1,000-atom model of amorphous graphite (IMAGE) Ohio University Caption One of the planes in 1,000-atom model of amorphous graphite. Yellow spheres are carbon atoms. Note the “ring disorder”: co-existing pentagons, hexagons and heptagons. Credit Ohio University Usage Restrictions None License Original content 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.