Color Wheel (Moses Harris, Moses Harris's chart was the first full-color circle. The 18 colors of his wheel were derived from what he then called the three 'primitive' colors: red, yellow and blue. At the center of the wheel, Harris showed that black
Lisbon-born sculptor David Oliveira creates delicate figurative sculptures using wire that’s formed to look like manically drawn ink sketches. Some pieces are hung by invisible filament creating the illusion of hovering in place.