Science in Ancient Egypt Mathematics and Medicine. The emergence of Egyptian mathematics Egyptian mathematics arose from the needs of office work and business. – presentation
Presentation on theme: “Science in Ancient Egypt Mathematics and Medicine. The emergence of Egyptian mathematics Egyptian mathematics arose from the needs of office work and household.” — Transcript:
1 Science in Ancient Egypt Mathematics and Medicine
2 the Emergence of Egyptian mathematics Egyptian mathematics arose from the needs of office work and economic life. The Egyptians used the non-positional decimal counting system, which used special characters to indicate numbers 1, 10, 100, etc. Egyptian mathematics arose from the needs of office work and economic life. The Egyptians used the non-positional decimal counting system, which used special characters to indicate numbers 1, 10, 100, etc.
3 Operated only simple fractions with numerator 1. Operated only simple fractions with numerator 1. From the Middle Kingdom witnessed the repositories, which offer solutions. From the Middle Kingdom witnessed the repositories, which offer solutions. Most of the problems arose from practical needs. Most of the problems arose from practical needs. Continue reading
To begin, let, synthetic vinegar was invented by the German scientist K. Hoffmann in 1898. However, this product, only natural, was known to ancient Slavs. In “Domostroi” stated his recipe: “After the wort syrup to make sour four weeks, or longer, on the stove, and put in the vinegar honey molasses with gribenko or more, Yes peas a little bit of wheat to add a little, and also put cranberries and oak bark, and sometimes iron.”
The most acidic
Avicenna wrote that the vinegar in the East they make from grapes, raisins, sugar, dates, honey, rice and other products. This natural elixir is a storehouse of vitamins, mineral salts, trace elements. I must say that the vinegar is the acid. It was used by the ancient Greeks, and the word in Greek means “sour”. He was a dear and valuable product: even Cleopatra prepared a special drink of vinegar, dissolving pearls in it and thus obtaining the elixir of youth.
So what is vinegar? It is the result of fermentation lactic acid bacteria and depending on the raw material is alcohol, wine, fruit, beer, honey. In stores we see vinegar in 3-, 6 – and 9% interest, this means that vinegar in 100g contains 3 g of uksousnokisloy, double vinegar — 6 g, triple — 9 g acid.
Earlier alchemists vinegar was extracted by dry distillation of wood (bark, branches, sawdust). Now, in addition to acetic acid, you get wine, lactic, malic, citric and other acids. So, tartaric acid is produced from special salt deposited on the surface of wine barrels, milk — sugar waste molasses, lemon from. sugar and synthetic malic is from coal. Continue reading
What is aloe Vera?
In scientific classification, aloe belongs to the succulent perennial plants monocots stargazing class centuriesago family. The above genus includes tree, shrub and grass installation in dense fleshy leaves, collected in typical outlets. The edges of the leaves can be topped with cilia, spines, or teeth, as well as classical smooth structure.
At the moment the world has about five hundred different species of aloe, in Russia, mainly distributed real aloe classic, “tiger” analog and a tree (called the “century plant”). Initially, aloe Vera spread throughout the world from the African continent and the Arabian Peninsula, some species have existed in the Canary Islands.
In the composition of plants includes quite a large number of substances is a powerful natural antioxidant, allantoin, beta carotene and vitamin complexes, and polysaccharides, glycosides, enzymes, fitontsidy, sterols and other substances that have a biologically active nature.
Aloe is one of the first plants in the world, which began to be used for medicinal purposes. According to some, the first medical written sources, Dating back to a thousand BC, contain recipes for concoctions and compresses the above plant.
At the moment, traditional medicine knows hundreds of ways to use aloe Vera pulp and juice, though both as external and internal funds.
The plant has a pronounced healing properties, helps to tighten wounds and cuts. In addition, aloe Vera pulp is used for the normalization of the gastrointestinal system and in the treatment of duodenal ulcers and as a restorative means after the ulcer. Continue reading