In zZa laLa land verJion {()} ~/_ Z/+\|-|3 \/v |)ξ\/V ξY ξ zZζ ξY ξ {()} |\| IN THE Lala LanD verzion of wink Zthe DeVv Eye zZz Eye o N In the lala land version of the Devvere ShaVVeZvvere divizion of jointz the seamz seem lipped not fipped not zipped simply ripped Ritten with different characters in a different play poetizallz zZPakinz that iz EARED AZ EYE zZz Doth Be IN That ΓΣ IN That zZz "Knife edge" [ edit source ] The knife-edge effect or knife-edge diffraction is a truncation of a portion of the incident radiation that strikes a sharp well-defined obstacle, such as a mountain range or the wall of a building. The knife-edge effect is explained by Huygens–Fresnel principle , which states that a well-defined obstruction to an electromagnetic wave acts as a secondary source, and creates a new wavefront . This new wavefront propagates into the geometric shadow area of the obstacle. Knife-edge diffracti...
