TIERRA DEL FUEGO. WEATHER AND CLIMATE. In spite of its incendiary name, Tierra del Fuego -as well as the rest of Patagonia- has low temperatures and strong winds, sudden changes of weather, going from strong winds to complete calm, or from sunny to rainy conditions being very common.
Theories of Color Vision. 1  In 1802, Thomas Young proposed that all human vision occurred through the combination of sensitivity to red, green, and blue. This theory, modified by Hermann von Helmholtz in 1852, came to be known as the Young-Helmholtz or trichromatic (three-color) theory of color vision.
How the eye perceives color. To make things more complicated, no two eyes see things the same. The eye perceives color through the rods and cones. The color we see is a wavelength of light that our eyes interpret using these rods and cones. The rods see black and white and the cones perceive colors. Shade selection is best done with light most suited for our eyes.