what is the principal behind the process of winnowing? (in one or two sentences)
Answers
Answer:
The light particles gets blown away and thus gets separated from the heavy substances. This is the principle that is used in the process of winnowing.
Answer:
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Disadvantages of Winnowing
Winnowing is defined as a method in which heavier components of the mixture are separated from the lighter substances with the help of wind but this process does not work for materials heavier than grains like stones.
Husk or dirt particles can be separated by winnowing method. It is used to separate the heavier and lighter components of a mixture by wind or by blowing air. In this method, the mixture of husk and seeds of grain are take in plate and are made to fall down from a height up to our shoulders.
Winnowing usually follows threshing in grain preparation. In its simplest form, it involves throwing the mixture into the air so that the wind blows away the lighter chaff, while the heavier grains fall back down for recovery.
What is the principle of threshing ?
Answer: Threshing is a method of separating grain from the stalk. The reaped crop is beaten so that the grain is separated from the stalk and grain's outer cover called husk or chaff is loosened.
Winnowing is based on the fact that if mixture is containing two components and one is lighter than another one, then both the components can be separated by blow of air. Mixture is allowed to fall from a height. Lighter component gets separated from heavier component due to wind.
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