Scientific American, Volum 224

angstroms animal atoms beam behavior brain cell centimeter chromosome circuit coil color cooling Cooper pairs crystal cycle degrees density detectors deuterium developed device disk effect elastin electric electrons energy engine enzyme experiments filter fish frequency fuel fusion hailstone heat hemoglobin ILLIAC IV illustration increase Jim Egleson Kammback laboratory laser layer lead lead poisoning light magnetic field Marlex mathematical measure ment mercury metal microscope million missiles molecules mutations neutron star normal object observed operation optical organisms output particles patients pattern percent plant plasma possible pressure problem produce pulsars pulse quasars radiation radio reactor red shift result sample scan SCIENTIFIC AMERICAN structure superconducting surface temperature tion tower tremor tritium tropoelastin ture University visual voltage wave white dwarfs