Activation energies ΔGact for the nucleation of nitric acid dihydrate (NAD) in supercooled binary HNO3/H2O solution droplets were calculated from volume-based nucleation rate measurements using the AIDA (Aerosol. Interactions. and Dynamics in the Atmosphere) aerosol chamber of Forschungszentrum Karlsruhe. The experimental conditions covered temperatures T between 192 and 197 K. https://www.nacrack.com/flash-pick-7-5ft-Heavy-Duty-Gold-Metal-Round-Wedding-Arch-Photo-Backdrop-Stand-top-grab/