Prices were fixed across the country and recorded in lists to facilitate trading; for example a shirt cost five copper deben, while a cow cost 140 deben. [ 75 ]