ColloidalPparticles (image) University of Oxford Share Print E-Mail Caption Colloidal particles have a typical size between a manometer (a millionth of millimeter) and a micrometer (a thousandth of a millimeter). Spherical colloidal particles suspended in a liquid such as water are the best experimental realization of micrometer-sized hard spheres (the scale bar in the image below corresponds to 1 micro-meter). Credit Ye et al, J. Phys. D: Appl. Phys. 49, 265104 (2016) Usage Restrictions None Share Print E-Mail 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.