Nikola Tesla holding a gas-filled phosphor-coated light bulb which was illuminated without wires by an electromagnetic field from the "Tesla Coil", half a century before fluorescent lamps come into use.
scienceisbeauty: First photograph ever taken by phosphorescent light. The face is that of Mr. Tesla, and the source of light is one of his phosphorescent bulbs. The time of exposure, eight minutes. Date of photograph January, Source (Tesla Universe)
Photo Date: 1898 Tesla holding a gas-filled phosphor coated wireless light bulb which he developed in the half a century before fluorescent lamps come into use. Published on the cover of the Electrical Experimenter in
JANUARY picture of Saturn taken by the Hubble telescope in ultraviolet light. The glowing, swirling material at Saturn's poles is its auroral "curtains," rising more than a thousand miles above the cloud tops.