June 2013
Beginner to intermediate
905 pages
13h 15m
English
There is a famous story about English inventor Elias Howe, who created the first practical sewing machine using a lock-stitch design. The design came when he was struggling with the question of how to design an efficient sewing machine with a standard sewing needle, which has the hole in the tail end.
During a dream one night, he was in a jungle surrounded by cannibals carrying spears. They ordered him to invent the sewing machine by morning, or he would be eaten. In the morning, the cannibals surrounded him, prepared to carry out their threat. As they were thrusting the spears at him, up and down, he noticed something strange. Every spear had a hole in the tip. He woke up and had the answer to his dilemma. ...
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