1 Preheat oven to 350 degrees F (175 degrees C). 2  Grease and flour one 9x13 inch baking pan. 3  Sift flour and baking powder together and set aside. 4  Cream butter or margarine and the 1 cup sugar together until fluffy. 5  Add eggs and the 1/2 teaspoon vanilla extract; beat well.irections. 1  Preheat oven to 350 degrees F (175 degrees C). 2  Grease and flour one 9x13 inch baking pan. 3  Sift flour and baking powder together and set aside. 4  Cream butter or margarine and the 1 cup sugar together until fluffy.
Quick Answer. The sense of sight is important as it helps compensate for a loss of other senses, enables the differences between good and bad food to be distinguished, helps create impressions and find partners and helps ensure safety by perceiving signs of danger.
The reason visible light transmission is important that the amount of light determines how comfortable your eyes are when looking through sunglass lenses but more important than comfort is the amount of glare that reaches your eyes. Glare is particularly problematic when on or near the water, sand or snow.