Problem: Background: Salvador Domingo Felipe Jacinto Dali i Domenech, Marquis of Dali de Pubol (11 May 1904 - 23 January 1989), known professionally as Salvador Dali ( Catalan: [s@lb@'do d@'li]; Spanish: [salba'dor da'li]), was a prominent Spanish surrealist born in Figueres, Catalonia, Spain. Dali was a skilled draftsman, best known for the striking and bizarre images in his surrealist work. His painterly skills are often attributed to the influence of Renaissance masters.
Context: Dali employed extensive symbolism in his work. For instance, the hallmark "melting watches" that first appear in The Persistence of Memory suggest Einstein's theory that time is relative and not fixed. The idea for clocks functioning symbolically in this way came to Dali when he was staring at a runny piece of Camembert cheese on a hot August day.  The elephant is also a recurring image in Dali's works. It appeared in his 1944 work Dream Caused by the Flight of a Bee Around a Pomegranate a Second Before Awakening. The elephants, inspired by Gian Lorenzo Bernini's sculpture base in Rome of an elephant carrying an ancient obelisk, are portrayed "with long, multijointed, almost invisible legs of desire" along with obelisks on their backs. Coupled with the image of their brittle legs, these encumbrances, noted for their phallic overtones, create a sense of phantom reality. "The elephant is a distortion in space", one analysis explains, "its spindly legs contrasting the idea of weightlessness with structure." "I am painting pictures which make me die for joy, I am creating with an absolute naturalness, without the slightest aesthetic concern, I am making things that inspire me with a profound emotion and I am trying to paint them honestly." --Salvador Dali, in Dawn Ades, Dali and Surrealism.  The egg is another common Daliesque image. He connects the egg to the prenatal and intrauterine, thus using it to symbolize hope and love; it appears in The Great Masturbator and The Metamorphosis of Narcissus. The Metamorphosis of Narcissus also symbolized death and petrification. There are also giant sculptures of eggs in various locations at Dali's house in Port Lligat as well as at the Dali Theatre and Museum in Figueres.  Various other animals appear throughout his work as well: ants point to death, decay, and immense sexual desire; the snail is connected to the human head (he saw a snail on a bicycle outside Freud's house when he first met Sigmund Freud); and locusts are a symbol of waste and fear.  Both Dali and his father enjoyed eating sea urchins, freshly caught in the sea near Cadaques. The radial symmetry of the sea urchin fascinated Dali, and he adapted its form to many art works. Other foods also appear throughout his work.
Question: What is the name of some of his work?
Answer: Dream Caused by the Flight of a Bee Around a Pomegranate a Second Before Awakening.

Problem: Background: Charles Lutwidge Dodgson (; 27 January 1832 - 14 January 1898), better known by his pen name Lewis Carroll, was an English writer, mathematician, logician, Anglican deacon, and photographer. His most famous writings are Alice's Adventures in Wonderland, its sequel Through the Looking-Glass, which includes the poem "Jabberwocky", and the poem The Hunting of the Snark - all examples of the genre of literary nonsense.
Context: In 1856, Dodgson took up the new art form of photography under the influence first of his uncle Skeffington Lutwidge, and later of his Oxford friend Reginald Southey. He soon excelled at the art and became a well-known gentleman-photographer, and he seems even to have toyed with the idea of making a living out of it in his very early years.  A study by Roger Taylor and Edward Wakeling exhaustively lists every surviving print, and Taylor calculates that just over half of his surviving work depicts young girls, though about 60% of his original photographic portfolio is now missing. Dodgson also made many studies of men, women, boys, and landscapes; his subjects also include skeletons, dolls, dogs, statues, paintings, and trees. His pictures of children were taken with a parent in attendance and many of the pictures were taken in the Liddell garden because natural sunlight was required for good exposures.  He also found photography to be a useful entree into higher social circles. During the most productive part of his career, he made portraits of notable sitters such as John Everett Millais, Ellen Terry, Dante Gabriel Rossetti, Julia Margaret Cameron, Michael Faraday, Lord Salisbury, and Alfred, Lord Tennyson.  By the time that Dodgson abruptly ceased photography (1880, over 24 years), he had established his own studio on the roof of Tom Quad, created around 3,000 images, and was an amateur master of the medium, though fewer than 1,000 images have survived time and deliberate destruction. He stopped taking photographs because keeping his studio working was too time-consuming. He used the wet collodion process; commercial photographers who started using the dry-plate process in the 1870s took pictures more quickly. Popular taste changed with the advent of Modernism, affecting the types of photographs that he produced.
Question: What kind of camera did he use?
Answer:
He used the wet collodion process;