This problem was solved by Dolph in 1946. He derives a method for obtaining weights for uniformly spaced linear arrays steered to broadside (=90 degrees). This is a popular weighting method because the sidelobe level can be specified, and the minimum possible null-null beamwidth is obtained.
â¢ A picture can be anything from a drawing to a painting, to an etching. â¢ All the images that we take without any knowledge in photography and which do not require our photographic talent are known as pictures. Related posts: 1  Difference Between Photo and Photograph. 2  Difference Between Photo and Image. 3  Difference Between Drawing and Painting. 4  Difference Between Artist and Designer.
From Oil to Egg Yolks. Same pigment, different binder. In a nutshell, most paints are made by mixing dry paint pigment together with a wet binder. The difference between the type of paints, for example, oil paint, acrylic paint or watercolour is simply due to the different type of binder used. So the binder could be oil, acrylic polymer or even egg yolk and itâs this â that gives each paint its characteristicsâ¦.