The Gadgeteer - The best source of gadget and gizmo related reviews on the net! Escher for Real The work of M.C. Escher needs no introduction. We have all learned to appreciate the impossibilities that this master of illusion's artwork presents to the layman's eye. Nevertheless, it may come as a surprise for some, but many of the so-called 'impossible' drawings of M. C. Escher can be realized as actual physical objects. You are also invited to watch our movie: "Escher for Real" and "Impossibly Real". "Escher for Real" "Impossibly Real" Convention In the following sequences, figures are frequently presented in pairs. The Penrose Triangle We start with the Penrose triangle object (also independently invented by Oscar Reutersvard). The Penrose Rectangle The impossible shape conveyed by the Penrose triangle is the most well-known one. The Penrose Pentagon Similarly and following the construction of a Penrose triangle and Penrose rectangle, one can easily create an arbitrary Penrose n-gon. The Penrose Triangle II The Penrose Triangle IV Escher's (Louis Albert Necker's) Cube Escher's Waterfall
TechEBlog An Essay by Einstein -- The World As I See It "How strange is the lot of us mortals! Each of us is here for a brief sojourn; for what purpose he knows not, though he sometimes thinks he senses it. But without deeper reflection one knows from daily life that one exists for other people -- first of all for those upon whose smiles and well-being our own happiness is wholly dependent, and then for the many, unknown to us, to whose destinies we are bound by the ties of sympathy. "I have never looked upon ease and happiness as ends in themselves -- this critical basis I call the ideal of a pigsty. "My passionate sense of social justice and social responsibility has always contrasted oddly with my pronounced lack of need for direct contact with other human beings and human communities. "My political ideal is democracy. "This topic brings me to that worst outcrop of herd life, the military system, which I abhor... "The most beautiful experience we can have is the mysterious. See also Einstein's Third Paradise, an essay by Gerald Holton
Notebooks Blog - Novidades sobre notebooks, laptops e palmtops Abaixo, transcrição de interessante reportagem do Wall Street Journal, narrando o crescimento da ARM, empresa que produz os processadores do iPad, iPhone e diversos outros smartphones. É uma empresa que está mudando o mundo, impulsionando a atual revolução da informática que permite a qualquer um carregar no bolso gráficos sofisticados, jogos mais velozes e aplicativos impressionantes. E você nunca ouviu falar dela. A empresa se chama ARM Holdings PLC, uma firma britânica de projeto de microprocessadores fundada há 21 anos num galpão de criação de perus. Os microchips da ARM se tornaram o padrão mais popular para celulares e tablets e podem ser encontrados em centenas de milhões de outros aparelhos, de câmeras digitais a discos rígidos. O prestígio crescente da ARM – e a ameça que representa à Intel – ficou evidente em 2 de março, quando o diretor-presidente da Apple Inc., Steve Jobs, apresentou o iPad 2 para jornalistas e entusiastas. A duração da bateria é crucial.
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