Electric fields can physically align fog droplets to make the air 85% clearer, turning a wall of grey into a visible runway.
April 26, 2026
Original Paper
Electrohydrodynamic Alignment of Fog Droplets and Directional Suppression of Mie Scattering
SSRN · 6574282
The Takeaway
Fog is a major hazard for travel because its tiny water droplets scatter light in every direction. This research uses non-uniform DC electric fields to force these droplets into a specific alignment. This alignment suppresses the way light bounces off the droplets, a process known as Mie scattering. In tests, this method increased visibility from just half a kilometer to nearly five kilometers. It effectively uses electricity to punch a hole through the fog without needing to move the air. This technology could be installed on airport runways or dangerous highways to prevent massive pileups and delays.
From the abstract
We investigate the electrohydrodynamic alignment of fog droplets in non-uniform DC electric fields and its effect on directional light scattering. Fog droplets in this study refer to liquid micro-spheres composed of a very large number of water molecules, with sizes several orders of magnitude larger than a single molecule (≈0.3 nm). The artificial fog generated in our cloud chamber exhibited a monodisperse size distribution with a mean droplet diameter of 15±3 μm, verified by laser-diffraction