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Rice winnowing, Uttarakhand, India Winnowing in a village in Tamil Nadu, India Use of winnowing forks by ancient Egyptian agriculturalists. Winnowing is a process by which chaff is separated from grain. It can also be used to remove pests from stored grain. Winnowing usually follows threshing in grain preparation. In its simplest form, it ...
Separating remaining loose chaff from the grain is called "winnowing" – traditionally done by repeatedly tossing the grain up into a light wind, which gradually blows the lighter chaff away. This method typically uses a broad, plate-shaped basket or similar receptacle to hold and collect the winnowed grain as it falls back down.
Winnowing, used to separate the rice from hulls, is to put the whole rice into a pan and throw it into the air while the wind blows. The light hulls are blown away while the heavy rice fall back into the pan.
Chaffing and winnowing is a cryptographic technique to achieve confidentiality without using encryption when sending data over an insecure channel. The name is derived from agriculture: after grain has been harvested and threshed , it remains mixed together with inedible fibrous chaff .
By the addition of rakes, or shakers, and two pairs of fanners, all driven by the same machinery, the different processes of thrashing, shaking, and winnowing are now all at once performed, and the grain immediately prepared for the public market. When it is added, that the quantity of grain gained from the superior powers of the machine is ...
Fengshanche (Chinese: 風扇車 [1]; pinyin: fēngshànchē; lit. 'wind fan vehicle') was a winnowing machine that was used in ancient China to separate the grain from the chaff or seed casings after harvest.
At first, artesans from Cantalejo travelled with large carts loaded with selected threshing boards, winnowing bellows, grain measures (of different traditional dry units: celemín is a wooden case with 4,6 L, cuartilla has 14 L, and fanega equivalent to 55.5 L...) and other implements for threshing or winnowing, which they peddled from town to ...
Russian women using a hand powered winnowing machine in a barn. Painting by K.V. Lebedev, The Floor, 1894 Threshing and bagging grain in Germany in 1695 Threshing (thrashing) was originally "to tramp or stamp heavily with the feet" and was later applied to the act of separating out grain by the feet of people or oxen and still later with the ...