TechnologySeptember 1, 1942
The Scanning Electron Microscope
High Magnifications of Opaque Objects With New Instrument Combining Developments in Many Fields
Stories by Vladimir K. Zworykin
TechnologyMay 1, 1936
Seeing in the Dark
Made Possible by the Electron Lens, Focuses Electrons as Glass Lens Focuses Light, Useful for Secret Signalling, Image Fidelity...
TechnologyFebruary 1, 1936
A Rival of the Vacuum Tube
The Electron Multiplier, Bombarded Surfaces Become Electron Emitters, Uses in Photo-Electricity and Television, May Open New Fields