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Stereolithography is a 3D-printing technique that uses photopolymerization to bind substrate that has been laid layer upon layer, creating a polymeric network. As opposed to fused-deposition modeling, where the extruded material hardens immediately to form layers, 4D printing is fundamentally based in stereolithography, where in most cases ultraviolet light is used to cure the layered ...
The narrator describes a church at Combray being "..for me something entirely different from the rest of the town; an edifice occupying, so to speak, a four-dimensional space – the name of the fourth being time." [14] Artist Max Weber's Cubist Poems, is a collection of prose first published in 1914.
Four-dimensional space (4D) is the mathematical extension of the concept of three-dimensional space (3D). Three-dimensional space is the simplest possible abstraction of the observation that one needs only three numbers, called dimensions, to describe the sizes or locations of objects in the everyday world.
Four-dimensionalism is a name for different positions. One of these uses four-dimensionalism as a position of material objects with respect to dimensions. Four-dimensionalism is the view that in addition to spatial parts, objects have temporal parts. [7] According to this view, four-dimensionalism cannot be used as a synonym for perdurantism.
Four-dimensional space, the concept of a fourth spatial dimension; Spacetime, the unification of time and space as a four-dimensional continuum; Minkowski space, the mathematical setting for special relativity
A four-dimensional product (4D product) considers a physical product as a life-like entity capable of changing form and physical properties autonomously over time. It is an evolving field of product design practice and research linked to similar concepts at the material scale (programmable matter and four-dimensional printing), however, typically utilizes sensors and actuators in order to ...
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[31] [d] A five-triangle Möbius strip can be represented most symmetrically by five of the ten equilateral triangles of a four-dimensional regular simplex. This four-dimensional polyhedral Möbius strip is the only tight Möbius strip, one that is fully four-dimensional and for which all cuts by hyperplanes separate it into two parts that are ...