Isaac Asimov was an American writer and professor of biochemistry at Boston University. He was known for his works of science fiction and popular science. Asimov was a prolific writer, and wrote or edited more than 500 books. He also wrote an estimated 90,000 letters and postcards.
Optical rotation, also known as polarization rotation or circular birefringence, is the rotation of the orientation of the plane of polarization about the optical axis of linearly polarized light as it travels through certain materials. Circular birefringence and circular dichroism are the manifestations of optical activity. Optical activity occurs only in chiral materials, those lacking microscopic mirror symmetry. Unlike other sources of birefringence which alter a beam's state of polarization, optical activity can be observed in fluids. This can include gases or solutions of chiral molecules such as sugars, molecules with helical secondary structure such as some proteins, and also chiral liquid crystals. It can also be observed in chiral solids such as certain crystals with a rotation between adjacent crystal planes or metamaterials.
The Three Laws of Robotics are a set of rules devised by science fiction author Isaac Asimov. The rules were introduced in his 1942 short story "Runaround", although they had been foreshadowed in some earlier stories. The Three Laws, quoted from the "Handbook of Robotics, 56th Edition, 2058 A.D.", are:
"Blind Alley" is a science fiction short story by American writer Isaac Asimov. It was first published in the March 1945 issue of Astounding Science Fiction, and later included in the collection The Early Asimov (1972).
The Black Widowers is a fictional men-only dining club created by Isaac Asimov for a series of sixty-six mystery stories that he started writing in 1971. Most of the stories were first published in Ellery Queen's Mystery Magazine, though a few first appeared in Fantasy & Science Fiction, Isaac Asimov's Science Fiction Magazine, and the various book collections into which the stories were eventually gathered.
Multivac is the name of a fictional supercomputer appearing in over a dozen science fiction stories by American writer Isaac Asimov. Asimov's depiction of Multivac, a mainframe computer accessible by terminal, originally by specialists using machine code and later by any user, and used for directing the global economy and humanity's development, has been seen as the defining conceptualization of the genre of computers for the period (1950s-1960s). Multivac has been described as the direct ancestor of HAL 9000.
"Marooned off Vesta" is a science fiction short story by American writer Isaac Asimov. It was the third story he wrote, and the first to be published. Written in July 1938 when Asimov was 18, it was rejected by Astounding Science Fiction in August, then accepted in October by Amazing Stories, appearing in the March 1939 issue. Asimov first included it in his 1968 story collection Asimov's Mysteries, and subsequently in the 1973 collection The Best of Isaac Asimov.
View from a Height is a collection of seventeen scientific essays by American writer and scientist Isaac Asimov. It was the second of a series of books collecting essays from The Magazine of Fantasy and Science Fiction, written between 1959 and 1962. It was first published by Doubleday & Company in 1963. The book received a review in Science Magazine. and The American Biology Teacher.
The Relativity of Wrong is a 1988 collection of seventeen essays on science by American writer and scientist Isaac Asimov. The book explores and contrasts the viewpoint that "all theories are proven wrong in time", arguing that there exist degrees of wrongness.
The first Golden Age of Science Fiction, often recognized in the United States as the period from 1938 to 1946, was an era during which the science fiction genre gained wide public attention and many classic science fiction stories were published. In the history of science fiction, the Golden Age follows the "pulp era" of the 1920s and 1930s, and precedes New Wave science fiction of the 1960s and 1970s. The 1950s are a transitional period in this scheme; however, Robert Silverberg, who came of age in the 1950s, saw that decade as the true Golden Age.
"Trends" is a science fiction short story by American writer Isaac Asimov. It was first published in the July 1939 issue of Astounding Science Fiction and was reprinted in Great Science Fiction Stories About the Moon (1967) and The Early Asimov (1972).
"Time Pussy" is an early science fiction short story by American writer Isaac Asimov.
para-Dimethylaminobenzaldehyde is an organic compound containing amine and aldehyde moieties which is used in Ehrlich's reagent and Kovac's reagent to test for indoles. The carbonyl group typically reacts with the electron rich 2-position of the indole but may also react at the C-3 or N-1 positions. It may also be used for determination of hydrazine.
The Sun Shines Bright is a collection of seventeen nonfiction science essays by American writer and scientist Isaac Asimov. It was the fifteenth of a series of books collecting essays from The Magazine of Fantasy and Science Fiction. It was first published by Doubleday & Company in 1981.
The Tragedy of the Moon is a collection of seventeen nonfiction science essays by American writer and scientist Isaac Asimov. It was the tenth of a series of books collecting essays from The Magazine of Fantasy and Science Fiction, these being first published between March 1972 and July 1973. It was first published by Doubleday & Company in 1973.
In astronomy, a thalassogen denotes a substance capable of forming a planetary ocean. Thalassogens are not necessarily life sustaining, although most interest has been in the context of extraterrestrial life.
The Asimov Chronicles: Fifty Years of Isaac Asimov is a collection of short science fiction stories, mystery stories and science essays by American writer Isaac Asimov, published by Dark Harvest in May 1989.
In a writing career spanning 53 years (1939–1992), science fiction and popular science author Isaac Asimov (1920–1992) wrote and published 40 novels, 383 short stories, over 280 non-fiction books, and edited about 147 others.
Isaac Asimov wrote three volumes of autobiography. In Memory Yet Green (1979) and In Joy Still Felt (1980) were a two-volume work, covering his life up to 1978. The third volume, I. Asimov: A Memoir (1994), published after his death, was not a sequel but a new work which covered his whole life. This third book won a Hugo Award.
Depending on the counting convention used, and including all titles, charts, and edited collections, there may be currently over 500 books in Isaac Asimov's bibliography— as well as his individual short stories, individual essays, and criticism. For his 100th, 200th, and 300th books, Asimov published Opus 100 (1969), Opus 200 (1979), and Opus 300 (1984), celebrating his writing.
