A view of the cauldron at night, with water nebulizers dissipating a small cloud of microscopic water droplets (aerosol) illuminated by LED lamps simulating artificial flames below the bottom of the tethered helium balloon.
Jacques Alexandre César Charles and Marie-Noël Robert piloting in the gondola of a balloon ascending from the Tuileries Garden, Paris, France, December 1, 1783, in the first hydrogen balloon flight