Topic
Imaging technique using focused electron beams to resolve structures at nanometer to atomic scale, used in biology and materials science.
Two decades after Janelia proposed the project, the adult fly connectome is finished. The 1,000-fold efficiency gain credited with making it possible is measured against the institute's own 2008 forecast.
Reality
Kamijo and colleagues built a pipeline that denoises 4D-STEM scans without clean training images and then sorts crystal components automatically. It is aimed at beam-sensitive materials such as polymers, whose low-signal diffraction data are especially hard to analyse.
Reality
Johns Hopkins reports that mouse axons preserved by high pressure freezing are beaded at the nanoscale, and says that shape may help set how fast signals travel, a variable the textbook drawing of a smooth tube leaves out.
Reality
For nearly twenty years, triangular pores in hexagonal boron nitride were credited to the electron beam. A Vienna group ran the irradiation in ultra-high vacuum instead, got circles, and then dialled the triangles back in with a little oxygen.
Reality
The result is mathematical rather than measured: entangle each electron with an ion, combine across electrons, and fewer electrons buy the same signal. No factor is stated anywhere.
Reality