21. Bubble chamber experiments provide further evidence that antiparticles have the same inertial mass as their normal counterparts.22. The experience acquired during the prototype phase enabled the team to build the 30 cm bubble chamber . 23. The photographs obtained proved the exceptional quality of the 30 cm bubble chamber despite its small dimensions. 24. The ones carried out in the 2 m bubble chamber with hydrogen liquid filling were : T247. 25. The bubble chamber technique was increasingly having to be extended and enhanced in order to produce competitive results. 26. Bubble chambers are similar to bubbles.27. Feynman diagrams are often confused with spacetime diagrams and bubble chamber images because they all describe particle scattering. 28. "' Gargamelle "'was a giant bubble chamber detector at CERN, designed mainly for the detection of neutrino interactions. 29. :The second one is an image from a bubble chamber ( a cousin of the cloud chamber ). 30. This is used especially in bubble chamber experiments where it is used to determine the momenta of decay particles.