* Robert A. Heinlein's short story " By His Bootstraps "

The ability of the individual to create himself is explored in stories such as I Will Fear No Evil, "— All You Zombies —", and By His Bootstraps.

* Robert A. Heinlein's By His Bootstraps ( 1941 ) features a plot in which a man interacts with different older versions of himself that travel by way of a " Time Gate ", with all the interactions revisited later in the story from the perspective of the now-older man, everything being tied together in a completely self-consistent way.

nl: By His Bootstraps

fi: By His Bootstraps

In another of his stories, " By His Bootstraps ", the protagonist in a series of twists, interacts with future versions of himself.

* " By His Bootstraps " ( 1941 ) and "'— All You Zombies —'" ( 1959 ), both short stories by Robert A. Heinlein with contorted and finally close-looped timelines.

By `` image '' is meant not only a visual presentation, but also remembered sensations of any of the five senses plus the feelings which are immediately conjoined therewith.

By virtue of his self-reliance, his individualism and his freedom from external restraint, the private eye is a perfect embodiment of the middle class conception of liberty, which amounts to doing what you please and let the devil take the hindmost.

By upholding his own personal code of behavior, the private detective has placed himself in opposition to a society whose fabric is permeated with crime and corruption.

By our policy the West was -- is -- split.

By law this is 75% for the Virgin Islands, Guam and Puerto Rico.

By law this is 70% for the Virgin Islands, Guam and Puerto Rico.

By this standard, it is determined that where two stations operating on the same frequency are involved, objectionable interference from station A exists at any point within the service area of station B where station A's signal is of an intensity one-twentieth or more of the strength of station B's signal at that point.

By this time Henri's entire chest-back-lat-shoulder area is pumped-up to almost bursting point, and Claude takes time to do a bit more pectoral-front deltoid shaping work.

By this scheme, pulling one signal to clear locks all the other switch and signal levers in safe positions until the first signal is again restored to normal.

By lifting the seat upwards a little, the weight is taken off the neck and the back is kept rounded.

By the middle of the summer, many of the larvae apparently receive such a good diet that it is `` optimal '', and it is then that young queens begin to appear.

By Theorem 10, D is a diagonalizable operator which we shall call the diagonalizable part of T.

By ( 1 ), the image of this pencil is a ruled surface of order Af which is met by the plane of the pencil in a curve, C, of order Af.

By means of this social control, deviance is either eliminated or somehow made compatible with the function of the social group.

By the time the child first attacks the actual problem of reading, he is completely familiar and at ease with all of the elements of words.

By this time there is little doubt but what election plans were complete.

By the very nature of the situation, it is the union which has been able to select the time and place to bring pressure upon management.

By all means the most important distinction is that between those total-cost apportionments which superimpose a distribution of admittedly unallocable cost residues on estimates of incremental or marginal costs, and those other apportionments which recognize no difference between true cost allocation and mere total-cost distribution.

By airline from Concord to Burlington is a distance of about 150 miles, counting a slight deviation for the stop at either Barre or Montpelier.

By using instruments of gradually increasing size, the vagina is gently, and with minimum pain at each stage, taught to yield to an object of the appropriate shape.

By means of charts showing wave-travel times and depths in the ocean at various locations, it is possible to estimate the rate of approach and probable time of arrival at Hawaii of a tsunami getting under way at any spot in the Pacific.

By making comparisons across cultural traditions ( time-based ) and cultural regions ( space-based ), anthropologists have developed various kinds of comparative method, a central part of their science.

By the 1980s, several independent publishers, such as Pacific, Eclipse, First, Comico, and Fantagraphics had started releasing a wide range of styles and formats — from color superhero, detective, and science fiction comic books to black-and-white magazine-format stories of Latin American magical realism.

By the mid-1960s, several fans active in science fiction and comics fandom recognized a shared interest in rock music, and the rock fanzine was born.

By the 1960s science fiction was combining sensationalism with political and technological critiques of society.

By the 1970s the science fiction community was confronting questions of feminism and sexism within science fiction culture itself.

By 1952, at the age of 55, Capra effectively retired from Hollywood filmmaking and spent his later years working with Caltech, his alma mater, to produce educational films on science topics.

By the mid-18th century the " Aufklärung " ( The Enlightenment ) had transformed German high culture in music, philosophy, science and literature.

By the 1830s mathematics, physics, chemistry, and biology had emerged with world class science, led by Alexander von Humboldt ( 1769 – 1859 ) in natural science and Carl Friedrich Gauss ( 1777 – 1855 ) in mathematics.

By analogy with the ancient Greek term for agriculture, geoponics, the science of cultivating the earth, Gericke coined the term hydroponics in 1937 ( although he asserts that the term was suggested by W. A. Setchell, of the University of California ) for the culture of plants in water ( from the Greek hydro -, " water ", and ponos, " labour ").

By 1997, the phrase had entered the legal lexicon as seen in an opinion by Supreme Court of the United States Justice John Paul Stevens, ' An example of " junk science " that should be excluded under the Daubert standard as too unreliable would be the testimony of a phrenologist who would purport to prove a defendant ’ s future dangerousness based on the contours of the defendant ’ s skull.

The award is named for Alice B. Sheldon, who wrote under the pseudonym James Tiptree, Jr. By choosing a masculine nom de plume, having her stories accepted under that name and winning awards with them, Sheldon helped demonstrate that the division between male and female science fiction writing was illusory.

Déjacque wrote that: ‘ By government I understand all delegation, all power outside the people ,’ for which must be substituted, in a process whereby politics is transcended, the ‘ people in direct possession of their sovereignty ,’ or the ‘ organised commune .’ For Déjacque, the communist anarchist utopia would fulfil the function of inciting each proletarian to explore his or her own human potentialities, in addition to correcting the ignorance of the proletarians concerning ‘ social science .’"

By the end of the 18th century, it had begun to be called " science " to distinguish it from philosophy.

The lyrics up to this point ( most of them written by Peart ) were heavily influenced by classical poetry, fantasy literature, science fiction, and the writings of novelist Ayn Rand, as exhibited most prominently by their 1975 song " Anthem " from Fly By Night and a specifically acknowledged derivation in 2112 ( 1976 ).

By the 1970s, critics within the field such as Terry Carr and Damon Knight were using sci-fi to distinguish hack-work from serious science fiction, and around 1978, Susan Wood and others introduced the pronunciation " skiffy ".

By the twentieth century, the modern notion of science as a special brand of information about the world, practiced by a distinct group and pursued through a unique method, was essentially in place.

By the time it ceased regular publication it had backed away from the science fiction genre itself, styling itself as an experimental literary journal.

By then, a neo-Campbellian revival of hard science fiction after 1982 at the hands of David Brin, Gregory Benford, Greg Bear and others had emerged.

By the later stages of the trial, Clarence Darrow had largely abandoned the ACLU's original strategy and attacked the literal interpretation of the Bible as well as Bryan's limited knowledge of other religions and science.

By the start of the scientific revolution, empiricism had already become an important component of science and natural philosophy.

By the time the series ended, The X-Files had become the longest-running science fiction series in U. S. television history, though it was subsequently surpassed by Stargate SG-1 in 2007 and by Smallville in 2011.

By 1968, the field of environmental physiology had advanced and expanded significantly, but the science of clothing in relation to environmental physiology had changed little.

By 1886, as part of his doctoral dissertation, he had completed the draft of his The Division of Labor in Society, and was working towards establishing the new science of sociology.