Observation Provides Data on Problems, but Cannot Solve Them

A good illustration of the scientific method, in which observations are made for the purpose of identifying difficulties and analyzing situations, is the procedure followed by a physician when he makes a diagnosis. A doctor does not write a prescription solely on the basis of what his patient tells him; he uses instruments to take the patient’s temperature to examine his feces, and to analyze his urine. It is only after he has made these examinations that he writes his prescription; without...

 Newton on Why There is a God

As to your first query, it seems to me that if the matter of our sun and planets and all the matter of the universe were evenly scattered throughout all the heavens, and every particle had an innate gravity toward all the rest, and the whole space throughout which this matter was scattered was but finite, the matter on the outside of this space would, by its gravity, tend toward all the matter on the inside and, by consequence, fall down into the middle of the whole space and there compose on...

 Intelligent Plant Life

On certain small planets, drenched with light and heat from a near or a great sun, evolution took a very different course from that with which we are familiar. The vegetable and animal functions were not separated into distinct organic types. Every organism was at once animal and vegetable. Many species, of course, developed predatory habits, and special organs of offense, such as muscular boughs as strong as pythons for constriction, or talons, horns, and formidable serrated pincers. In the...

 Science Fiction Gave Literature New Frontiers

The shift in subject matter from westerns to science fiction was probably already underway when Burroughs began writing. The frontier, which had been such a key feature of American popular fiction, was rapidly disappearing, and writers had begun looking for new frontiers—hence, the increasing number of stories about lost civilizations in unexplored parts of the world. But even the unexplored parts of the world were shrinking rapidly, and as new technologies, such as aircraft and rocketry, b...