Here's a static version of the Cat-Camel: 1  Lace your fingers together and turn your palms to face outward in front of you. 2  Reach your arms as far as you can, curving your back and shoulders forward. 3  Hold for about 10 seconds.  Now release your fingers, and grab your wrists or fingers behind your back.
Eli Whitney had  two younger brothers, and also a younger sister.  His brothers were named Josiah and Ben, and his sister was  Elizabeth.
He invented a machine that could make muskets with interchangeable parts. Eli Whitney died on January 8th, 1825. He left behind his four young children. His three nephews continued his work. One of his nephews invented the rock crusher. Eli Whitney was very successful in life.