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.
So, while historians have accepted the theory that Eli Whitney's cotton gin idea came from an African slave, this claim remains impossible to prove. The Cotton Gin patent # is 72X. Reference: According to Portia James, in The Real McCoy: African-American Invention and Innovation, 1619-1930.