Hugo Gernsback — American Inventor born on August 16, 1884, died on August 19, 1967

Hugo Gernsback, born Hugo Gernsbacher, was a Luxembourgish-American inventor, writer, editor, and magazine publisher, best known for publications including the first science fiction magazine. His contributions to the genre as publisher were so significant that, along with the novelists H. G. Wells and Jules Verne, he is sometimes called "The Father of Science Fiction". In his honour, annual awards presented at the World Science Fiction Convention are named the "Hugos"... (wikipedia)

What description of clouds and sunsets was to the old novelist, description of scientific apparatus and methods is to the modern Scientific Detective writer.
Let it be understood, in the first place, that a science fiction story must be an exposition of a scientific theme and it must be also a story.