The Structure of Matter
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.