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.
The cotton gin was not Eli Whitney's only contribution to the Industrial Revolution in America. He also started the first factory which used interchangable parts in manufacturing. With a growing free black population in northern and border states, 95 percent of the country's African American population was enslaved in 1820.