Amount: 1 inch pound force (in lbf) of energy. Equals: 0.11 joules (J) in energy. Converting inch pound force to joules value in the energy units scale. TOGGLE : from joules into inches pound force in the other way around.
Sfumato and Leonardo da Vinci. Sfumato refers to the subtle gradation of tone which was used to obscure sharp edges and create a synergy between lights and shadows in a painting. As Ernst Gombrich, one of the twentieth-centuries most famous art historians, explains: [t]his is Leonardo's famous invention â¦ the blurred outline and mellowed colors that allow one form to merge with another and always leave something to our imagination.
Gesso is very similar to white acrylic paint, only thinner. It dries hard, making the surface more stiff. Gesso prepares (or primes) the surface for painting, making the surface slightly textured and ready to accept acrylic paint. Without gesso, the paint would soak into the weave of the canvas.