Space, Time and Multi-time

Author(s):  
David Gelernter

we move now to the world of asynchronous ensembles. we’ve discussed information machines. Now imagine a lot of them zipping around separately, each piloted by its own Actor—communicating occasionally, getting born and self-destructing spontaneously—all converging like a swarm of space-scooters or electronic piranhas on some lurking huge problem in the near distance. Now this is computing! A group of objects that interact; a group, accordingly, that is more than the sum of its parts. If you assemble a hundred toasters side-by-side and turn each one loose on a slice of bread, what you’ve got is a hundred toasters, toasting their hearts out. If you assemble a hundred monkeys side by side, what you’ve got is not merely a hundred monkeys. You have a monkey community of some kind, an ensemble and not simply one hundred separate parts. Toasters don’t interact, but monkeys do. One hundred information machines working on the same problem also form an ensemble, an entity that is more, in some sense, than the sum of its parts. Like monkeys, these information machines interact. They must communicate and coordinate with each other in order to make progress as a group on the same problem. An ensemble is asynchronous if each part is independent, ticking along at its own pace. In the ensembles we’re talking about, each information machine is encased in its own little piece of spacetime. The machines are unsynchronized: No machine can predict exactly what any other machine is doing at any given time, because each Actor runs his own show, executes his own script. Nothing outside the machine beats time or constrains the Actor in any way: He barrels along at his own speed. Asynchronous ensembles (ensembles for short) are a major topic for software in general. They are the crucial Mirror world technology. Mirror worlds would be unthinkable without them. But here’s another interesting thing about ensembles: They are also the “crucial technology” of nature and mankind. That’s a biggish statement. But a bit of thought makes it clear that physical, chemical, biological and sociological systems are virtually all asynchronous ensembles of one kind or another.

2017 ◽  
Vol 4 (1) ◽  
pp. 44-63 ◽  
Author(s):  
Sarah Kabir ◽  
R.L. Stirrat

Although expatriate remittances are a major topic of study in the world of development, relatively little research has taken place on the motives and meanings of international remittances. This article examines Sri Lankan expatriates in the United Kingdom. It focuses on charitable and philanthropic activities and argues that these can only be understood within the context of the personal histories of the donors.


2021 ◽  
Vol 11 (22) ◽  
pp. 81-85
Author(s):  
Tamás Fazekas

Being a chairman and professor of physiology in Breslau/Wroclaw till 1850, Jan Evangelista Purkinje (1797-1869) made many crucial discoveries/experiments with the new advanced microscopy and histology techniques. He established the first institute of the physiology of the world (1839) and founded the basic principles and framework of cellular physiology (protoplasmic concept) both in plant and animal tissues. Purkine discovered and described (first in Polish, 1839) the extensive terminal network of the cardiac conduction system. Its paradigmatic discovery was presented in the last two 15-page German article in 1845, which was immediately translated into English by Sir William Withey Gull (1816-1880), an extraordinary physician to the queen and Prince of Wales. In 1837, he made his other famous discovery of Purkine cells, a giant flak-shaped nerve cell forming the middle layer of the cerebellum. His combination of physical, chemical, and microscopic observations made him the father of modern experimental physiology and predecessor of the legendary French scientist/biologist, Claude Bernard (1813-1878). Purkinje as a Czech and Slav patriot advocated cultural collaboration of Slav nations and promoted understanding between the nations of the Habsburg monarchy. His life and personality is also an inspiration on how to be a truly humanistic European and yet, a highly responsible, convinced patriot. He was a pioneer of the Czech medical language. His achievements are possibly best documented by this rhyme of Goethe: „…and should you fail to understand let Purkinje give you a hand.” True also for our times (cit by Zarsky).


Author(s):  
Torin Alter

The knowledge argument is an argument against physicalism, the view that the world is wholly physical. It was developed by Frank Jackson (1943–) and is based on the following thought experiment. Everything that can be known through the physical, chemical, and biological sciences – the complete physical truth – has been discovered. Mary is a brilliant scientist who is raised in a black-and-white room. She has never had colour experiences. But she learns the complete physical truth, which includes the completed science of colour vision, by reading books and watching lectures on a black-and-white television monitor. Then she leaves the room and sees colours. Jackson’s argument runs roughly as follows. When Mary leaves the room, she learns something new. She learns what it is like to see in colour. Evidently, the complete physical truth is not the complete truth about the world. Ergo, physicalism is false. Some react by denying that Mary learns anything when she leaves the room. Others react by accepting that she learns something but denying that this refutes physicalism. Still others accept the argument as sound. The ensuing discussion has led to a variety of insights about consciousness and its place in the natural world.


Philosophy ◽  
2010 ◽  
Vol 85 (2) ◽  
pp. 185-200 ◽  
Author(s):  
Joel J. Kupperman

AbstractPrinciples can seem as entrenched in moral experience as Kant thinks space, time, and the categories are in human experience of the world. However not all cultures have such a view. Classical Indian and Chinese philosophies treat modification of the self as central to ethics. Decisions in particular cases and underlying principles are much less discussed.Ethics needs comparative philosophy in order not to be narrow in its concerns. A broader view can give weight to how people sometimes can change who they are, in order to lead better lives.


Daphnis ◽  
2017 ◽  
Vol 45 (3-4) ◽  
pp. 343-388
Author(s):  
Ottmar Ette

Welterleben and Weiterleben are what determine the second globalization (of four previously explored) whose constantly accelerating dynamic, vectorization, this essay explores. On the basis of selected writings of Georg Forster, Alexander von Humboldt, and Adelbert von Chamisso, the author highlights the increasing speed with which knowledge, especially in the experiential sciences, is produced and disseminated following the routes of ever-widening trade speeded along by globalization. The notion of ‘vectopia’ stands for the connection of utopia and uchronia in space and time in such a way that the experience of the world, expanded worldwide, contains within it a Weiter-Leben, a ‘living-further’ that is to be understood first in a spatial, and not yet temporal, sense, of what Forster called Erfahrungswissen, or ‘experiential knowledge.’ Vectopia, as elaborated here, has a material dimension that relates to the physical person, the body, the experience of the world that cannot occur without the constant changing of place, without a journeying that is again and again recommenced. Vectopia develops the projection of a life not from space or from time alone, but by their combination. Vectopia is more than a concept, it is a thought-figure: it is vitally connected to life, and thus a life-figure. It opens itself to a type of knowledge that stands almost at the threshold of a further life, indeed, of a Weiterleben that, opening itself to a ‘living-onward,’ resides beyond space, time, and movement.


The construction of field theory which exhibits invariance under the Weyl group with parameters dependent on space–time is discussed. The method is that used by Utiyama for the Lorentz group and by Kibble for the Poincaré group. The need to construct world-covariant derivatives necessitates the introduction of three sets of gauge fields which provide a local affine connexion and a vierbein system. The geometrical implications are explored; the world geometry has an affine connexion which is not symmetric but is semi-metric. A possible choice of Lagrangian for the gauge fields is presented, and the resulting field equations and conservation laws discussed.


The relativity theory of gravitation indicates that space-time is a four dimensional continuum in which the line element is measured by the equation ( ds ) 2 = g mn dx m dx n , (1) the notation being that generally adopted. The world-lines or natural tracks of free particles in this space are geodesics. From (1) we have g mn dx m /ds . dx n /ds = 1, (2) the quantity on the left being an expression corresponding to the kinetic energy of ordinary dynamics for a particle of unit mass. This correspondence is readily appreciated if it be noted that dx m /ds is the natural extension of the velocity, dx m /dt .


1996 ◽  
Vol 11 (18) ◽  
pp. 3247-3255 ◽  
Author(s):  
P.S. WESSON ◽  
J. PONCE DE LEON ◽  
H. LIU ◽  
B. MASHHOON ◽  
D. KALLIGAS ◽  
...  

We unify the gravitational field with its source by considering a new type of 5D manifold in which space and time are augmented by an extra dimension which induces 4D matter. The classical tests of relativity are satisfied, and for solitons we obtain new effects which can be tested astrophysically. The canonical cosmological models are in agreement with observations, and we gain new insight into the nature of the big bang. Our inference is that the world may be pure geometry in 5D.


Horticulturae ◽  
2021 ◽  
Vol 7 (9) ◽  
pp. 287
Author(s):  
Renata Mussoi Giacomin ◽  
Leonel Vinícius Constantino ◽  
Alison Fernando Nogueira ◽  
Maria Beatriz Cadato Ruzza ◽  
Ariele Maria Morelli ◽  
...  

Sweet pepper (Capsicum annuum L.) is one of the most consumed vegetables in the world, being recognized as a food with high nutritional value. Recently, the market for sweet and colorful mini peppers has increased, especially among the most demanding consumers in the novelties in vegetables and functional foods. In this sense, we evaluated mini sweet peppers genotypes (Akamu, Kaiki, Kalani, Kaolin e Moke from Isla® seeds) regarding the physical-chemical, nutritional and sensory analysis aspects. A wide variability was observed among genotypes, highlighting the Kalani genotype for total carotenoids, and the genotypes Akamu, Kaiki and Kaolin for phenolic totals content and antioxidant activity. Moke and Kaolin showed higher vitamin C content and fruit firmness. Based on sensory analysis, Kalani, Kaiki, Kaolin and Akamu obtained greater global acceptance. The genotypes can be considered an important marketing strategy of mini sweet peppers trade, associating different shapes, colors and nutritional quality.


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