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.
the web color cyan shown at right is a secondary color in the rgb color model which uses combinations of red green and blue light to create all the colors on computer and television displays in x11 colors this color is called both cyan and aqua in the html color list this same color is called aqua
We know that the primary colors are red, yellow and blue, and that the combination of any two of these gives a secondary color. The eye perceives neither color, but orange,--the secondary color. secondary color. A color produced by mixing two additive primary colors in equal proportions. The secondary colors are cyan (a mixture of blue and green), magenta (a mixture of blue and red), and yellow (a mixture of green and red). Each secondary color is also the complementary color (or complement) of the primary color whose wavelength it does not contain. Thus cyan is the complement of red, magenta is the complement of green, and yellow is the complement of blue.