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.
Some differences is that: Photography can form a picture in seconds, where as a painting can take months to create. Also, photography is a cheaper, and also, you can make sooo many images of the same photo via the negatives. Paintings have only One, unless the artist is bothered to paint the exact same painiting! lol.
In Photography, refraction has the same rules as in physics. Well, photography is all about engineering and physics.Refraction encompasses the situation where light goes through a semi transparent object and the photons are slightly drifted from its normal course because the surface they hit separates them.efraction occurs because waves move at different speeds in different bodies. Because a wave hits the other medium at an angle, part of the wave changes speed earlier than the â¦ rest, turning the waves. this is most obvious with light waves in water, but it happens with all types of waves in any change of medium.