The Cotton Gin. Eli Whitney and the Need for an Invention. As Eli Whitney left New England and headed South in 1792, he had no idea that within the next seven months he would invent a machine that would profoundly alter the course of American history.A recent graduate of Yale, Whitney had given some thought to becoming a lawyer.li Whitney and the Need for an Invention. As Eli Whitney left New England and headed South in 1792, he had no idea that within the next seven months he would invent a machine that would profoundly alter the course of American history. A recent graduate of Yale, Whitney had given some thought to becoming a lawyer.
red and green combine to make yellow green and blue make cyan blue and red make magenta the combination of red green and blue in full intensity makes white white light is created when all colors of the em spectrum converge in full intensity
This box shows the color blue-green. Blue-green is a color that is a deep tone of cyan. On the older red-yellow-blue pigment color wheel (in which red, yellow, and blue were called the primary colors and orange, green, and violet were called the secondary colors), blue-green was a third color between blue and green.lue-green is a color that is a deep tone of cyan.