Since the start of the coronavirus epidemic, the first recommended hygiene measure is to wash your hands regularly with soap … The invention of soap has made it possible to extend the life expectancy of many French people and has brought cleanliness to households, as well as the possibility of better fighting against diseases of all kinds. Why does the soap bubble? The existence of soap bubbles is linked to the properties of “soap molecules”, the surfactants, but not only: to make soap bubbles, you also need air! … The bubble bursts when this layer of water evaporates or moves under the effect of its weight. A soap bubble is water mixed with soap, which traps air. … In the bubble, the water slides from top to bottom. The top layer gets thinner and thinner. The bubble eventually bursts. the consumption of Marseille soap is estimated at 20,000 t / year out of a production of 32,000 t. Every second we consume 3.3 kilos of soap in France (counter), or 104,000 tons of soap per year and 1.6 kilos per inhabitant.
More infos about the wordhealth : Health, according to the World Health Organization, is "a state of complete physical, mental and social well-being and not merely the absence of disease and infirmity." A variety of definitions have been used for different purposes over time. Health can be promoted by encouraging healthful activities, such as regular physical exercise and adequate sleep, and by reducing or avoiding unhealthful activities or situations, such as smoking or excessive stress. Some factors affecting health are due.. Learn more about: health (extract from your favorite online encyclopedia)
More infos about the wordscience : Science (from Latin scientia 'knowledge') is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical.. Learn more about : science (extract from your favorite online encyclopedia)
More infos about the wordsoap : Soap is a salt of a fatty acid used in a variety of cleansing and lubricating products. In a domestic setting, soaps are surfactants usually used for washing, bathing, and other types of housekeeping. In industrial settings, soaps are used as thickeners, components of some lubricants, and precursors to catalysts.
When used for cleaning, soap solubilizes particles and grime, which can then be separated from the article being cleaned. In hand washing, as a surfactant, when lathered with a little.. Learn more about : soap (extract from your favorite online encyclopedia)
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