Excerpt from Formation and Life of Metastable Helium: A Dissertation Evidence as to the life of metastable helium - TO explain various experimental results, it has been suggested that atoms of helium, partially ionized by electronic collisions of volts or more and hence capable of complete ionization by further impacts of volts or more, remain in this metastable condition for an appreciable time. The foregoing results not only confirm this suggestion but also show that under the circumstances of this experiment the metastable form persists for about second. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.