Here we report on the nocturnal bull antMyrmecia pyriformis, a species whose activity to and from the nest is mainly restricted to the dawn and dusk twilight respectively. Recent research on M. pyriformis has focussed on its visual system, the timing of activity patterns, and the navigational strategies employed by individuals while foraging. There is, however, a lack of basic ecological inform...

This study aimed at elucidating the physiological significance of dusk and dawn in the circadian rhythm of core temperature (T(core)) and urinary 6-hydroxymelatonin sulfate in humans during sleep and the waking sensation just after rising. Seven female and four male students served as participants. Participants retired at 2300 h and rose at 0700 h. They were requested to sit on a chair and spen...

The habitable zone for a given star describes the range of circumstellar distances from the star within which a planet could have liquid water on its surface, which depends upon the stellar properties. Here we describe the development of the habitable zone concept, its application to our own solar system, and its subsequent application to exoplanetary systems. We further apply this to planets i...

As David J. Chalmers claims, “virtual reality is a sort of genuine reality, virtual objects are real objects, and what goes on in truly real.” In this paper, I will suggest that the philosophical hypothesis we might live simulation can be considered to last most nihilistic episode series narrations about true apparent worlds Nietzsche sketched The Twilight Idols. argue Nietzsche’s prediction ob...