This poster looks at the structure of matter. One side of the poster discusses the limits of imaging with light and the use of electron microscopes, and looks at the 20th century pioneers – from J. J. Thomson’s plum pudding model, through Rutherford and Chadwick’s advances in understanding the nucleus, to the use of particle accelerators to image the sub-atomic world. The other side of the poster investigates quarks and gluons. The theoretical and experimental evidence for the quark model is discussed with reference to the HERA accelerator at DESY, Germany. The poster was produced by the Particle Physics and Astronomy Research Council (PPARC). PPARC was replaced by the Science and Technology Facilities Council (STFC) in 2007. STFC is a part of the Research Councils UK (RCUK) partnership of research councils.

Show health and safety information

Please be aware that resources have been published on the website in the form that they were originally supplied. This means that procedures reflect general practice and standards applicable at the time resources were produced and cannot be assumed to be acceptable today. Website users are fully responsible for ensuring that any activity, including practical work, which they carry out is in accordance with current regulations related to health and safety and that an appropriate risk assessment has been carried out.

Published by


Share this resource