One such experiment was being carried out on the Bevalac at the Lawrence Berkeley National Laboratory using Argon 40 accelerated to 1.8 GeV and then smashed into a copper target backed with a nuclear emulsion detector. It was here that the anomalons were first observed. While studying the results of these experiments, a number of very short tracks were discovered, penetrating only a short distance into the emulsion. The vast majority of the particles continued into the emulsion over much greater distances, in keeping with expectations and the results of all previous experiments on the machine. The tracks did not appear to be from outside sources like cosmic rays. Further studies were carried out with Oxygen 16 and Iron 56, and these experiments also showed the same short tracks.