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Introduction
Traveling on
water has been important for long periods of time because It takes less
force move the same amount of things. This is especially true on rivers
when a boat can drift downriver with a heavy load, yet not requiring
any force from you. Many people used this type of travel to float logs
down river which made the logging business very successful. Nowadays if
you step onto a dock in a harbor you can see many giant ships that are
floating on the water, and you might wonder why they are floating. It
is because the displace or move tons of water. As long as the water
they displace is more than the weight of the ship, it will always float.
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