This building is 100 feet long. It is used to make rope. The
process involves starting with twine, and several steps involving twisting. Look up
the process. Measure a piece of string, then twist three strings of the same
length together, and measure again. How much shorter is the twisted string than
the straight string? When the rope-makers worked, they started with twine
spread the length of the 100-foot building.
When they completed the twisting, the rope was 60 feet long. Measure out
100 feet (outside!) then 60 feet. Could you lift a piece of rope 60 feet long?
Speaking of weight, we learned of a ship called a sand boat.
Fifty-pound bags of sand were used to keep the boat balanced. When you are
sailing a small boat, you must move from one side to the other according to the
direction of the wind and the sail. On this boat, the men moved 50-pound bags
of sand from one side to the other each time the boat changed direction!
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