On Space Day, the anniversary of the first successful space flight, Farley sneaks into Llewes's atmosphere room and coats the inside of the nozzle of a compressed-gas cylinder with platinum black (finely powdered platinum).
To commemorate Space Day, the day marking the first successful space flight, Farley discreetly accesses Llewes's atmosphere room and applies a layer of platinum black to the interior of a compressed-gas cylinder's nozzle.