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
Transparent  yellow and transparent magenta mix into the secondary pigment color  red. The 3rd transparent primary pigment color is cyan, made from  the copper element, PB15. Transparent yellow and transparent cyan  make the secondary color green.ransparent cyan mixed with the the  transparent magenta color make the secondary color ultramarine  blue. Yellow, magenta and cyan are the primary pigment colors, red,  green and blue are the secondary pigment colors. Light uses the  opposite colors, the secondary pigment colors become the primary  light colors.