blackmountainmass:

Even solid air is a phosphorescent body.
[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. Time of exposure, eight minutes. Date of photograph January, 1894.]
NATURE 1902 | Nature, Volume LXVI, May to October 1902

blackmountainmass:

Even solid air is a phosphorescent body.

[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. Time of exposure, eight minutes. Date of photograph January, 1894.]

NATURE 1902 | Nature, Volume LXVI, May to October 1902

blackmountainmass:

Even solid air is a phosphorescent body.
[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. Time of exposure, eight minutes. Date of photograph January, 1894.]
NATURE 1902 | Nature, Volume LXVI, May to October 1902

blackmountainmass:

Even solid air is a phosphorescent body.

[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. Time of exposure, eight minutes. Date of photograph January, 1894.]

NATURE 1902 | Nature, Volume LXVI, May to October 1902