Posts tagged geometry

SHAPE NAMES because im bored: Obround. this is a rectangle with two of the edges replaced with semicircles. or i guess two…

tendril perversion, naming things, geometry

ranidspace:

SHAPE NAMES because im bored:

Obround. this is a rectangle with two of the edges replaced with semicircles. or i guess two semicircles connected with parallel lines. the 3d version of this is a spherocylinder or a capsule if you’re boring. actually i lied this is called a stadium not an obround but that’s such a terrible name.

Lemniscate. theres a few different equations that make this sort of shape, but basically a general name for a figure 8/infinity type shape.

Octothorpe. A general name for a shape made with 2 sets of 2 parallel lines to make 9 sections. (the eight, comes from how many “ends” of the lines there are. it’s dumb). Also called a pound symbol/hashtag/sharp/tictactoe grid theres too many names for this.

Polyominos. Shapes made with a bunch of squares put together at the edges. goes monomino, domino, tromino, tetromino(these are tetris peices!), pentomino and so on. If made with equlateral triangles, it’s a “Polyiamond”, hexagons are “polyhexes”, with cubes connected at the face, it’s “polycubes”

Annulus. dont make a joke. it’s a circle with a hole. kind of like a 2d version of a torus.

Caternary. A shape that represents a rope or chain effected by gravity, and how it hangs depending on it’s length and the location of its two ends.

Caustic. general name for shapes formed by light hitting a tranmissive or reflective object that is not flat.

Tendril Perversion. That’s right. the name of a helix with this thing happening to it. (the helix goes from spinning one way to another). is called Tendril Perversion. it’s not a shape but more of a “geometric phenomenon” wikipedia said. it was named by charles darwin.

Hosohedron. Basically like slicing a cake. but with spheres. it doesnt refer to the inside. only the surface. it’s like a beach ball.

im out of shapes. post more shapes that are of things that u see a lot but dont know the name of

an· i· so· tro· py : the property of being directionally dependent, as opposed to isotropy, which implies identical properties…

robotics, 3dprinting, anisotropic, geometry, sculpture, architecture, form, aesthetics

video link

warrenellis:

an· i· so· tro· py : the property of being directionally dependent, as opposed to isotropy, which implies identical properties in all directions. Anisotropic Formations is a proto-architectural exploration of anisotropic aesthetics and structures through vector based 3d printing. Taking inspiration from 3d printed fashion, composite sail manufacturing and experimental application of 6-axis robotics, the project takes the anisotropic approach as both an aesthetic and a fabrication logic. Anisotropic geometry is vector-based and is directionally dependent. Combinations of these vectors result in rich surface and 3d qualities of varied densities, hierarchies and multi-directional layering. There was an imperative to pursue this design research in a post-digital platform, stepping out from the Euclidean flatness of the computer screen onto the non-Euclidean platform of the physical. Plastic extrusion provided direct access to vector geometry in physical space, enriching it with material agency. Flexibility of the scaffold allowed for multiple configurations and other possibilities. The project was realized through a series of iterations that subjected the design agenda to a series of different machining workspaces and digital-to-physical workflows. From Cartesian workspace of a conventional 3d printer to spherical workspace of multi-axis collaborative robotics and from vector based workflows of 3d modeling to motion based work flows of animation. Anisotropic Formations_SCI-Arc 13FA_Testa ESTm Vertical Studio Team: Salvador Cortez / Cheng Lu / Avra Tomara / Nikita Troufanov Instructor: Peter Testa
 Robot Lab Coordinator: Jake Newsum Anisotropic Formations Nikita Troufanov

Uncoiling the spiral: Maths and hallucinations

visual hallucinations, hallucinations, mathematics, pattern, geometry, visual cortex, neurophysiolog

Popping peyote buttons with his assistant in the laboratory, Klüver noticed the repeating geometric shapes in mescaline-induced hallucinations and classified them into four types, which he called form constants: tunnels and funnels, spirals, lattices including honeycombs and triangles, and cobwebs. In the 1970s the mathematicians Jack D. Cowan and G. Bard Ermentrout used Klüver’s classification to build a theory describing what is going on in our brain when it tricks us into believing that we are seeing geometric patterns. Their theory has since been elaborated by other scientists, including Paul Bressloff, Professor of Mathematical and Computational Neuroscience at the newly established Oxford Centre for Collaborative Applied Mathematics.

http://plus.maths.org/content/uncoiling-spiral-maths-and-hallucinations