Number 45 (Story #4), August 30, 1991 by Phillip F. Schewe and Ben Stein ELECTRON HOLOGRAPHY WITH ATOMIC RESOLUTION has been achieved by an IBM Zurich and Dalhousie University (Nova Scotia) collaboration. According to Hans-Werner Fink of IBM, the advent of electron holography has lagged behind optical holography using lasers because, for electrons, a coherent source of reference waves is difficult to come by; another problem is the aberrations caused by the lens system magnifying the hologram. The IBM-Dalhousie scientists used an ultra-sharp tip (tapering to a single atom), providing a coherent point source of electrons, to image thin gold films with atomic resolution, without the use of lenses. Moreover, unlike conventional high-energy transmission electron microscopy, the low-energy electron holographic technique may be well suited to work with biological samples. (Upcoming article in Physical Review Letters.)