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Timetravel
Time travel is the concept of movement between certain points in time, analogous to movement between different points in space by an object or a person, typically with the use of a hypothetical device known as a time machine. Time travel is a widely recognized concept in philosophy and fiction, particularly science fiction. The idea of a time machine was popularized by H. G. Wells' 1895 novel '' The Time Machine''. It is uncertain if time travel to the past is physically possible, and such travel, if at all feasible, may give rise to questions of causality. Forward time travel, outside the usual sense of the perception of time, is an extensively observed phenomenon and well-understood within the framework of special relativity and general relativity. However, making one body advance or delay more than a few milliseconds compared to another body is not feasible with current technology. As for backward time travel, it is possible to find solutions in general relativity th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Special Relativity
In physics, the special theory of relativity, or special relativity for short, is a scientific theory regarding the relationship between space and time. In Albert Einstein's original treatment, the theory is based on two postulates: # The laws of physics are invariant (that is, identical) in all inertial frames of reference (that is, frames of reference with no acceleration). # The speed of light in vacuum is the same for all observers, regardless of the motion of the light source or the observer. Origins and significance Special relativity was originally proposed by Albert Einstein in a paper published on 26 September 1905 titled "On the Electrodynamics of Moving Bodies".Albert Einstein (1905)''Zur Elektrodynamik bewegter Körper'', ''Annalen der Physik'' 17: 891; English translatioOn the Electrodynamics of Moving Bodiesby George Barker Jeffery and Wilfrid Perrett (1923); Another English translation On the Electrodynamics of Moving Bodies by Megh Nad Saha (1920). The incompa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wormhole
A wormhole (Einstein-Rosen bridge) is a hypothetical structure connecting disparate points in spacetime, and is based on a special Solutions of the Einstein field equations, solution of the Einstein field equations. A wormhole can be visualized as a tunnel with two ends at separate points in spacetime (i.e., different locations, different points in time, or both). Wormholes are consistent with the General relativity, general theory of relativity, but whether wormholes actually exist remains to be seen. Many scientists postulate that wormholes are merely projections of a Four-dimensional space, fourth spatial dimension, analogous to how a two-dimensional (2D) being could experience only part of a three-dimensional (3D) object. Theoretically, a wormhole might connect extremely long distances such as a billion light years, or short distances such as a few meters, or different points in time, or even multiverse, different universes. In 1995, Matt Visser suggested there may be ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time Travel In Fiction
Time travel is a common theme in fiction, mainly since the late 19th century, and has been depicted in a variety of media, such as literature, television, film, and advertisements. The concept of time travel by mechanical means was popularized in H. G. Wells' 1895 story, ''The Time Machine''. In general, time travel stories focus on the consequences of traveling into the past or the future. The central premise for these stories often involves changing history, either intentionally or by accident, and the ways by which altering the past changes the future and creates an altered present or future for the time traveler upon their return home. In other instances, the premise is that the past cannot be changed or that the future is predetermined, and the protagonist's actions turn out to be either inconsequential or intrinsic to events as they originally unfolded. Some stories focus solely on the paradoxes and alternate timelines that come with time travel, rather than time traveling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rip Van Winkle
"Rip Van Winkle" is a short story by the American author Washington Irving, first published in 1819. It follows a Dutch-American villager in colonial America named Rip Van Winkle who meets mysterious Dutchmen, imbibes their liquor and falls asleep in the Catskill Mountains. He awakes 20 years later to a very changed world, having missed the American Revolution. The concept is ancient, including the 70-year nap by Choni HaMeA-Gail. Irving, inspired by a conversation on nostalgia with his American expatriate brother-in-law, wrote his story while temporarily living in Birmingham, England. It was published in his collection, ''The Sketch Book of Geoffrey Crayon, Gent.'' While the story is set in New York's Catskill Mountains near where Irving later took up residence, he admitted, "When I wrote the story, I had never been on the Catskills." Plot Rip Van Winkle, a Dutch-American man with a habit of avoiding useful work, lives in a village at the foot of New York's Catskill Mount ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McGraw-Hill
McGraw Hill is an American educational publishing company and one of the "big three" educational publishers that publishes educational content, software, and services for pre-K through postgraduate education. The company also publishes reference and trade publications for the medical, business, and engineering professions. McGraw Hill operates in 28 countries, has about 4,000 employees globally, and offers products and services to about 140 countries in about 60 languages. Formerly a division of The McGraw Hill Companies (later renamed McGraw Hill Financial, now S&P Global), McGraw Hill Education was divested and acquired by Apollo Global Management in March 2013 for $2.4 billion in cash. McGraw Hill was sold in 2021 to Platinum Equity for $4.5 billion. Corporate History McGraw Hill was founded in 1888 when James H. McGraw, co-founder of the company, purchased the ''American Journal of Railway Appliances''. He continued to add further publications, eventually establishing The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Evolution And Technology
The Institute for Ethics and Emerging Technologies (IEET) is a technoprogressive think tank that seeks to "promote ideas about how technological progress can increase freedom, happiness, and human flourishing in democratic societies."Joseph R. Herkert, "Ethical Challenges of Emerging Technologies", in Gary E. Marchant, Braden R. Allenby, Joseph R. Herkert, eds., ''The Growing Gap Between Emerging Technologies and Legal-Ethical Oversight'' (2011), p. 38. It was incorporated in the United States in 2004, as a non-profit 501(c)(3) organization, by philosopher Nick Bostrom and bioethicist James Hughes.Tamar Sharon, ''Human Nature in an Age of Biotechnology: The Case for Mediated Posthumanism'' (2013), p. 26. The think tank aims to influence the development of public policies that distribute the benefits and reduce the risks of technological change. It has been described as " ong the more important groups" in the transhumanist movement, and as being among the transhumanist groups th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urashima Tarō
is the protagonist of a Japanese fairy tale (''otogi banashi''), who in a typical modern version is a fisherman rewarded for rescuing a turtle, and carried on its back to the Dragon Palace (Ryūgū-jō) beneath the sea. There he is entertained by the princess Otohime as a reward. He spends what he believes to be several days with the princess, but when he returns to his home village, he discovers he has been gone for at least 100 years. When he opens the forbidden jewelled box (tamatebako), given to him by Otohime on his departure, he turns into an old man. The tale originates from the legend of Urashimako (Urashima no ko or Ura no Shimako) recorded in various pieces of literature dating to the 8th century, such as the ''Fudoki'' for Tango Province, '' Nihon Shoki'', and the '' Man'yōshū''. During the Muromachi to Edo periods, versions of ''Urashima Tarō'' appeared in storybook form called the '' Otogizōshi'', made into finely painted picture scrolls and picture books or m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mahākāśyapa
Mahākāśyapa ( pi, Mahākassapa) was one of the principal disciples of Gautama Buddha. He is regarded in Buddhism as an enlightened disciple, being foremost in ascetic practice. Mahākāśyapa assumed leadership of the monastic community following the '' paranirvāṇa'' (death) of the Buddha, presiding over the First Buddhist Council. He was considered to be the first patriarch in a number of Early Buddhist schools and continued to have an important role as patriarch in the Chan and Zen traditions. In Buddhist texts, he assumed many identities, that of a renunciant saint, a lawgiver, an anti-establishment figure, but also a "guarantor of future justice" in the time of Maitreya, the future Buddhahe has been described as "both the anchorite and the friend of mankind, even of the outcast". In canonical Buddhist texts in several traditions, Mahākāśyapa was born as Pippali in a village and entered an arranged marriage with a woman named Bhadra-Kapilānī. Both of them aspired ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gautama Buddha
Siddhartha Gautama, most commonly referred to as the Buddha, was a wandering ascetic and religious teacher who lived in South Asia during the 6th or 5th century BCE and founded Buddhism. According to Buddhist tradition, he was born in Lumbini, in what is now Nepal, to royal parents of the Shakya clan, but renounced his home life to live as a wandering ascetic ( sa, śramaṇa). After leading a life of begging, asceticism, and meditation, he attained enlightenment at Bodh Gaya in what is now India. The Buddha thereafter wandered through the lower Indo-Gangetic Plain, teaching and building a monastic order. He taught a Middle Way between sensual indulgence and severe asceticism, leading to Nirvana, that is, freedom from ignorance, craving, rebirth, and suffering. His teachings are summarized in the Noble Eightfold Path, a training of the mind that includes meditation and instruction in Buddhist ethics such as right effort, mindfulness, and '' jhana''. He di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Payasi
Pāyāsi or Paesi is a legendary king mentioned in the ancient Buddhist and Jain texts of India. In these legends, he appears as a materialist who orders several experiments to conclude that the soul does not exist. A Jain or Buddhist monk proves him wrong in a debate, and converts him to their faith. Legends According to Buddhist and Jain legends, Paesi ordered several cruel experiments to conclude that the soul does not exist. For example, he had a thief thrown alive in a brass pot, with a brass lid soldered over it, to see how his soul could escape after his death. Buddhist and Jain works mention similar accounts of other people conducting such experiments to deny the existence of soul. In all these accounts,a Buddhist or Jain monk defeats the person denying the existence of the soul in a debate. E.g. in Haribhadra's ''Samaraichcha Katha'' (''Samarditya Katha''), a man named Pingakesa states that a robber sentenced to death had been put in a sealed iron vessel, but no soul was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pāli Canon
The Pāli Canon is the standard collection of scriptures in the Theravada Buddhist tradition, as preserved in the Pāli language. It is the most complete extant early Buddhist canon. It derives mainly from the Tamrashatiya school. During the First Buddhist Council, three months after the parinibbana of Gautama Buddha in Rajgir, Ananda recited the Sutta Pitaka, and Upali recited the Vinaya Pitaka. The Arhats present accepted the recitations and henceforth the teachings were preserved orally by the Sangha. The Tipitaka that was transmitted to Sri Lanka during the reign of King Asoka were initially preserved orally and were later written down on palm leaves during the Fourth Buddhist Council in 29 BCE, approximately 454 years after the death of Gautama Buddha. The claim that the texts were "spoken by the Buddha", is meant in this non-literal sense. The existence of the bhanaka tradition existing until later periods, along with other sources, shows that oral tradition conti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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