Question

During washing of clothes, why people use different methods like beating the clothes on a stone, beating with a paddle or scrub with a brush or rock n roll in washing machines?

Answer 1

THey do that to dry the clothes and get rid of germs

Answer 2

It is necessary to beat the cloth on stone or beat it with the paddle Scrub it with a brush and mixture is agitated in the washing machine because the dirt particles are trapped in the clothes and to get them out we put the clothes in a water contain soap so the long hydrocarbons part of the missels present in soapy water are attached to the dirt particles and the ionic part of the missels are remain attached to the water. Then we beat the cloth on stone and Scrub it with a brush so that the long hydrocarbons came out with with the stubborn dirt particles.

Hope it Helps...