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For example, to make 100 mL of 50% alc/vol ethanol solution, water would be added to 50 mL of ethanol to make up exactly 100 mL. Whereas to make a 50% v/v ethanol solution, 50 mL of ethanol and 50 mL of water could be mixed but the resulting volume of solution will measure less than 100 mL due to the change of volume on mixing, and will contain ...
The 14.5×114mm (.57 calibre) is a heavy machine gun and anti-materiel rifle cartridge used by the Soviet Union, the former Warsaw Pact, modern Russia, and other countries.. It was originally developed for the PTRS and PTRD anti-tank rifles, and was later used as the basis for the KPV heavy machine gun that formed the basis of the ZPU series anti-aircraft guns that is also the main armament of ...
A high school student explains her engineering project to a judge in Sacramento, California, in 2015.. Science, technology, engineering, and mathematics (STEM) is an umbrella term used to group together the distinct but related technical disciplines of science, technology, engineering, and mathematics.
Defined as 1 ⁄ 100 of the amount of energy required to warm one gram of air-free water from 0 to 100 °C at standard atmospheric pressure. [b] International Steam Table calorie (1929) ≈ 4.1868 J ≈ 0.003 9683 BTU ≈ 1.1630 × 10 −6 kW⋅h ≈ 2.6132 × 10 19 eV Defined as 1 ⁄ 860 "international" watt hours = 180 ⁄ 43 "international ...
Modified dry whole milk, fortified with vitamin D.This is the original container from 1947, provided by the Ministry of Food in London, England.. While Marco Polo wrote of Mongolian Tatar troops in the time of Kublai Khan who carried sun-dried skimmed milk as "a kind of paste", [3] the first modern production process for dried milk was invented by the Russian doctor Osip Krichevsky in 1802. [4]
Two Tahitian Women (1899) by Paul Gauguin. The word "topless" usually refers to a woman whose breasts, including her areolas and nipples, are exposed to public view. It can describe a woman who appears, poses, or performs with her breasts exposed, such as a "topless model" or "topless dancer", or to an activity undertaken while not wearing a top, such as "topless sunbathing".
The first table lists countries by the percentage of their population with an income of less than $2.15 (the extreme poverty line), $3.65 and $6.85 US dollars a day in 2017 international PPP prices. The data is from the most recent year available from the World Bank API.
This is a list of U.S. states by total electricity generation, percent of generation that is renewable, total renewable generation, percent of total domestic renewable generation, [1] and carbon intensity in 2022. [2] The largest renewable electricity source was wind, which has exceeded hydro since 2019. [3]