Washing Machine as an invention of manking

1.

2.

Primitive washing machines were a
wooden box with a movable frame.
The first washing machine launched
into mass production was created in
1907 [source not specified 197 days]
William Blackstone, she had a
manual drive, there is also an
opinion that Nathaniel Briggs made
the first one

3.

what is the washing
machine designed for?
Washing machines are designed for
mechanization and automation of
one of the most labor-intensive
manual labor operations in the
household - laundry. The essence
of the washing process is the
physico-chemical and mechanical
action of a detergent solution on
the laundry, which consists of two
components: water and detergent
(detergent)

4.

what is the use of a
washing machine
A washing machine is a technique
that is difficult to do without in any
home. It is not needed only by
those who still like to wash by
hand. Such devices can not only
wash, but also rinse and wring
clothes. They have a very simple
principle of operation, because all
you have to do is throw dirty
clothes into them, fill in the
washing powder and choose the
right program for washing. After
completing the process, pick up
clean and semi-dry things and go to
rest.