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Smart materials, also called intelligent or responsive materials, [1] [page needed] are designed materials that have one or more properties that can be significantly changed in a controlled fashion by external stimuli, such as stress, moisture, electric or magnetic fields, light, temperature, pH, or chemical compounds.
Poisson's ratio defines how a material expands (or contracts) transversely when being compressed longitudinally. While most natural materials have a positive Poisson's ratio (coinciding with our intuitive idea that by compressing a material, it must expand in the orthogonal direction), a family of extreme materials known as auxetic materials can exhibit Poisson's ratios below zero.
Artificial polymer: Man-made polymer that is not a biopolymer. Note 1: Artificial polymer should also be used in the case of chemically modified biopolymers. Note 2: Biochemists are now capable of synthesizing copies of biopolymers that should be named Synthetic biopolymer to make a distinction with true biopolymers.
Pages in category "Artificial materials" The following 12 pages are in this category, out of 12 total. This list may not reflect recent changes. A. Artificiality; C.
Robotic materials are composite materials that combine sensing, actuation, computation, and communication in a repeatable or amorphous pattern. [1] Robotic materials can be considered computational metamaterials in that they extend the original definition of a metamaterial [2] as "macroscopic composites having a man-made, three-dimensional, periodic cellular architecture designed to produce an ...
The Blue Ghost touchdown kicks off two weeks of around-the-clock research by NASA science and technology payloads. Popular Mechanics 1 day ago Scientists confirm the incredible existence of time ...
A synthetic element is one of 24 known chemical elements that do not occur naturally on Earth: they have been created by human manipulation of fundamental particles in a nuclear reactor, a particle accelerator, or the explosion of an atomic bomb; thus, they are called "synthetic", "artificial", or "man-made".
The most common use for artificial dielectrics throughout prior decades has been in the microwave regime for antenna beam shaping. The artificial dielectrics had been proposed as a low cost and lightweight "tool". Research on artificial dielectrics, other than metamaterials, is still ongoing for pertinent parts of the electromagnetic spectrum.