Show I Li Lightweight Helium Has lIas Little Commercial Value Practical commercial utility of of the lightweight helium discovered in the air by University of California Califor ala nia scientists remains extremely doubtful the scientists scientist have report report- ed Dr Luis W W. W Alvarez assistant professor of physics physic who with Robert Roben Rob Rob- ert en Cornog graduate student from Denver detected quantities lits lit's of the lightweight helium In ordinary air reported the dl discovery dis covery covert I Is I. considered Import lat Important nt to the science of physics physic but its possible possible pos pos- sible Ible use In commercial form torm neb ucb as in lighter than air craft Is very much In doubt Reason why the commercial utilIty utility utility util util- ity of Lightweight helium Is extreme extremely ly Iy doubtful Is that no method has baa yet been devised deviled to extract any type of helium from the air In usable wable commercial quantities The scientists made their discovery ery with the aid of ot the university's ton 25 atom smashing cyclotron The United States State has a monopoly monopoly monopoly oly on heavy helium which has haa a lifting power per cent that of hydrogen the lightest known gas Pl |