The Simpsons includes a large array of supporting characters: co-workers, teachers, family friends, extended relatives, townspeople, local celebrities, fictional characters within the show, and even animals. The writers originally intended many of these characters as one-time jokes or for fulfilling needed functions in the town. A number of them have gained expanded roles and have subsequently starred in their own episodes. According to the creator of The Simpsons, Matt Groening, the show adopted the concept of a large supporting cast from the Canadian sketch comedy show Second City Television.
Agnes Skinner (voiced by Tress MacNeille) is the mother of Principal Skinner and first appeared in the first season episode "The Crepes of Wrath" as an old woman who embarrassingly calls her son "Spanky". However, as episodes progressed, the character turned bitter. She is very controlling of her son and often treats him as if he is a child. She hates Edna Krabappel due to her son's feelings for the other woman. Agnes has married four times. Several Springfield residents (including the Simpsons) are afraid of her. When "the real Seymour Skinner" arrives in Springfield, Agnes ends up rejecting him in part because he stands up to her, but also because unlike Skinner/Tamzarian, her biological son is independent and doesn't need her anymore, while Skinner immediately reverts to a good-for-nothing without her.
An opal is a gemstone.
Opal may also refer to:
Chrysoritis, commonly called Opals or Coppers, is a genus of butterflies in the Lycaenidae family found mainly in southern Africa and particularly South Africa.
Species of the genus include:
The chrysaor species-group:
The chrysantas species-group:
The oreas species-group:
The pyroeis species-group:
Orb may refer to:
Charles Henry Dessalines d'Orbigny was a French botanist and geologist specializing in the Tertiary of France. He was the younger brother of French naturalist and South American explorer, Alcide d'Orbigny. At the National Museum of Natural History in Paris, d'Orbigny identified many of the flowering plant species returned to France from his brother's natural history collecting journeys through South America.
In physics, backscatter (or backscattering) is the reflection of waves, particles, or signals back to the direction from which they came. It is a diffuse reflection due to scattering, as opposed to specular reflection like a mirror. Backscattering has important applications in astronomy, photography and medical ultrasonography.
Backscattering can occur in quite different physical situations, where the incoming waves or particles are deflected from their original direction by different mechanisms: