guglhost.blogg.se -

The adjective moiré formed from this verb is in use from at least 1823. In French usage, the noun gave rise to the verb moirer, "to produce a watered textile by weaving or pressing", by the 18th century. It was a loan of the English mohair (attested 1610). In French, the noun moire is in use from the 17th century, for "watered silk". The similar but imperfect spacing of the threads creates a characteristic pattern which remains after the fabric dries. Moire, or "watered textile", is made by pressing two layers of the textile when wet. The term originates from moire ( moiré in its French adjectival form), a type of textile, traditionally of silk but now also of cotton or synthetic fiber, with a rippled or "watered" appearance.

4.8 Materials science and condensed matter physics.

In physics, its manifestation is wave interference such as that seen in the double-slit experiment and the beat phenomenon in acoustics. They are also sometimes created deliberately – in micrometers they are used to amplify the effects of very small movements. In television and digital photography, a pattern on an object being photographed can interfere with the shape of the light sensors to generate unwanted artifacts. In printing, the printed pattern of dots can interfere with the image.

Moiré patterns appear in many situations. For the moiré interference pattern to appear, the two patterns must not be completely identical, but rather displaced, rotated, or have slightly different pitch.

In mathematics, physics, and art, moiré patterns ( UK: / ˈ m w ɑː r eɪ/ MWAR-ay, US: / m w ɑː ˈ r eɪ/ mwar- AY, French: ( listen)) or moiré fringes are large-scale interference patterns that can be produced when an opaque ruled pattern with transparent gaps is overlaid on another similar pattern. Moiré pattern appearing on scaled camera captures of LCD screen