41. Heavy elements are moved with a gantry crane capable of lifting up to 5 tons.42. A different model called the displacement spike was proposed for fast neutron bombardment of heavy elements . 43. These isotopes are obtained by nuclear fission or proton induced spallation of heavy elements as uranium. 44. 1976 : Burton Richter, Samuel C . C . Ting, United States, for discovering heavy elements . 45. It had to be a local thing that donated this freakishly high number of heavy elements , 46. Between the stars is a dense interstellar medium full of heavy elements emitted by evolved stars. 47. _1976 : Burton Richter, Samuel C . C . Ting, United States, for discovering heavy elements . 48. The sound of the group was often coarse and featured heavy elements of feedback and distortion. 49. Other scientists are looking to implode hydrogen with beams of heavy elements like xenon or cesium. 50. 1976 _ Burton Richter, Samuel C . C . Ting, United States, for discovering heavy elements .
