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Hippocrates believed that water had to be clean and pure. Rainwater was the best water, but had to be boiled and strained before drinking to get rid of the "bad smell" and to avoid hoarseness of the voice. [3] [4] He designed a crude water filter to “purify” the water he used for his patients. Later known as the “Hippocratic sleeve ...
Early human habitations were often built next to water sources. Rivers would often serve as a crude form of natural sewage disposal. Over the millennia, technology has dramatically increased the distances across which water can be relocated. Furthermore, treatment processes to purify drinking water and to treat wastewater have been improved.
The link between water and disease was still not well established and in 1873 the president of the New York board of health declared that "although rivers are great natural sewers, and receive the drainage of towns and cities the natural process of purification, in most cases destroys the offensive bodies derived from sewer and renders them ...
Many household water filters and fish tanks use activated carbon filters to purify water. Household filters for drinking water sometimes contain silver as metallic silver nanoparticle . If water is held in the carbon block for longer periods, microorganisms can grow inside which results in fouling and contamination.
Here we bring new water from the well so clear, For to worship God with, this happy New Year. Chorus (after each verse): Sing levy-dew, sing levy-dew, the water and the wine, The seven bright gold wires and the bugles that do shine. Sing reign of Fair Maid, with gold upon her toe; Open you the West Door and turn the Old Year go.
A 100,000-year-old ochre-processing workshop was found at Blombos Cave in South Africa. It indicates that early humans had an elementary knowledge of mineral processing. Paintings drawn by early humans consisting of early humans mixing animal blood with other liquids found on cave walls also indicate a small knowledge of chemistry. [3] [4]
In early human history, although the energy and other resource demands of nomadic hunter-gatherers were small, the use of fire and desire for specific foods may have altered the natural composition of plant and animal communities. [4] Between 8,000 and 10,000 years ago, agriculture emerged in various regions of the world. [14]
A German version of the song did not translate the original lyrics, but rather rewrote them entirely, under the title "Sie hieß Mary-Ann". This was released in several versions on German record labels in 1956 and 1957, most notably by Ralf Bendix , and Freddy Quinn on his album "Freddy" recorded on Polydor .