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Cyanogen is the chemical compound with the formula (C N) 2. The simplest stable carbon nitride, it is a colorless and highly toxic gas with a pungent odor. The molecule is a pseudohalogen. Cyanogen molecules consist of two CN groups ‒ analogous to diatomic halogen molecules, such as Cl 2, but far less oxidizing.
Fact and Fancy is a collection of seventeen scientific essays by American writer and scientist Isaac Asimov. It was the first in a series of books collecting his essays from The Magazine of Fantasy and Science Fiction, and Asimov's second book of science essays altogether (after Only a Trillion). Doubleday & Company first published it in March ...
In chemistry, the empirical formula of a chemical compound is the simplest whole number ratio of atoms present in a compound. [1] A simple example of this concept is that the empirical formula of sulfur monoxide , or SO, is simply SO, as is the empirical formula of disulfur dioxide , S 2 O 2 .
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The Encyclopedia of Science Fiction points to A Plunge into Space (Robert Cromie, 1890) [9] as having a subplot very similar to "The Cold Equations". [10] " A Weighty Decision" ( Al Feldstein in Weird Science , 1952) [ 11 ] and the story "Precedent" ( E. C. Tubb in New Worlds , 1952) [ 12 ] also have been cited as potential inspirations.
Theoretical physics consists of several different approaches. In this regard, theoretical particle physics forms a good example. For instance: "phenomenologists" might employ empirical formulas and heuristics to agree with experimental results, often without deep physical understanding.
In Search of Wonder: Essays on Modern Science Fiction is a collection of critical essays by American writer Damon Knight. Most of the material in the original version of the book was originally published between 1952 and 1955 in various science fiction magazines including Infinity Science Fiction , Original SF Stories , and Future SF .
On the Writing of Speculative Fiction" is an essay by American science fiction writer Robert A. Heinlein. It was first published in 1947, also appearing in Writing Science Fiction & Fantasy: 20 Dynamic Essays By the Field's Top Professionals in 1993, and The Nonfiction of Robert Heinlein: Volume I in 2011.