from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Occurring without periodicity; irregular.
- adj. Physics Without periodic vibrations.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. That does not recur periodically
- adj. That does not have a periodic vibration
- adj. for which any return to it may occur at irregular times; not periodic.
from The Century Dictionary and Cyclopedia
- Without periodicity.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. not recurring at regular intervals
Sorry, no etymologies found.
Some trajectory orbits are aperiodic, meaning that they do not repeat themselves on any time scales.
Schrödinger proposed that a gene could be stable from one generation to another if it is an 'aperiodic' crystal – in other words, something with a regular but non-repeating structure.
But life is characterized by specified complexity: the aperiodic, information-rich sequences of DNA and proteins, for instance, which appear nearly random to standard information theory.
Like a big, macroscopic, aperiodic quasi-crystal complete with embedded dislocations.
Like in ecosystems, things in a steady state economy are changing constantly in both periodic and aperiodic ways.
Mathematically, it was shown that it is possible to completely cover a two dimensional plane with a distinct set of shapes ( "tiles") and not end up with a repeating pattern ( "aperiodic").
Are Penrose's instincts correct that he solved the aperiodic tiling problem instinctually instead of algorithmically?
Penrose points to aperiodic tiling for his non-algorithmic explanation.
Naturally occurring aperiodic crystals that matched Penrose Tilings.
After Hao Wang/Berger proved aperiodic tilings exist in 1966, people tried to find them.