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.
So, you need green light to stimulate your green cones, red to stimulate the red cones and blue to stimulate the blue ones; all three colors are needed to make white! Incidentally, this is why red and black paints on cars tend to wear out sooner than lighter and bluer colored paints.