Then the maid storage to store as a result of the trial. By screaming and screaming speed measurement of a group of housewives by comparison with the differences using tools to cut.
The collected data from women's groups. To keep the results By tapping raw materials, and measured the speed of the cut of women's groups. By comparing and contrasting the tree by hand.
Then the data from the women's groups to collect as experiments. By tapping the raw material and measure the speed of the tapping. By comparing the difference with by hand cut.