Text Size

Ordinarily, waves don't play favorites with direction--they flow the same way from right to left as from left to right. But a theoretical paper in the 22 April Physical Review Letters suggests a way to make finicky light that flows freely in one direction but not the other. The idea is to use an asymmetric arrangement of so-called nonlinear materials, in which the wave's amplitude affects its speed. The device could find applications in areas from quantum computers to soundproofing.

To read the rest of the article, click here.
Category: Science
indian porn sexnxxx.cc xvideos Amateur Porn video porno amatoriali filmeporno.top lupoporno film porno gratuit porno mature xnxx film porno gratuit
bisexuel gay porno gay porno देसी सेक्स एचडी पॉर्न ऊपर ऊपर से चुदाई Големи цици