on so here we are in an experiment for all that the but certain. and if these concrete blocks magnets conduct protons into the cloud chamber. scientists simulate the composition and conditions of different atmospheres and observe how they react to ionizing particles. not what you see about silver cylinder though it's actually the thermal housing that surrounds the cloud at the chamber itself is three metre chamber is inside of that it's a very special chamber because it's the cleanest chamber in the world in fact it's the only chamber where we can do these experiments. the chamber