Nanomechanical Fiber (image) The Optical Society Caption This image shows an actual cross-section and extreme magnification of the nanomechanical fiber. The dual cores are shown in the center, each a mere 0.5 micrometers across at their centers, while the supporting glass filament is approximately 0.2 micrometers across. The small-scale structure was achieved by heating and drawing out a larger fiber-optic form. Credit Optics Express Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.