http://en.wikipedia.org/wiki/Holographic_principle
Related: à revoir-1glossary of graph theory Graph theory is a growing area in mathematical research, and has a large specialized vocabulary. Some authors use the same word with different meanings. Some authors use different words to mean the same thing. Mereology Mereology has been axiomatized in various ways as applications of predicate logic to formal ontology, of which mereology is an important part. A common element of such axiomatizations is the assumption, shared with inclusion, that the part-whole relation orders its universe, meaning that everything is a part of itself (reflexivity), that a part of a part of a whole is itself a part of that whole (transitivity), and that two distinct entities cannot each be a part of the other (antisymmetry). A variant of this axiomatization denies that anything is ever part of itself (irreflexive) while accepting transitivity, from which antisymmetry follows automatically. Standard university texts on logic and mathematics are silent about mereology, which has undoubtedly contributed to its obscurity. History[edit] A.N.
The Physics of the Schwarzschild Proton There's a lot of stuff here. You won't need all of it to get the gist – have a browse. I'm exploring this material not with belief or opinion or conjecture, but using well-established laws of physics only – in fact I'm going out of my way to really try to make his model fit with reality. Nested Intervals with Farey Fractions Nested Intervals with Farey Fractions Vadim Tropashko This article completes the series of articles exploring Nested Intervals Model. Previous articles introduced tree encoding with Binary Rational Numbers. Direct and indirect realism Naïve realism argues we perceive the world directly Naïve realism, also known as direct realism or common sense realism, is a philosophy of mind rooted in a theory of perception that claims that the senses provide us with direct awareness of the external world. In contrast, some forms of idealism assert that no world exists apart from mind-dependent ideas and some forms of skepticism say we cannot trust our senses. Naïve realism is known as direct as against indirect or representative realism when its arguments are developed to counter the latter position, also known as epistemological dualism;[2] that our conscious experience is not of the real world but of an internal representation of the world. Theory[edit] The naïve realist theory may be characterized as the acceptance of the following five beliefs:
MetalicaRap MetalicaRap Release status: Experimental MetalicaRap is an open 3D metal & home solar cell printer, based on the principles of electron beam welding and vapor deposition. MetalicaRap is currently in the design stage. The goal is to have affordable home-manufacturing of solar cells, key electrical parts and milled-quality metal parts[3][4][5]. An electron beam based printer was chosen due to the ability to print itself, the power efficiency of an electron gun versus a powerful laser at fusing metal, and the fact that an electron gun and vacuum chamber are the primary requirements for thin film solar cell printers.
Geometrical frustration In condensed matter physics, the term geometrical frustration (or in short: frustration [1]) refers to a phenomenon, where atoms tend to stick to non-trivial positions or where, on a regular crystal lattice, conflicting inter-atomic forces (each one favoring rather simple, but different structures) lead to quite complex structures. As a consequence of the frustration in the geometry or in the forces, a plenitude of distinct ground states may result, at zero temperature, and usual thermal ordering may be suppressed, at higher temperatures. Much studied examples are amorphous materials, glasses, or dilute magnets. Magnetic ordering[edit] Similarly in three dimensions, four spins arranged in a tetrahedron (Figure 2) may experience geometric frustration.
Teralab - Homemade Electron Gun Experiment The aim of this experiment was to construct an electron gun completely from scratch. The ultimate goal was to produce a video image inside the bell jar of the vacuum rig. Electrostatic focusing and deflection was chosen, as large coils of wire would trap air and so be incompatible with the high vacuum environment. For the design of the gun some simulation software was desirable. CPO-2D student version was used. This software can be downloaded free from CPO Ltd.
Participatory Media Literacy / Participatory Media Literacy Guide To This Site's Contents Welcome to Participatory Media Literacy (Home)BloggingWikiRSSSocial Bookmarking, Tagging, Music/Photo/Video SharingPodcastingVideo BloggingDigital Video ResourcesDigital StorytellingMashupsChat: Channeling the BackchannelTransliteracyForecasting: Thinking long term, developing foresight Participatory Media Education Resources Recent technological changes have made much wider social changes possible: Until the end of the twentieth century, only a relatively small and wealthy fraction of the human race could broadcast television programs, publish newspapers, create encyclopedias; by the twenty first century, however, inexpensive digital computers and ubiquitous Internet access made the means of high quality media production and distribution accessible to a substantial portion of the world's population. In 20068, more than one billion people are connected to the Internet and more than three billion people carry mobile telephones.
Neutral monism Neutral monism, in philosophy, is the metaphysical view that the mental and the physical are two ways of organizing or describing the same elements, which are themselves "neutral", that is, neither physical nor mental. This view denies that the mental and the physical are two fundamentally different things. Rather, neutral monism claims the universe consists of only one kind of stuff, in the form of neutral elements that are in themselves neither mental nor physical; these neutral elements might have the properties of color and shape, just as we experience those properties, but these shaped and colored elements do not exist in a mind (considered as a substantial entity, whether dualistically or physicalistically); they exist on their own. History[edit]
Myth of Water Abundance One of the greatest threats to Canada's supply of fresh water is our belief in its absolute abundance, however a limitless supply of water in Canada is a myth. The reality is: Economic growth is already constrained by water scarcity in parts of Western Canada.25% of Canadian communities experienced water shortages during the latter half of the 1990s.While the volume of fresh water sitting in Canada’s lakes accounts for about 20% of the water in all the world’s lakes, Canada only has 6.5% of the world’s renewable water supply is in Canada – behind Brazil (12.4%) and Russia (10%) and just ahead of the United States (6.4%). To ensure water for future generations, we must be careful not to consume non-renewable water supplies.Most of our water is inaccessible - 60% of Canada’s surface water flows north. References
Unobservable "Unobservables" is a reference similar to Immanuel Kant's distinction between noumena (things-in-themselves, i.e., raw things in their necessarily unknowable state,[1] before they pass through the formalizing apparatus of the senses and the mind in order to become perceived objects) and phenomena (the perceived object). According to Kant humans can never know noumena; all that humans know is the phenomena. Kant's distinction is similar to John Locke's distinction between primary and secondary qualities. Smelting Foundry Part I It’s been in my to-do list for a long time and now it’s getting built,the smelting foundry. After spending couple nights searching the interwebs for resources on the subject I was ready to start on my own. so here I present to you,the design plans and the build log.